Far Away Rocket

While I was thinking of possible researches on the moons of Jupiter and Saturn, I realized that there weren't many satellites operating at such long distances. I thought that lowering the cost of such missions would increase their number.

I thought about a two staged rocket. The first stage will only lift the rocket vertically up to the Kármán line. The second stage of the rocket will also be staged, but with a much radical design. The propellent tanks will be grouped by two (oxidizer + fuel). They will be connected to the engine of the rocket via external piping. There will be junctions on the tank connections. These junctions will control the flow and turn on and off the connections. There will be four pipes; first one for the propellent, second one for the oxidizer and the last two for the exhaust gas used to pressurize the tanks. Each tank will have a thin film separating the propellent from the exhaust gas. This film will eliminate direct contact of the exhaust and the propellent. Additionally, eliminate the sloshing inside the tank. The exhaust gas will be cooled to adequate temperatures inside the engine bay before released to the tanks.

Once a group of tanks are depleted, the junction box will disconnect them from the main pipes and the next group will be connected. Then, the upper section of the junction box and other attachment points will be ignited to release the empty tanks. Slightly tilted design of the tanks will also help. After the empty tank pipe connections are broken, the pressurizing gas inside will escape and push the tanks away from the rocket.

As a result, the upper stage will only have one vacuum optimized nozzle and one engine. Whereas rockets with more stages need to have as many of these as the number of stages. This saves weight and extends the range of the rocket. The huge nozzle will be designed to accommodate room for the payload of the rocket.

Vacuum only operation of this stage and slow speed through the atmosphere would allow such design.

All Mechanical Recycler

I had previously wrote about a wind powered recycler installed on landfills. I want to clarify the all- mechanical separation process within the facility.

Vertical wind turbine shaft is directly attached to the grinder disk to maximize the power transfer and simplify the design. Air blower will be mounted below the grinder disk. As the grinder disk generate tiny particles from the landfill, they will be filtered out using the rotating filters. The filters determine the size of the particles escaping from the grinder. These disks will be periodically rotated to remove any clogging. The blower below the grinder will be used to cool the grinder and the warm air will be used to blow out the grinded particles. This process will speed up the drying of the particles. Turning waste into very fine particles increases their surface area considerably. Which helps the drying process as well.

The blown away fine particles will be sorted out by their density. Then ferrous particles will be separated using passive switchable magnets (like the ones used by welders). Finally, the remaining particles will be electrostatically separated. More stages can be added to the process that help sort out the particles. These stages should be all mechanical as well.

The objective of this system is to sort out the landfill using only mechanical systems with minimum electric and chemical requirements. Therefore, the facility wouldn't rely on external resources other than the wind. This is a much more sustainable and scalable approach to recycle the landfills.

Sorted out very fine particles would then be send to dedicated recycling facilities for further sorting and purification. Large surface area of the particles would reduce the cost of further processes.

Achieving Big Goals

Achieving big goals is like aiming for a target upstream. If you cannot maintain a certain momentum, you can never reach your target. If such objectives are given by a single focus, most of the time they will fail without achieving much.

My proposition is to generate a horizontally and vertically integrated roadmap to achieve the big goal. A thorough analysis would reveal such a roadmap. The ultimate goal would be achieved by following the roadmap that has different invention points on its path. They are like the oar strokes of rowing. They add momentum to the movement. The vertical and horizontal integration creates synergy among the inventions and increase their total value.

Additionally, the organization or firm aiming for the big goal should have infrastructure to mass produce and market the inventions as fast as possible. Ideas or inventions not realized don't add value and momentum. 

Jurassic Mars

The traces of sea on Mars surface increases the probability of life in old ages. However, detecting a fossil underground is not easy for the Mars explorers. I would like to propose a setup to map the underground of Mars.

The critical part of the setup will be the digger. It will have a highly radioactive material on its front. The radiation should be gamma ray that can penetrate large distances. This radioactive particle will mechanically vibrate the front section of the digger. The surface of the vibrating part will be made of silicon carbide or similar hard material that allow gamma rays to pass through. This vibration will allow the digger to penetrate through the ground. This motion will also be used to generate small electricity to power the controller. The controller will be placed in the middle section of the digger embedded inside a thorium lead shield. Thorium’s hardness also helps the digger to penetrate. The rear section will have the motorized director. The shield in the middle will also protect the director’s magnets from the radiation. The size of the digger effects its digging capability considerably. Therefore, the smaller is the better. Increasing the number of diggers would increase the mapping speed.

On the surface there will be rammers on tripods to generate vibrations. The digger will adjust its path by the direction of these vibrations. The vibrations will also be used to send very low bandwidth signals to the digger. The digger will also reply back with partially blocking and unblocking the gamma radiation. The vibrators will be powered by nuclear battery and will only vibrate once or twice a day.

By careful guessing, planning and execution; fossils of the Jurassic Mars can be found. Maybe a theme park on Earth can be opened as well 😊

My Way Of Thinking

My memory of words and names was never good. My brain stores an information like a vector file. A bunch of parameters link to one another. Instead of a one clear image. Therefore, while writing my articles I frequently search for words and names to be more accurate and scientific.

Several years ago, I watched a short video of Richard Feynman. He pointed out the unimportance of memorizing the names compared to knowing the distinctive features of an object. I said to myself, that's what I exactly do. To be likeminded with a genius like Richard Feynman honored me. His IQ is several leagues ahead of mine.

My ability to link different things to one another help me develop so many ideas. I once played with the online AI tools. My experience was that they were trying to come up with answers based on image like information. They lacked the more vectoral and parametric way of thinking that I had. That's why many of the AI tools lack to create genuine innovation. They can't think out of the box enough.

Here is the video of Richard Feynman: "What's the name of a bird?"

A Solid Booster Design

This is the fourth stage of the rocket I had proposed earlier. It will mostly travel through space to achieve the orbital velocity. It will be a slightly modified version of the Sliding Sectioned Solid Rocket (SSSR) I had proposed earlier.

The new version of the SSSR will have stationary payload bay. Only the solid propellent will slide downward as the fuel is consumed. The SSSR works as follows: The solid rocket propellent will be ignited at the bottom of the rocket. Initially, this ignition will not propagate to the upper propellent because it will be confined by the aluminum separator. The composition of the propellent will contain more oxidizer than the fuel. The additional oxidizer will burn through the aluminum separator and ignite the upper propellent section.

The propellent will not be in direct contact with the walls of the rocket. A sheet of low-density polyethylene will be in between. Due to the heat inside the rocket, this low melting plastic will decompose into methane and ethane which will then be burned by the oxidizer. As result, the solid propellent will slide downward restricting the combustion area. By restricting the combustion volume, the thrust will be kept almost constant and the specific impulse of the rocket will increase.

