Hypersonic flight will be the next fundamental advantage in aviation.

Hypersonic flight is the key to the next-generation missiles and aircraft as well as space shuttles in civil and military sectors. Aircraft that can jump outside the atmosphere and then return can be the next-generation solutions. There are rocket-based hypersonic missiles already in use. But the Scramjet-powered systems are new.

Hypersonic missiles can launch from aircraft or by using a rocket. They can equip with powerful microwave systems that can damage electronics or even melt targets.

Launching those weapons from aircraft is similar to a regular cruise or air-launch ballistic missile. If the weapon is shot by using a ground-based rocket the process is a little bit different. The rocket will jump outside the atmosphere. And then the hypersonic missile can get enough speed. That the scramjet engine can start. The scramjet or hypersonic ramjet-based systems can also launch from the regular runways.

There are three versions of that kind of engine system. The first one is that the aircraft lifts off by using regular turbojets. Then when the speed is high enough the aircraft transfers to use the ramjet engine. And when the aircraft's speed rises to Mach seven or seven times higher than the speed of sound. It starts the fuel injection to the scramjet engine.

The B-2 Stealth bomber over the Pacific. The hypersonic stealth bombers can be the most destructive systems ever created. (Image Wikipedia: Northrop Grumman B-2 Spirit)

There are no moving parts in the scramjet engine. The airflow or the fuel-air mixture's friction causes heat.

That heat ignites the fuel. Which can be liquid hydrogen. The liquid hydrogen can also decrease the temperature of the core of the engine and aircraft.

And the problem with scramjet is that the speed of that engine must be over Mach 6 so that the scramjet can ignite the fuel. Another version is to make the airflow through scramjet with extremely high speed.

That thing can be happened by connecting the hypersonic wind tunnel behind the scramjet engine. That wind tunnel can pull the air through the scramjet, and the friction will engine the fuel.

But there is the possibility to create the ion scramjet. The engine ionizes air at the front of it. And then the magnetic track will pull those ions back. The magnetic track requires electricity. That's why portable lightweight nuclear reactors are promising tools to give fuel supply for that kind of device.

The hypersonic stealth bombers are the most capable systems in the military world. Those bombers can attack very fast on every side of Earth. The large-size hypersonic aircraft can also transport people and cargo all around the Earth very fast. And if the hypersonic engines use hydrogen as the fuel they have no carbon emission.

https://www.defenseone.com/technology/2022/04/lockheed-martin-hopes-us-has-turned-corner-hypersonics/365631/

https://www.defenseone.com/business/2022/04/collins-aerospace-creates-group-make-hypersonic-weapons-next-generation-aircraft/365601/

https://eurasiantimes.com/us-aims-to-develop-next-gen-fighters-hypersonic-missiles-with-new/?amp

https://thepointsguy.com/news/fresh-investment-brings-the-hypersonic-flight-dream-closer-to-reality/

Image: https://www.defenseone.com/technology/2022/04/lockheed-martin-hopes-us-has-turned-corner-hypersonics/365631/

https://en.wikipedia.org/wiki/Northrop_Grumman_B-2_Spirit

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

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

Schrödinger's cat: and the limits of that idea.

"In quantum mechanics, Schrödinger's cat is a thought experiment concerning quantum superposition". (Wikipedia, Schrödinger's cat). But the same thing can use as model for many other thought experiments. Sooner or later, or at least in the ultimate end of the universe, the Schrödinger's cat will turn into wave movement. The information that this cat involved exists but the cat does not exist in its material form. The information doesn't ever vanish. It just turns its shape. We are all trapped in the universe and time. The universe is the space that is entirety to us. There are no confirmed other universities. But the multiverse is a logical continuum for the expanding galactic megastructures. The problem with natural things is this. They are black and white. They exist or do not exist. Could there be something, that exists and not exists at the same time? Scrödinger's cat is thinking experiment about case their cat is not dead or not alive. But in this...

The string theory offers a new way to calculate Pi.

"Scientists discovered a new series for pi through string theory research, echoing a 15th-century formula by Madhava. By combining Euler-Beta Functions and Feynman Diagrams, they modeled particle interactions efficiently. Credit: SciTechDaily.com" (ScitechDaily, String Theory Unravels New Pi Formula: A Quantum Leap in Mathematics) People normally think that. The pi is the ratio of the circumference circle's circumference to the circle's diameter. The Pi is a mathematical constant 3.14159..., the endless decimal number. The Pi is interesting because developers can use that decimal number to make the encryption algorithms stronger. The idea is that the encryptions program hides the message's original ASCII numbers by multiplicating those numbers with some decimal number. Or the system can add some numbers to those ASCII numbers. "Aninda Sinha (left) and Arnab Saha (right). Credit: Manu Y" (ScitechDaily, String Theory Unravels New Pi Formula: A Quantum Le...

There are always more than three actors in the real world.

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Cogito ergo sum. I think; therefore I am (René Descartes, French philosopher)

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