This is because the internal environment of a submarine is different from that of space, with its own challenges and limitations.
In a submarine, one faces many challenges and difficulties.
Because submarines have to move in the deep sea, the depth of seawater often exceeds several hundred meters, so the water pressure is extremely high. Without special measures, the air inside the submarine will be compressed into a
The space inside the submarine is very small, people often have to work, live and rest in a cramped space.
People in submarines will easily experience fatigue and psychological stress, leading to many unpleasant physical symptoms such as headaches, dizziness, and chest tightness.
Nuclear-powered submarines typically store a 90-day supply of food, so they can stay underwater for three months.
Why are submarines often painted black?
Black reflects the least amount of light, helping to increase the submarine’s stealth ability, not only on the surface but also underwater.
Submarines also often surface at night, because this is an extremely difficult time to detect.
Additionally, most submarines today are black, not because of the choice of paint color but because the equipment uses anti-echo panels.
What’s special about nuclear submarines?
A nuclear submarine is a type of submarine that operates using energy generated from a nuclear reaction inside the ship’s Nuclear Reactor.
Nuclear submarines can operate continuously for long periods of time in the ocean because they no longer depend on the air thanks to nuclear propulsion.
Nuclear submarines are also larger in size and equipped with more firepower.
In the world, there are currently only 6 countries that own nuclear submarines, including: America (68 nuclear submarines/68 submarines, of which 14 are SSBN ships), Russia (29/49 with 11 SSBN ships), China
One of the US Navy’s newest nuclear submarines is the Virginia-class fast attack submarine.
They are equipped with four torpedo tubes, Tomahawk cruise missiles and Harpoon anti-ship missiles.