The rocket will have a carved nozzle from a heat resistant ceramic. However, this ceramic will not be too thick to isolate all the heat. Some of this heat will be transferred to the trapped dry ice (solid carbon dioxide). Heated carbon dioxide gas will be used to steer the rocket. This will eliminate the complex gimbaled nozzle design.

Aerospike Ramjet Rocket

Famous Falcon 9 rocket’s nozzle is made of Niobium, propellent tanks are made of aluminum-lithium alloy, turbopump turbines are made of Nickel Chrome Superalloy. This list continues. In addition to the cost and manufacturing difficulty of these expensive materials, the geometry and the complexity of the engine is also beyond the reach of many. I had previously proposed much simpler rocket designs and now comes a new one.

The idea is to turn the engine of the rocket into a staged ram and scramjet. The air inlet cone attached to the bottom of the rocket and the air inlet cone of the upper stage will collect and compress the incoming air to be burned by the fuel droplets at the bottom of the rocket. This cone will serve as an aerospike nozzle and will direct the exhaust gas for an efficient thrust. The fuel will drip from the tiny nozzle holes drilled on the bottom of the rocket. Initially they will be covered by the solid booster propellent. Just before takeoff, this solid propellent will be ignited to clear up the nozzle holes. Additionally, the heat generated by the ignition will heat up the fuel and the air to initiate the combustion. This combustion would not be enough to lift off the rocket. Therefore, small solid boosters strapped around the first stage of the rocket will also be started. As the rocket gains speed and looses weight it will keep accelerating. The objective of this stage is to raise the rocket above the clouds and give it a sufficient speed for the next stage to generate thrust without solid booster assistance.

There will be three stages with air inlet. Each one will be optimized for the speed it will be operating. This simplifies the design and reduces weight as the depleted stages are discarded. The fourth stage of the rocket will mostly travel through the vacuum to give the payload its orbital speed. I will explain it on my next article.

The rockets will be made of stainless steel for easy manufacturability and higher heat resistance compared to aluminum alloys. They would be cast into shape and then surface finished to allow mass manufacturability. The consumed rockets will fall to the earth slowed down by the parachutes. They will be collected from the sea to be recycled again.

A Sort Of Plastic Rocket

While I was searching for the lightest solid made of carbon and hydrogen only, I found the polyethylene. Which is one of the most widely used plastic on earth. It is a very compact form of storing carbon and hydrogen. I read about the solid boosters that utilized these plastics partially. My proposition is a liquid propulsion rocket that uses polyethylene as the fuel.

Low-density polyethylene (LPDE) easily decomposes into methane and ethylene in the presence of UV light and oxygen. Stronger and more transparent high-density polyethylene (HDPE) is more resistant to decomposition. However, it also decomposes.

My rocket design has a liquid oxygen (LOX) tank at the top. Under the LOX tank LDPE will be molded surrounded by the HDPE which is surrounded by the borosilicate glass rocket shell. The idea is to initially decompose LPDE into methane and ethylene with the help of LOX and external UV light (the Sun). The generated gas will then be used by the rocket engine as the fuel. Storing polyethylene as fuel is much simpler and has higher density compared to storing liquid methane inside a pressure tank. Initially, LDPE will be consumed as fuel source and HDPE will serve as the casing for the pressurized gas. Then, HDPE will also decompose as the pressure inside the tank drops. The strength of the borosilicate glass will be enough to withstand the decomposing HDPE. The glass will only be used on the fuel section of the rocket. The remaining of the rocket will be made of aluminum magnesium alloy which adheres perfectly with silicon.

Before the rocket is launched, the LPDE will be directed to external UV light and some LOX will be released to the LPDE section. Once the decomposing gas reach certain pressure, the rocket will be launched. The rocket will be launched such that it would rotate slightly around its axis for a uniform UV exposure. The launches will be conducted at noon for maximum UV light.

Even though, this idea may not work for the first stage of a rocket, modified versions of it can be utilized by the upper stages and on some satellites.

Flying Wind Turbine

After studying the flying propeller design (propeller with a surrounding ring around it), I thought about using it on a wind turbine. The ring around the blades makes it heavier however stronger. Therefore, a lighter and thinner wind turbine blade can be designed to compensate for the additional weight while the ring provides strength to the tips.

I thought of a giant flying wind turbine. The ringed blades double as a helicopter propeller. The tower doubles as a battery. Transporting wind turbines to remote locations is not easy. Therefore, such design would allow the turbine to fly to the destination with minimal external help.

The rings around the turbine blades will generate small lift force during normal operation. This will reduce the stress on the tower during higher wind speeds. It will also allow the self-positioning of the blades depending on the wing direction. The tower of the turbine will be made of stacked lithium or sodium batteries. Its structure will be optimized to withstand the forces induced during operation.

Once the tower is assembled in a facility, its batteries will be fully charged. Then, gasoline powered drones will be attached to the tower. Afterwards, the wind turbine will be started in the helicopter mode using the battery on the tower. Coupled with the additional lifting power of the drones, the tower will take off and fly. These drones will also compensate for the rotation generated by the giant propeller like the tail rotors of a helicopter. Once in destination, the tower will be landed on the tower base pre build. Then, the tower will be electrically connected to the grid. The edge of the tower will be attached to the base. After that the turbine will be started once again in the helicopter mode powered by the grid electricity. It will then pivot over the attached edge with the help of the drones.

This setup would have limited range. However, recharging bases can be formed to extend the range. The built-in battery in the tower would keep supplying power to the grid when the wind is not available. As a result, almost every section of the wind turbine would be multipurposed to add more value. (Note: There will be an external elevator attached to the tower once it is erected.)

Low Altitude Satellite Concept

All communication and surveillance satellites orbit above the Kármán line (100km). I would like to propose a concept satellite that orbit earth between 80 to 100km altitude. This section of the atmosphere has enough atoms to lift a fast-flying object and have ions to be used as free propellent.

This concept relies on a ring wing like the one in Lockheed Ring Wing plane. The major difference being it has only the ring wing and not the plane body. Ring wings are quite efficient at supersonic speeds, have good drag to lift ratio, very strong for their weight, they fit perfectly inside a tubular rocket payload bay. The ring I propose will have a very low profile to reduce drag at supersonic speeds. It will be made of Aluminum Magnesium alloy to achieve low weight to strength ratio.

The upper section of the ring will be covered with high-efficient thin solar panels. Beneath them there will be ion thrusters. The ions will enter the ring from the gaps in front of the ring and accelerated by the solar panel electric. Flying through the ionosphere will allow infinite propellent supply.

