High-speed yachts use the same technology, which is suitable for both civil and military purposes.

The green perpetual motion machine.

The craft can use Flettner rotors to create hydrogen. The Flettner rotors are rotating generators that drive electricity to electrolysis chambers. Then those chambers. Are used to create hydrogen and oxygen for turbines that can move even large-size ships. But also more conventional systems can use in high-power hydrogen-burning turbines. Modern technology allows installing Flettner rotors also in small crafts. Those rotors can have adjusted height.

The CONAS (Combined nuclear and steam propulsion) the system can modify to burn hydrogen. In that modified CONAS system nuclear reactor can use to make hydrogen in the electrolysis chamber. Then the system drives that hydrogen to the gas turbines that can give extremely powerful thrust to ships.

The CODLAG (Combined diesel–electric and gas)-type gas turbines are coming to small-size sea vehicles. The idea is that diesel engines are used to rotate generators. That generator drives electricity to electrolysis chambers that separate hydrogen from seawater. And then the system can drive that hydrogen and oxygen driven to gas turbines.

In harbors, the system can load hydrogen tanks by using outside power sources. And there is the possibility that those yachts are also equipped with solar cells, and of course, the capillary tube that pulls the water through the turbine, can make those kinds of systems greener than ever before. Those kinds of green energy sources can use in places. Where oil leaks can cause natural catastrophes.

Maybe that kinds of systems are not filling hydrogen tanks using electrolysis very fast but they can offer a green way to create hydrogen in cases where there are problems with diesel units. In some ideas, the yacht can also use Flettner rotors for the hydrogen creation process. As I wrote in that system the Flettner rotors can create hydrogen and then the system can drive that hydrogen to the turbines.

The diesel system or low-pressure diesel engines that can use methanol or some other types of green fuel and filter exhaust gases with active carbon can make those kinds of systems greener than ever. And of course, combustion engines can use hydrogen. The hull of those crafts might have a vacuum space, that decreases their noise signature.

The system can also be equipped with hydrofoils. In new systems, the hydrofoils are the hydraulically operating wings that the system can lay down from the yacht's body. When those wings are not needed the system can raise them. And advanced AI-driven navigation systems make it possible. That those fast yachts can operate fully- or semi-automatically. The advanced low-level light TV and Lidar systems allow the craft can see in the dark.

And those fast yachts' military versions are easy to equip with weapon systems like powerful 30-mm. "Bushmaster" cannons and small attack missiles. Engineers can hide those systems under hatches so outsiders cannot see what happens inside them.

Those systems can make damage to things like radar arrays or they can damage the commanding bridge. The system can point targets to larger warships or they can carry special staff around the world. The thing is that also criminals like drug smugglers might be interested in the fast crafts that speed can be over 150 hm/h, and the advanced autopilot allows them to operate while their crew sleeps.

https://en.wikipedia.org/wiki/Combined_nuclear_and_steam_propulsion

https://en.wikipedia.org/wiki/Combined_diesel%E2%80%93electric_and_gas

https://en.wikipedia.org/wiki/Flettner_rotor

https://en.wikipedia.org/wiki/Rotor_ship

Use virtual "perpetual motion machines" and seawater as energy sources.

Use virtual "perpetual motion machines" and seawater as energy sources. The Archimedean screw can offer almost endless energy sources. "Robert Fludd's 1618 "water screw" perpetual motion machine from a 1660 wood engraving. It is widely credited as the first attempt to describe such a device." (Wikipedia/Perpetual motion) The term "virtual perpetual motion machine" means a machine. That pulls water to the upper tank using a capillary tube. Then that water will fall through the generator or turbine wheel. The machine uses differences in pressure levels. But it looks like a "perpetual motion machine", that is impossible because of laws of thermodynamics. The machine uses differences in pressure levels. But it looks like a " real perpetual motion machine", which is impossible because of the laws of thermodynamics. The real perpetual motion machines don't use outside energy. And that's why they are not possible.

Metamaterials can change their properties in an electric- or electro-optical field.

"Researchers have created a novel metamaterial that can dynamically tune its shape and properties in real-time, offering unprecedented adaptability for applications in robotics and smart materials. This development bridges the gap between current materials and the adaptability seen in nature, paving the way for the future of adaptive technologies. Credit: UNIST" (ScitechDaily, Metamaterial Magic: Scientists Develop New Material That Can Dynamically Tune Its Shape and Mechanical Properties in Real-Time) Metamaterials can change their properties in an electric- or electro-optical field. An electro-optical activator can also be an IR state, which means. The metamorphosis in the material can thermally activate. AI is the ultimate tool for metamaterial research. Metamaterials are nanotechnical- or quantum technical tools that can change their properties, like reflection or state from solid to liquid when the electric or optical effect hits that material. The metamaterial can cru

There might be an answer to why there is a gravitational hole in Earth's gravitational field.

The gravitational field at the point of the Indian Ocean is weaker than in other places on Earth. The existence of that gravitational hole is proved. But the reason why that gravitational hole is formed is unknown. The reason why the gravitational field on the Indian Ocean is weaker might be a simple thing. There is a possible lighter rock in the mantle, or there is less material at that point. In some wildest theories, there are bubbles in magma that turn below the bottom of the Indian Ocean are less massive than in other places on Earth. The lighter material at that point should make the hole in gravitation. "Geoid undulation in false color. (International Centre for Global Earth Models/Wikimedia, CC BY 4.0) The impact of the ancient planet. In the time when Earth was young. Cause asymmetry of Earth's gravitational field, because there still is the debris of that impact. But the hole in a gravitational field is harder to explain than regular-looking asymmetry. Could the r

About futurism and things like interstellar traveling

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