My German Empire

At the time of the headache for the defense of Alaska, a senior staff of the Sundi Command hurried in, his look is a little panic, even some words. "Mr. Vice President, the generals, just found one in the sky ... very ... strange things ..."

"Strange things?" Arnold couldn't help but confuse. "What is the strange thing, is it a German chart? Is the German developed what new bomber?" German active ME-264D high-altitude bombers and B-36 super bombers are completely crushed in all aspects, difficult What a more terrible bomber does not make? The flight height reaches 20000 meters? Is it more than 800 kilometers per hour?

"It's not a German chart, but ..." Senior staff shook his head, and the feelings were quite weird. "It is precisely that thing is outside the atmosphere, in space."

"What ?!" Everyone couldn't help but be in space? "What is it? Is the meteorite?" What is the strangeness of the meteorite? Everyone knows that the meteorite is from the asteroids, comets or stones from the space space, and they have not seen it. In the US, Bahrain, Arizona, has a large diameter of 1280 meters, a 1280m deep. Those who have been adopted by the scholars. This is a "crater", which is from 27,000 years ago, a meteorite that weighs more than 20,000 tons of meteorite rushing at the speed of 58,000 km speed. And if it is a meteorite, they say that this is already falling to the ground, or simply burys it in the atmosphere, what is big strange.

Senior staff shook his head again and explained. "It's not a meteorite, we also say it is a kind of artifact, it is to send the thing." It's too uncompristeous. If he passed the astronomical telescope, he couldn't believe this is true!

"What ?!" This is really stunned, although they are not a professional physicist, the most basic knowledge is still mastered. To empty the aircraft to space, you must generate a fast enough flight speed by huge thrust, in order to break the air resistance and overcome the gravity of the earth, soaring in space. According to different operational requirements for the spacecraft, the spacecraft is divided into the speed of the spacecraft into the first, second, and third universe. The first universe speed is also called surround speed. When the object is flying at a speed level of 7.9 kilometers per second in the Earth surface, its drop rate is consistent with the Earth's curvature, and the object will move along the circumferential track without Falling on the ground.

At present, their fastest fighter speed is 650 kilometers per hour, that is, about 181 meters / sec; actually has a speed of up to 7.9 km / sec? This is also terrible!

"Is it a German ?!" They naturally think of the Germans. "Damn, how did they do it ?!"

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At the time of Washington's high-rise, the things in the sky, the other side of the Algerian Space launch base, Jenik stood on the observation station and looked at the giant rocket next to the distant launch tower.

This rocket is not the "first-level half" rocket that is previously launched, but a new three-level rocket.

His heart is inevitable, can't help but think of the "Fire Dragon Water" during the Xia Ming Dynasty, it is the earliest multi-stage rocket in the world.

According to the Ming Dynasty military book "Wu Guizhi", the structure of the fire dragon waters is to take a five-foot long bamboo tube, and the grinding is made. A wooden faucet on a bamboo tube, another installed wooden dragon tail, bamboo tube is a dragon.

The faucet's mouth is up, and there are several rockets in the tunnel, and the rocket line is connected together, and it is taken from the holes under the leader. At the same time, two rockets are pulled in front and rear outside the dragon body, and their pharmaceutical lines are also together. Total the taller line of the Linkedone inner rocket,

The production method of fire dragon water is completely conforming to the constructor of modern multi-stage rockets. Its invention Township fully reflects the excellent creativity of ancient people. Unfortunately, the limitations of feudal society determine that this invention cannot have a lot of progress space.

From 1921, the Soviet airlines and aerospace scientists, the pioneer of the study rocket and the space of the space Qi'lkovski proposed a multi-stage rocket to provide the theoretical basis for the navigation.

In theory, the more efficient the number of multi-stage rocket grades, the higher the efficiency of the multi-stage rocket, increase its technical complexity, and the separation is too frequently increased, and the weight and spacecraft of the control mechanism will increase. The failure rate, the difficulty of recycling is also increased accordingly, resulting in a cost increase, generally multi-stage rockets to use the three-level settings.

In addition to the problem of transportation costs, the rocket uses multi-level settings because the rockets flying in the atmosphere and the engine characteristics required to fly in space (the following level is responsible for take off, emphasizing the power; the above level is responsible for acceleration, emphasizing high Biching), with the current rocket technology currently mastered, it is difficult to satisfy the two different needs (only one space company after the later generation).

"30 minutes preparation!" The big speaker on the launch field issued a shocked instruction sound, and a group of technicians quickly evacuated the launch site.

"15 minutes preparation!" The last group of technicians exited the launch site.

"10 minutes preparation ... 5 minutes preparation ... 1 minute preparation!" I saw that the penetrating tower supported the rocket on one by one, and the system equipment connected to the rocket and the rockets were also shed, and the rocket was ignited. Already entered the second phase.

"Prepare for a minute, fifty seconds, forty seconds, 30 seconds, twenty seconds!"

"Ten, nine, eight, seven ... one, ignite!"

"Ignition!" Along with the giant sound of the earth, a gorgeous flame is sprayed from the bottom of the rocket. The huge rocket towards the dazzling light and slows slowly. Strong force not only makes the rocket, but also a slight trembling in the range of more than 10 kilometers.

Yatik stared at the horizon in the field of vision until it disappeared.

"First-level propeller separation!"

"Second level propeller ignition!"

Soon there was a meteor in the sky, which was formed when the first rocket formed when he fell.

With the separation of the first-level propeller, the rocket's body reduces its own weight, the second-level rocket is successfully successfully accelerated once, and goes to his destination.