The lower section of the ring will accommodate the battery and the electronics of the satellite. The middle section of the ring will have two ailerons attached. They will be used to maneuver the ring satellite and contribute to the lifting of the satellite.

Using computer simulations; the optimum altitude, ring thickness and weight can be calculated to see if the concept is viable or not.

If the simulations justify the design, prototypes can be deployed by a single stage rocket that only travels vertically. The ring sat would be released at a much higher altitude than the intended orbiting altitude. The fall of the sat would increase its vertical speed. The ailerons of the ring would be rotated during falling. Therefore, as it falls the ions would hit the ailerons to rotate the ring ever slightly until the ring has a horizontal flight path and enough speed to maintain its elevation.

For equatorial orbit, the satellite would only have limited ion thrust available. If that proves not enough a sun synchronous orbit would be selected to maintain a constant ion thrust.

Collapsible Surveillance Satellite

Surveillance satellites are important for military. However, their dimensions limit their deployment. I thought about a collapsible surveillance camera that uses the volume of the payload bay of a rocket more efficiently.

The key to the design is a toroidal frame that is filled with liquid or very high-pressure hydrogen. This pressurized hydrogen will be used as a giant nickel hydrogen battery. The hydrogen will double as mono propellent for the satellite for its navigation. The hydrogen will be preheated before release to improve the specific impulse.

Inside the toroid there will be a circular frame connecting the collapsible camera to the toroid frame using motors. This will form a giant motorized gimbal for the surveillance camera. Therefore, the satellite will not consume scarce propellent to stabilize and reposition the camera. Instead, infinite electric supply by the sun will be used.

The collapsible camera will have a reflective mirror lens to achieve high focal lengths. The mirror on the back will be expended using scissor like mechanism once the satellite is in orbit. The collapsible shell of the satellite will be covered by flexible solar panels. Collapsible design will reduce satellite's volume inside the payload bay. Allowing more satellites to be deployed at every launch.

Are Lead-Free and Biodegradable Always Environment Friendly?

Humanity used many materials for centuries without knowing their hazard on them. Lead is one of them. As a result, use of lead is banned on many places except for the car batteries (strange?). I am electronics engineer and I solder using my leaded solder. I watch quite a lot of electronics repair videos. Almost always the repairer uses leaded solder while fixing the electronics because it has a lower melting point (183°C) than lead free solder (217°C), causes fewer joint quality problems and poses a lower risk of adverse thermal effects on soldered components. You should have seen the failed products because their ports have failed due to broken solder joints. Sending such failed products for repair would cost a lot of money so they are discarded to landfill. If a gram of lead used extends a product’s life for one more year, I would call it a green product. Manufacturing electronic products is not green by any means. Their short life poses more environmental problems than their lack of a gram of lead. On the other hand, millions of lead acid batteries manufactured each year and not all are properly disposed. The authorities should make intelligent decisions by looking at the big picture and not play a game of Taboo and ban things because they contain a Taboo word.

One additional thing on the electronics standard’s developers. Please stop developing standards like HDMI and UCB-C ports. These ports have too tiny connectors that fail in no time and turn the device useless. Repairing such tiny tracks is not easy and most of the time the pcb is damaged during repair which bricks the device.

Now let’s come to the biodegradable shoe soles. I had so many shoes send to landfill because of their failed soles. The upper sections of those shoes were genuine leather that were still in good shape. My suggestion to the real green manufacturers not to combine longer lasting parts with the short-lived ones. For leather shoes use longer lasting soles!

Sustainable Motor Battery Combo

I would like to propose yet another modular platform. This one is based on the electric toothbrushes. Battery powered electric motors can serve multiple purposes. However, there is no proper multipurpose device available.

I propose a stainless-steel based device that has removable high voltage (12V or above) battery and removable standardized heads. The heads would have electronic identifiers on them for the base electronic to adjust the motor speed and operation pattern.

Some of the heads I propose for this platform: toothbrushes (with varieties), facial hair removers (with varieties), massager, adult toy, polishers, cleaner brushes …

There would be at least three different sizes of these devices. As they get bigger, they would be mainly used as battery-operated power tools. The key thing is they have to be serviceable. Their casing should be made of a durable material. The screws used on them should be stainless-steel. The batteries used on this platform should also be used on lanterns, Bluetooth speakers and power banks. The batteries don’t need to be very light. Therefore, they can utilize sodium batteries instead of lithium.

These devices would not have sophisticated controls, displays and wireless connectivity. They should simply work when they are turned on.

Developing platforms and settings standards for them would make countries more environment friendly. Additionally, money wasted on short lived or sophisticated yet delicate products could be spend somewhere more useful for the society.

Sustainable Toy Car Platform

I would like to extend my modular sustainable platform proposals. A sustainable modular toy car platform.

The car would be composed of a stainless-steel chassis, dc motors, central controller with RF transceiver, outer shells and stickers. This concept already exists for model cars. However, even the price of the shells is higher than a cheap toy car with remote control. By standardizing and simplifying the designs, coupled with direct sales should lower the costs considerably. Most children don’t need an exact 1/10 replica of a model. Additionally, the toys will be mobile phone controllable via Wi-Fi and Bluetooth reducing the cost of a remote. However, simple remotes will also be sold. If the dimensions are kept the same for years the stocking costs would be lower and the products would have much longer life. Just manufacture them with a combination of different materials. Longer lasting parts (chassis, motor and electronics housing) should be made of stainless steel. The fashionable parts, out of clear plastic and quality stickers that leave no residue when removed. The tires would be sold one by one and with no special coloring. The customization will be done using stickers or by paintable plastic covers. Use only stainless-steel screws. This way the parts can be replaced many times with ease and the toy looks good even if it ages. As a result, the toy would have a higher second-hand value. Customization also allows the parents to play with them as well as their kids.

I propose two sizes of this toy car chassis. The larger one would be used as an inhouse robot as well. An extension would be added on top of the chassis to accommodate a mobile phone or a tablet. This way the toy car would turn into a telepresence robot with a minimum upgrade cost.

Adding Value

After reading an article about low working hours of Europe compared to other developed nations, I wanted to share my opinions. Working hour is just a part of the equation. Pushing too much on the employee, results in more physiatrist visits, more medication, negative energy transferred to the family and friends. So its a negative chain reaction.

Companies should focus on their business model.  They have to optimize their products and services to create more value. Which then should pass to the employee who create them, not to the upper management only.

An example on software. Europe should develop their own future proof user friendly operating system (NOT LINUX) and software development framework that they manage themselves. So that they don't need to rewrite the same software again because someone changed the framework in Silicon Valley after a year.

