How many years can the resources of the Mars Permanent Resettlement Plan be used?

Because there is no perfect technology yet, the earth’s escape velocity, which is to say the first cosmic velocity, can only fly out of the earth if it reaches this speed. The atmosphere of Mars is lower than that of the earth, and the atmospheric pressure is also smaller, but it still needs to Reaching about half of the speed of the first universe, imagine that carrying a small spacecraft and a small satellite requires hundreds of tons of fuel, and it takes more than seven months to fly to Mars. Double backup requires double thrust. Currently, the world's most powerful The rocket booster with cattle thrust is the "Saturn V" rocket used by the United States to land on the moon. The designer is the German scientist von Braun. Now that he is dead, the Saturn V has never been used. They are all small boosters and space shuttles.

With China’s technology, it is no problem to send at most two spaceships. The two spaceships are about less than 30 tons per ***, but sending one spaceship and two flights of fuel will be burned here. After a flight of fuel to the sky, the remaining fuel is half of the one-way fuel. Assuming it is a return trip, how much is needed to fly to the sky? The one-way boost force is five to six hundred tons of thrust. This is Chinese technology. If you add a return trip, you need to add about two hundred tons of fuel. The technology cannot reach it. The United States and Russia can achieve it. Well, now let’s talk about the one-way trip——

When flying out, the rays cause the fuel molecular structure to dissociate from the magnetic field. The heat generated by the electromagnetic waves will inevitably produce unknown temperatures. ***Vibration at the same shock wave frequency will produce ***vibration. Infrasound waves can also hurt people. The occurrence of resonance will cause the fuel tank to disintegrate. If the flight lasts for more than 7 months, who can guarantee that these factors will not occur?

Second, generally the lowest level of boost force, that is, the first-stage main thrust fuel, is between minus one and two hundred degrees. For example, liquid oxygen and liquid hydrogen have very low temperatures in space, but The spacecraft is without any protective layer and is exposed to more than 100 degrees of direct sunlight and more than 100 degrees of minus 100 degrees in the shade. The liquid hydrogen and oxygen in this fuel tank will expand and may even explode. After all, it is flammable. Seven months, no one dares to guarantee it

Third, the temperature of Mars is minus 68 degrees Celsius. Although the atmosphere is only 50 kilometers, and the escape velocity is also very low, half less than that of the Earth, fuel ignition is a problem. Because 95% of the air there is carbon dioxide

Fourth, landing requires a deceleration device. The huge shock wave will deform or even rupture the liquid oxygen and liquid hydrogen tanks, and sparks will appear on the hard Martian ground. It is also possible to cause an explosion

Fifth, there is no standard launch pad for a simple spacecraft to go there. It is different from the moon, because the moon can have two spacecrafts, one flying around the moon and one landing in the vacuum. It can easily take off and rendezvous with the receiving spacecraft on the orbital surface

Sixth, Mars has two satellites, and the law of locked tides will bring back those who leave Mars from time to time, because each of Phobos It takes four hours to circle Mars. If you don't follow the satellite orbit and use gravitational acceleration, you will either be attracted by the satellite's gravity or fall down again. Because Phobos is a satellite with an atmosphere, its gravity is also greater than that of the moon, and the earth The satellite of the Moon is very far away from the earth, and Phobos is as far away from Mars as an aircraft carrier flying over the earth.

There are many other reasons. I will not explain them one by one here. After all, this is a rigorous question. I can only say so much about the problem, no matter how detailed the data is, I hope you will love science more, strive to highlight your achievements as soon as possible, and become the center of attention for the world and country, as well as for your own nation, family, and even for yourself. High-tech talents are therefore a nonsense plan, unless you accelerate research when you become the boss