If you direct your scarce resources that create value that lasts longer then, you can pay them more. Paying a lot to a work that has short life is not sustainable. Europe needs to develop modular platforms that extends the products life. Then with local manufacturing and direct sales online (without paying to the commissioners and traders) they can bring back the manufacturing to their homeland.

Examples on modular product design: My patented modular phone platform, home entertainment and automation platform, modular toy car design (will write about it next).

Aggregating the valuable content on the Global Data Bank; sports, movies, music, picture. Generate and store the content locally and share it globally over the Data Bank platform. Free the dependency on the social media of the Silicon Valley.

These are the main objectives that need to be achieved before spending billions on military and space!

Underwater Construction Platform

Offshore underwater construction is a complicated and slow process. I thought about ways to speed up the construction and allow more automation. The solution was to build a cartesian building platform like in CNC machines and 3D printers. In order to accomplish flexible build volume, I thought about using scissor like extensions.  These extensions will be carried by autonomous boats with twin pontoons.  Each boat will carry two extensions; vertical extension to be lowered down to the sea floor, horizontal extension to connect with another extender boat. When four boats reach the construction site, they will extend their extensions to form a cartesian build platform. The pontoons will be filled with sea water to sink the boats slightly to improve stability. Then, other autonomous boats will arrive and attach carriages on the scissor like extensions. The extensions will have rails to stabilize the carriages. Above surface carriages will be used like cranes to lower parts underwater. After that, underwater horizontal extensions will be lowered and mounted. Then, underwater carriages will be mounted on the extensions which then carry the construction arms.

Once the cartesian construction platform is assembled by the robot boats, the underwater construction would begin. The extender boats would double as docking ports for the boats carrying construction material. They will also have vertical wind turbines to generate electricity on site to power the construction arms underwater. Human operators can also be nearby accommodated in another boat.

This method of construction would be much faster than using construction ROVs which cannot carry big and heavy parts. They are also slow and their tether pose big problems. Underwater construction platform would allow high power and data connectivity to the multiple construction arms to speed up construction and precision.

Glass Sphere of the Underwater Habitat

I chose the underwater habitat to be made of a giant laminated gorilla glass sphere with aluminum enhancements. Laminated Gorilla Glass is transparent and very strong. Properly selected aluminum alloy on the other hand is resistant to underwater corrosion and it bonds perfectly with silicon dioxide (glass).

The sphere will be constructed underwater. The glass sections will be manufactured on land and they will be connected with each other using molten aluminum underwater. It’s like an underwater stained-glass manufacturing. Instead of lead, aluminum is used to increase strength and improve water sealing.

I decided on my idea after reading these articles:

Aluminum has strong adherence to silicon and silicon dioxide

Induction Heating in Underwater Wet Welding

Induction heating aluminum underwater is technically possible. The electric required for this process would be supplied by the construction ship on the surface. The heated aluminum will then be poured on the gaps between the glasses to form a strong structure with good sealing. This technic once perfected would allow giant structures to be constructed underwater.

Building structures using smaller and relatively light weight materials (compared to steel) would allow autonomous robots to carry the construction work on site. They would be powered by electricity generated by floating vertical wind turbines attached to the autonomous construction ship.

Underwater Habitat

Building human habitat on extreme environments is a challenge. I would like to propose one for underwater.

The main habitation area will be a giant sphere made of laminated gorilla glass and aluminum. This underwater sphere will be connected to the surface by an Eiffel-like structure. The underwater Eiffel tower will form the foundation for the docking facility on the surface and the vertical wind turbine. There will be a satellite transceiver on top of the wind turbine for internet connectivity, a radar to detect the incoming ships and a light house to inform the incoming ships at night. The transportation from the surface to the ground sphere will be conducted by twin spherical elevators. The surrounding of the underwater habitat will be illuminated by the lights attached on the tower. They will be operated periodically not to disturb the life underwater. There will be artificial corals to enrich the underwater habitat.

This underwater world will be constructed by autonomous robots. I will explain it in detail in my next article.

Modular Entertainment Platform

I had previously explained about my modular home entertainment and automation system. I want to add more details to that. The main objective of this idea is to separate visuality from functionality and make different functionalities modular.

Each module will have its own power supply so only line voltage is transferred between the modules. The data transmission between the modules will be optical. The dimensions of the modules will be fixed like in LEGO. This will allow predefined casings to fit on top of the modules. Some of the modules will be: Mini PC (central processor), graphics card module (for advanced game playing), PCIe memory expender with flash card readers (has room for 16 modules), Blu-ray reader, satellite receiver (quad tuner), cable tv tuner (quad tuner), UPS battery. All the modules except the mini pc is optional. Additional processing is allowed over optical data connections for better game playing.

The Hi-Fi Speakers will be active and have their amplifiers build in. They will be connected to the mini pc over a cable that carries line voltage and optical audio signal. Each speaker will have one input and one output connection to allow cascaded wiring to minimize cable clutter. Additionally, external batteries will be attachable to the speakers to allow wireless operation. The battery would double as a UPS as well. Wireless modules will be attachable to the speakers to allow them to be compatible with future technologies. The speakers will be standalone usable. Allowing the user to use them independent of the mini pc if needed.

The remote control of the platform will have a display and mechanical controls like the ones used on video and audio editing studios. It will also have a finger print reader to allow fast switching between the users. This is a home use device that many will share during the day. In order to maintain privacy among users’ finger print reader is preferred. Users may store different profiles assigned to different fingers.

The covers of the modular base and the speakers will be user replaceable. The covers will be made of metal and plastic frames covered by wood veneer, leather and fabric. Uncovered covers will also be sold with template to allow users to create their own cover.

Not to forget. This platform will only be sold online by the manufacturer without any middle reseller in between.

Hotel Concept

I thought about a hotel concept that solves some of the problems I experienced during my stays.

Cleanliness: It will be solved by using single use towels, bed sheets and pillow covers. The hot and cold single use towels inspired me. They are good in water absorption and are durable. These single use materials will be made of cellulosic fibers bind together. After use, these binders will be dissolved and the cellulose will be cleaned from impurities. Then, they will be rebound as new. By careful selection of binders and dissolvers it would be a much hygienic and environment friendly solution to existing towels and sheets.

There will be no rug on the floor which absorbs a lot of dust and smoke as well as generate electrostatic electricity. Instead, the floor will have sound absorbers beneath the ceramic tiling. The ceiling and the walls will also have sound deadeners to reduce echo and make the rooms more sound proof.

Servicing & Food: Each room will have a service elevator within the room. The extra towels, cleaning kits and food will be send to the guests via the service elevators. This will speed up the servicing and reduce the costs. The food will be priced lower, thanks to the lowered cost of servicing, to encourage in hotel consumption.

Entertainment: The rooms will have a flat display which is simply a monitor. There will be a mini computer that controls the tv tuning, internet broadcasting, wireless connectivity, audio and room automation (air conditioner and lights). Mini computer will allow the guests to control the room lights, air conditioning, tv and audio from their mobile phones. The room will have two Hi-Fi speakers mounted on the wall. These speakers will double as TV speakers and Bluetooth speakers for the guests to connect their smart phones.

SPA: The hotel will have individual jacuzzies that have proper massaging pumps. Each jacuzzi will have a water reserve on its bottom. After every use, the water inside the jacuzzi will be filtered and stored inside the tank. After the jacuzzi is emptied, it will be steam cleaned before the next use. This system will be fully automated. Each jacuzzi will have sound proof curtains to allow privacy and swivel water proof screens for entertainment. Additionally, there will be high-end massage chairs for automated massaging of the guests.

Providing affordable quality service on many hotels is almost impossible to achieve due to scarcity of quality service personal and its cost. The objective of this concept is to lower the servicing costs by the use of basic robotics.

Space Avalanche Debris Cleaner

I would like to share my latest idea on space debris removal. My inspiration comes from the atmospheric drag experienced by the orbiting objects. Most LEO satellites orbit below 500 km. If you look at the composition of Earth's atmosphere with elevation you would see very high oxygen concentration between 150 to 600 km. My proposition for space debris removal is to spray warm RP1 over the orbiting debris area.

The concept will work like this. A two staged liquid propulsion rocket will be modified to conduct this task. The second stage of the rocket will have no payload section. It will only have LOX and RP1 tanks. RP1 tank will be much larger than the LOX tank. The amount of LOX will be just enough to reach the second stage close to its orbiting velocity. The remaining RP1 will be used as warm gas propulsion during navigation.

The second stage will be orbiting the earth at a higher elevation than the space debris’ orbit. The nose of the second stage will point towards the earth. This nose will carry a heated chamber and a spray nozzle. The RP1 will be pre-heated before being sprayed towards the earth. The trajectory of the spray will be calculated to intercept with the debris’ orbit. RP1 auto ignite at 220 °C at 1 Atm. At lower pressures this temperature is much lower. As a result, the RP1 molecules will combine with the Oxygen atoms on their way toward the earth. Creating an avalanche like effect. Even though they will be dispersed, their momentum will push the debris towards earth slightly. Therefore, reducing the debris fall out time. This method would be more effective for smaller debris which are the most dangerous ones for the satellites.

The spraying of RP1 will continue until all the fuel is consumed. Then, the second stage will be directed towards Point Nemo. This method is quite easy to implement and execute based on the current rocket designs. It also allows larger areas to be cleaned on every launch.

Stealth Plane

When we talk about stealth military planes, it’s mainly about their radar invisibility. They are clearly visibly by eye and can be detected by the cameras of the satellites. Not to mention their considerable exhaust signature.

I thought about an ultimate stealth airplane. As with most of my concepts, it will have multiple wings. The wings and their connecters will be painted with the radar absorbing paint. The upper most wing will be covered on top with the invisibility shield material. There will be centrifugal fans between the wings for propulsion. The wings will accommodate low profile nuclear batteries. Multiple high aspect ratio wings will reduce the stall speed of the plane. Therefore, fans will supply enough thrust for the plane to fly. Centrifugal fans are quite and highly efficient in moving large volumes of air. As a result, the plane will not have a protruding propeller, noise of a propeller and an exhaust heat signature. It will be invisible to the eye and the cameras of the satellites by its invisibility shield on top. It will be silent to the ear by the silent centrifugal fans. On the bottom it will be invisible to the radar waves with the help of its radar absorbing paint.

Multiple high aspect ratio wings create a lot of lift which allows higher altitude operation even at low cruising speeds. The nuclear batteries will allow almost infinite range for the plane.

The Driller

The invention of dynamite changed the whole mining industry. The miners would drill small holes on the face of a mining tunnel. Then, they would place the dynamites into these holes. After a controlled detonation, the mining work would advance further. Technologically more advanced version of this idea can be applied to the Bunker Busters as “The Driller”.

The Driller would be comprised of three different bombs. The critical first one would be a screw bomb. It would be made of the hardest material known to men, carbon nanotube. If that’s not feasible, silicon carbide or titanium carbide can also be used. The drill bit shaped nose of the bomb would be guided by the missile section at its rear. The idea is to drill inside the target with the initial momentum. Then, a second bomb would be launched to the same target that simply carries RP1 with no explosive. Once it hits the target, RP1 would pour inside the drilled hole. Finally, the third bomb would be launched to the same target that carries liquid oxygen. Once it hits the target, LOX would pour inside the drilled hole mixing with the RP1. A delayed fuse would then ignite the highly explosive mixture which had penetrated inside the cracks.

This concept can also be adapted for lunar explorations as well. Gathering samples from the depths of the moon would be a possibility. The use of RP1 and LOX allows easy integration with the current rocket designs.

Green Manufacturer

I don't like complaining about companies in this platform, but I feel I have to after my latest experience. I use Audi A3 for years. Recently I had my car's regulatory check. The car's exhaust gas emission was high. I contacted the official service of my car for a resolution. I had my car officially serviced prior to my regulatory check. What I learned was, they didn't have any exhaust gas emission tester and with my car there was no option of adjusting the software parameters to reduce the emission.

Germany is well known for their environment consciousness. Too much effort is put on reducing carbon dioxide emission. However, what I see is very little have been done by German car manufacturers to reduce the emissions of their cars. Cars require routine servicing. Even if they are perfectly build to have low CO2 emission. Some adjustments need to be made continuously as they are used and aged. However, if the car manufacturer's official service does not have exhaust monitoring and the car computer's parameters cannot be adjusted to compensate for the aging of the car, then the green movement would be doomed. Manufacturing a product is a great responsibility for the entire life of the product. Keeping their products green for their entire life, makes a manufacturer green.

My proposition for the car manufacturers is to place exhaust emission testers on their services. Each car being serviced should be checked for emission. If needed the car's spark plugs would be cleaned. Again, if needed, the car's computer parameters should be adjusted to compensate for the aging of the O2 sensor to reduce the emission of the car.

When my car is serviced by an official service, I would like to see it perform better and greener afterwards.

Fire Dome

The famous phrase of the recent days "Iron Dome" and my research on Tritium made me think of a fictional design, "Fire Dome".

Comparably high concentration of hydrogen isotope at a relatively low altitude can be used to light fire at certain altitudes, mainly around 20km. Higher concentration of ozone at those altitudes is also a nice coincidence. I thought if high altitude airship I had proposed could be modified to beam sound waves to concentrate and compress the air at specific location and then lit up by laser remotely to produce an explosion that could damage an enemy missile at close proximity. Most probably the hydrogen concentration would be so low to create such an explosion. Even if this idea worked, it would have one major drawback. It would only work on daytime. Considering the nightly missile attacks it would have limited benefit.

Tritium Harvester

Tritium, once discarded as a by-product of Canadian nuclear reactors, is now one of the most expensive materials on Earth. This rare isotope of hydrogen powers glow-in-the-dark keychains, exit signs that can stay bright for two decades without power and cutting-edge fusion energy research.

I made some research on tritium and how it was formed in nature. This research caught my attention, “Production and Transport of Cosmogenic Tritium in the Earth’s Atmosphere in the PARMA Model”. Tritium concentration by altitude looked similar to ozone concentration and minimum wind speeds. The peaks were different but there was some correlation. Then, I thought if the surveillance airship design, I had proposed, can be modified to harvest tritium at altitudes 20km.

Tritium is produced naturally in the upper atmosphere when cosmic rays strike nitrogen molecules in the air. During day time tritium concentration increases at altitudes depicted on the graph. Therefore, a solar powered airship can harvest tritium during daytime. It’s an idea that can be studied further.

Surveillance Airship

Air surveillance is important for country’s defense. This objective is achieved using satellites, drones and sometimes with high altitude balloons. I thought about a hybrid design of high-altitude balloon and a multi-wing plane.

Classical spherical balloon shape induces a lot of drag and is not ideal for almost stationary surveillance work. I thought about shaping the balloon like a wing to reduce drag and increase its controllability. A similar design had been tested for meteorological balloons (Developing a Wing-Shaped Captive Balloon). The wing form was thin and didn’t have enough volume for floatation. Therefore, two gasbags were installed at the ends of the wings. This article changed my idea. My new design would have multiple high aspect ratio composite wings to achieve high lift-to-drag ratio. Assisted by airship form airbags at the ends of the multi-wings. As a result, the lifting of the airship is achieved by the two balloons and the multiple wings. Wings increase the steering capability of the airship compared to standard balloons. Therefore, high altitude surveillance airship can air-patrol a specific location for a long duration without refueling.

The upper wing will be covered with solar panels to recharge the nickel-hydrogen batteries. NASA developed NiH batteries can operate at sub-zero temperatures negating the need for heaters. I propose the airbags of the airship to be filled by hydrogen gas which would double as air lifter and battery. The low-pressure hydrogen would reduce its capacity but the airship does not need very high-capacity batteries.

The airship would operate at altitudes between 20-25km due to minimum wind speeds at those altitudes. The hydrogen filling process of the airship would be fully automated to reduce the risk. Additionally, the airship will have vents to exhaust its hydrogen gas in case of emergency. Therefore, the air ship would land on the ground without hydrogen on its airbags. The multi-wings assisted by parachutes will allow the airship to land safely in case of emergency.

The Fuel For The Army

The logistics are very critical for an army. As the importance of air force increased for the armies, some armies started using jet fuel on their trucks and armored vehicles to simplify the logistics. Now the rocketry is becoming more important. If more liquid rocket engines are utilized by the armies, then it would be wise to switch to liquid natural gas as the main fuel for the whole army.

The extensive natural gas pipelines and reserve locations allow easy access of this fuel around the country. LNG can be used as rocket fuel and new generation of fighter drones can also be powered by this fuel. Already some trucks utilize LNG in civil service which can be adapted by the military vehicles as well. Additionally, natural gas can be produced from coal if needed whereas jet fuel and diesel need to be exported.

Multi Purposing Space and Military Rockets

The world is heating up. The importance of air defense and ballistic missiles are increasing rapidly. Once the disputes start the inventories dry up quickly. The one that can replenish its inventory faster would have a major advantage over its enemy. Ballistic missiles and space rockets have many common points. My proposition is to develop the largest possible 3d printed liquid rocket engine and mass produce it using 3d printers on demand. Low engine count versions would be utilized as missiles. Large engine count versions would be used on space rockets. Super Heavy has 33 Raptor engines. A Falcon 9 equivalent rocket may be build from 33 small engines as well.

I propose the use of liquid natural gas and liquid oxygen for the rocket and missile propellent. The missiles can be filled with propellent close to the launch site. Many countries have extensive natural gas pipeline network that has storage reserves on various locations. Additionally, natural gas can be synthesized from coal if needed. Therefore, natural gas has less criticality compared to RP1 or similar rocket fuel for oil importing countries.

Unlike solid fuel missiles, the liquid propulsion rockets cannot be stored in ready format. However, they can be manufactured and stored unfueled. They would be fueled on demand using mobile gas liquefier stations distributed around the country. Liquid rockets have the advantage of longer flying time and therefore can deceive the enemy defense system compared fix flight trajectory rockets. They can be designed in multiple stages to extend their range as well.

Space and military expenditures can easily bankrupt an economy. Therefore, multi purposing is very important. Design a rocket engine and architecture. Then, scale it to span your needs from military to space. Reliable mass production capability would allow the country to frequently launch rockets to space in peace time and manufacture missiles during disputes.

Environment Friendly Sea Resort

As the weather heats up, the sea resorts start filling up with tourists. The watersports are also a fun part of the summer holiday. All those boats and jet-skies still consume diesel. Polluting the sea and the air. I propose that we should build more electric powered boats and jet-skies for the sea resorts. Such boats don’t require range. They operate close to the shore. They can easily be charged using floating small wind turbines. In locations where strong sea currents exist, wave and sea current electric generators can also be utilized.

Due to summer heat, the air-conditioners operate almost continuously. They consume a lot of power. Therefore, more renewable energy would be required to power the resorts. It can be generated by solar panels during the daytime and by the wind turbines at night.

Stealth Submarine

I would like to propose an ultimate stealth submarine design. It would basically mimic giant whales. It will use electro mechanical flukes and flippers to navigate underwater. Such small submarines are already built in laboratories. I guess they can be scaled up.

The main power supply of the submarine will be hydrogen fuel cells. The submarine will carry liquefied hydrogen and oxygen to generate electricity. The byproduct of the fuel cell will be consumed as fresh water on board the sub and the surplus can be ejected into the sea after being cooled down. Therefore, there will be no trace left behind. The sub will also have nuclear batteries to generate electricity as backup power. The surplus power of these batteries will be used to electrolyze the sea water to refill the hydrogen and oxygen tanks.

The submarine will carry smaller bot fishes on board. They will be used to investigate the route ahead. The small fishes will utilize special sonar sensors mimicking the living fish. Due to their smaller size, they will be undisguisable by the enemy. Once a fish finishes its investigation it will return back to the sub and offload its data acquisition.

The sub may not have the range of a nuclear submarine. However, a highly automated system will require less personal and there would be more room for the weapons.

The Turn of the Screw

Constructing wind turbines on the field is a complex task. I thought about a design for a vertical wind turbine that is considerably easier to assemble on the field.

The tower of the wind turbine will be composed of threaded tubes. The tubes will be made of carbon fiber woven tubes filled with stainless steel instead of epoxy. Stainless steel is more resistant to wear and has lower expansion coefficient than epoxy. The tower made of intertwined tubes will be transported inside a full-sized container. The bottom section of the tube will be screwed with long stainless-steel screws to the ground. Cement can be used on the base as well. Then, the wind turbine blades will be attached to the inner most tube which has a higher height than the others. Then, the inner tube will be rotated using the attached blade sections. As the inner tube raises up to a certain height the locking pins will be engaged from the inner tube to the second inner tube. These pins will stop the rotation of the inner tubes and transfer the turning torque to the second inner tube. As the tubes ascent one after the other, more sections will be attached to the wind turbine blades. The second from the last tube will be actually the electric generator of the turbine. Therefore, it will be much thicker and heavier. The other end of the turbine blades will be attached to this tube. The last tube will be used to raise the generator from the ground to a safer height.

This design has a very low center of gravity compared to traditional wind turbines that are top heavy. Therefore, much taller towers can be constructed with this method. Most of the mechanical controls and electronics will be close to the ground level. Improving the tower’s serviceability. Additionally, the tower can be easily dismounted. This time, the tubes will be turned the opposite direction. As the tubes descent, they will disengage the locking pins and allow them to turn freely.

Stealth Rocket Launcher

Military satellites are critical in case of a dispute. In case of an emergency new satellites need to be launched safely. The well-known positions of launch sites make them vulnerable. I thought about a stealth submarine to accomplish such tasks. Its partly based on the Swedish submarine that sank US aircraft carrier during an exercise. (A Swedish Stealth Submarine Sank A U.S. Aircraft Carrier).

A typical submarines length can easily exceed 100 meters. On the other hand, the height of Falcon 9 is 70 meters. The diameter of a typical submarine is larger than 10 meters; Falcon 9’s is 3.7 meters. The submarine I propose will have the rocket placed on its upper haul. Beneath the rocket there would be fuel and oxidizer tanks. The front section of the sub will be a rotatable nose cone with internal ballast tank. The rear section of the sub will accommodate the control room and the electric generators. Four brushless dc motors will be strapped externally to the back of the sub. This design will eliminate the need for rudders and the submarine will operate like ROVs.

The stealth of the submarine will be achieved by the internal electric generation using fuel and oxidizer. This proved the be more silent than a nuclear submarine. As a fuel I propose RP1 and LOX as the oxidizer. This will allow the submarine launch site to fuel the rocket and the submarine with the same propellants.

When the sub arrives at the launch site. It will surface and empty the ballast tank on its nose. Afterwards, the submarine will raise its nose while folding it downward. The empty nose will establish the launch angle for the rocket. Then, the rocket will be launched. Launching from an enclosed tube will add positive to the rockets initial thrust.

Environment Friendly Metal Concerts

It is quite well known that most metal concerts are not that environment friendly due to their immense amount of noise and huge fire shows. I have some solutions to these problems. I got my inspiration from the Paris Olympic flame. I propose the same illusion made up of clouds of mist and beams of light instead of the fire shows. Additionally, the towers used for this illusion can double as the tower for vertical wind turbines. These turbines would have three purposes. First, to generate electricity for the concert; second, some parts of the turbine blades would have special reflectors to scatter beam of light to create light show; third, some parts of the turbine blades would be covered by sound dampening material to reduce the sound pollution.

Finally, the backup electric generators would not be using diesel fuel, but fuel cells that operate with alcohol. It would suit well with the alcohol consumption during the concert.

Sustainable Offshore Wind Farms

Most of my sustainable projects relied on offshore wind farms. I got feedback that current technologies would not allow some of my ideas. Then, I came up with a sustainable offshore wind farm building platform. It relies on vertical wind turbines that are connected with each other in lattice structure. This design eliminates the need for wire tethers and complex floats and more.

The platform starts with the construction of aluminum refining and extrusion facilities on a shore with dedicated harbor. The proposed wind turbines will be constructed mainly with anodized aluminum. Even the electric generator wires will be out of aluminum. The objective of this is to minimize the number of exported materials to construct a wind turbine. Aluminum is abundant and its cost is mainly the cost of electricity. My proposition is to create a sustainable cycle in electric generation; use aluminum to build wind turbines, use generated electricity to manufacture more aluminum. The vertical wind farm would start from the harbor and extends towards the sea.

Offshore vertical wind turbines have their center of gravity in line with their main axis. This simplifies the design and allows a lattice of wind turbines to be constructed one after the other. Lattice would be constructed using hollow or filled aluminum rods. Each turbine tower would touch the seabed. Then they would be connected with each other just below the most ships’ waterline. I propose this underwater structure to form the neutral line for the electric grid of the wind farm. The phase of the electric grid would be carried by the curved rods connecting each turbine. Additionally, these rods will support the turbines from the top to increase the structural rigidity. Therefore, no need to lay expensive underwater power cables from the wind farm to the land. Aluminum structures double as support and electric connectors. This design requires transmission transformers on top of each turbine.

Simplified lattice construction can be automized using electrically operating robots to make the process even more sustainable.

Increased power generation on the shore would result in a larger harbor and more facilities. Raw materials imported would be shipped to this harbor and energy intense processing would be done on the shore facilities before being sent to the inner land for use.

Greatest Sportsmen

This morning, several hours before I woke-up, I saw Novak Đoković in my dream. He was staying in our house in Adana with his family. I talked with him. I said I am sorry to see him lost the day before, but happy to see him in my house because he had lost. If he had won, he would have been preparing for the match. And he replied, "No Problem". I said, I was planning to write about him in the morning. And he replied, "This Is Important". Now I am writing the article I had thought about several days ago.

I mainly watch volleyball, basketball, football, tennis and the Olympics in terms of sports. Among all these sports, tennis differentiates itself from the others. The tennis players are several leagues ahead of the others because they are alone in the court. They have no one assisting, supporting or substituting them. Either they play or walkover. Additionally, for me what differentiates human from the other animals is their thinking ability. Therefore, physical ability only athleticism is not that valuable for me. Running 100 meters in one second or jumping a thousand meters above ground don’t mean much to me. Deciding where to run, where to position, how to move your body and arm, add much more value to simple athleticism. In order to win in tennis, you have to be athletic and make the right decisions in milli seconds continuously for hours all by yourself. Tennis players are physically and mentally the strongest sportsmen.

I have been watching Đoković for the last 4 years. Even though I was a Nadal fan. Novak is really superior. More importantly he had distributed his success over the years. Every age brings something new and takes back more. Only a few sportsmen can adapt themselves to their age. Additionally, he can speak so many languages that I cannot list here. That is why Novak is the Greatest Of All Time.

As a result, in my point of view Novak Đoković, Новак Ђоковић, is the greatest sportsmen in history!

Multiplane Coastal Transportation

In recent days we hear more about the success of the electric powered planes. I would like to make some suggestions to the designers. There are many coastal regions where air and sea transportations are advantageous over the land. For such regions an electric plane with multiple wings can be a feasible option.

Multiple wings with high aspect ratio have a very high lifting capability. For drone cargo planes range is critical. High lifting capability would enhance the range of such planes. Large surface area of the wings allows ideal storage space for thin polymer batteries. Large surface area and direct contact with air, allows passive cooling of the batteries compared to active cooling that consumes power. Additionally, there would be more storage space inside the body of the plane.

High-lifting capability also allows the plane to take-off from much shorter runways. An extension on the existing harbor would serve as a runway for such planes. Additionally, off-shore wind turbines would be utilized to charge the batteries of the plane.

Countries should invest more on coastal infrastructures that utilize the off-shore wind energy. Instead of trying to power utilities thousands of kilometers away.

Datacenters for the Moon and the Planets

In recent years there is trend to establish datacenters in space. I don’t find it meaningful for Earth. However, it may be logical for the moon and the planets. Sending human to the moon and beyond is not an easy task. Therefore, robots are utilized for such tasks. However, the processing power of such robots are limited. Additionally, such robots lack a constant high-power supply.

My proposition is to send AI satellites to the Moon, Mars and Venus. Due to distance, the communication with such locations cannot be accomplished in real-time. There are cases when the decisions need to be made quickly based on a knowledge base. A satellite orbiting the moon or a planet can be built to have enough processing power and memory to accomplish this task. Additionally, the satellite would have consistent solar power unlike the rover on the ground.

Lunar Tumbler

Here is a lunar lander design to solve some of the challenges to safely land on the moon. It is based on the Enclosed Rocket Nozzle design I proposed earlier. The idea is to encapsulate the large nozzle bell inside the rocket casing. In this case, the lunar lander casing. The lander will be an egg shaped tumbler that carries a robotic spider as the yolk.

The lander engine will be surrounded by the RP1 fuel. This will cool the nozzle effectively and pressurize the tank. The exhaust gas of the turbopumps of the engine will be pumped inside the propellent tanks to increase pressure. Additionally, these exhaust gasses will be used on the warm gas thrusters for navigation control while the main engine will not be gimbled.

The bottom heavy egg shaped design will reduce the touch down impact. Warm exhaust gas filled propellent tank casing will serve as a hard air bag on impact. After landing, the precisely placed explosives will crack the shell to reveal the spider robot explorer. The spider will operate with a nuclear battery and will communicate with the earth via the lunar relay satellites. I will not get into the advantages of using a spider bot over the stationary landers and wheeled rovers.

Few Words on Space Exploration

After watching another unsuccessful lunar landing mission, I wanted to rephrase my points towards a successful space exploration roadmap.

There are a lot of ambitious startups that want to show their skills to the world. With limited resources and know how they undertake missions. Some accomplish the mission some not. Space exploration requires intense human and monetary power to operate. The efforts should be united, the knowledge should be centralized. More importantly, the ambitious roadmaps should be accomplished on solid foundations.

For example, for the goal of establishing a lunar station you need to establish the infrastructure first. It's been more than six decades that we started missions towards the moon. We still don't have a satellite network around the moon. Companies still try to send landers. When their missions fail, they have very little information to study what went wrong. More importantly, the missions are not harmonized with one another. I don't know how much information gained by one company shared with the others. Little bits of closed knowledge don't help a country excel in the space race. That's why space agencies were formed. These agencies need a reform for sure. A proper business model should be developed for them. Intelligent people who are in love with space should be able to work efficiently within the agencies instead of forming another startup. 

We have so much individual missions planned. However, humanity still don't have a proper lunar lander technology. Almost all the tiny landers are a small copy of the Apollo lander. Is that all the innovation we could develop after all those years? We cannot learn much about the moon if we can only land on the large flat areas with a low success rate. In the meanwhile people talk about asteroid mining. If we cannot land on a flat moon surface properly how can we land on an uneven terrain of an asteroid and mine?

Success lies on the infrastructure. Establish satellite network around the moon. Design a lander that can land on most terrain with high success rate (I had proposed several alternative designs.). Use nuclear batteries on the landers. Finally, and most importantly develop a central knowledge base. Startups don't have access to all these technologies and we see the result. Once you have strong foundation, you can build high-rise buildings.

Red, Green, Blue Tennis Tournament

I had thought about a city fully dedicated to sports. It would have sports schools, training centers and sports arena for events. The city will have multiple arenas for each sport. For example, tennis will have 8 moderate sized stadiums. The stadiums will be grouped by four that are connected with each other.

Here is the tennis tournament I thought for the city. The stadiums will be robotic. Each stadium will have three different courts with different surfaces. These courts will be swappable like the stage lifts in a theater. The red court will be clay, green court will be grass and blue court will be hard surface.

The tournament will be invitation only. Top 32 players (men and women separate) will be invited for a three-week competition. In four of the stadiums men’s will play; on the other four, women’s will play. The tournament will start with clay courts on a Tuesday. The matches will be played simultaneously. First round will be held on Tuesday and Wednesday on two sessions (15:00 and 19:00). Second round will be on Thursday. The quarter finals on Friday. Semi finals on Saturday and the final on Sunday.  Then, the Red Tournament will end. Second week on Tuesday the grass tournament will begin. On the third week the hard-court tournament will be held. All the players will be playing on three different surfaces in three weeks.

The competition will have similar format with the Olympics. Men and Women will play best of three sets. The winner of every surface will get a small decorative statue made of colored marble, titanium, 14 carat gold, crystals and colored synthetic gems. These statues will be same for men and women. For red tournament the gem will be ruby; for green, emerald; for blue, sapphire. The loser on the final will get a slightly smaller statue with no colored gems. Semi-finalists will get statues without gold and gem stones. The price money will be determined by the latest value of 10kg of gold. At the end of the tournament, the player who got the most points in all three surfaces will get additional bonus.