Other methods have been proposed, including painting asteroids, installing solar sails, illuminating mirror arrays, and even sending people to plant nuclear bombs on asteroids. Pen & Fun & Pavilion www.biquge.info

However, these solutions are not as simple as they seem, it is not difficult to apply a layer of paint to the surface of the asteroid, and it is possible to directly launch the barrel filled with paint as a cannonball and hit the asteroid, the effect of spraying paint can be achieved, the problem is that the thrust generated by this method is pitiful, and it will take years to change the orbit of the asteroid.

The same is true for reflector irradiation, which does not have enough time to change the asteroid's orbit at all.

The solar sail can be effective in a short time, even if the thrust generated by the solar sail is very good, but the impact of the cosmic celestial body is really a fraction of a millimeter, as long as a little external force is applied to the asteroid, its orbit will be greatly offset, enough to push the asteroid away from the impact orbit.

However, these asteroids are traveling at speeds of up to 200 kilometers per second, and they are still accelerating, and it is impossible for any kind of aircraft built by humans to catch up with the speeding asteroids.

Sending people to an asteroid to plant a nuclear bomb is simply an impossible task.

It is not impossible to launch a solar sail head-on, but at a relative speed of more than 200 kilometers per second, no matter how high the mechanical strength of a man-made object, the result of hitting an asteroid is similar to that of an asteroid hitting the earth, and it will definitely explode on the spot like a cannonball.

At this point in the discussion, the room suddenly fell into an eerie silence, and one of the participating experts woke up from a dream: "Can an explosion push away an asteroid?" ”

"It should work." Another expert pulled out his phone and quickly calculated, "If an object of ten grams hits the side of an asteroid at five times the speed of sound...... Suppose the mass of the asteroid is 100,000 tons...... Ideally, a displacement of about 0.008 meters per second can be generated...... Then the displacement in one day is 700 meters, and the displacement in a month is 21 kilometers! ”

"21 kilometers is too little, and a hundred times more expansion is not enough."

"Then increase the number of hits!"

"Ladies and gentlemen, we just need to consider the feasibility, and leave it to the politicians to decide what to do."

"So what are we waiting for?"

The meeting came to an abrupt end, and the results of the meeting were quickly communicated to the various countries, and the five major powers immediately held feasibility discussions, and then communicated with each other to finalize the interception plan.

To complete the program, the United States and Russia each contributed an electromagnetic cannon that had not yet been installed, and the shell was a 12.7 mm warhead -- note that it was a warhead, not a bullet, and there was no air resistance in the universe anyway, as long as it could be launched from an electromagnetic orbit, no matter what shape the warhead was, it would not affect the trajectory.

In addition to the warheads obtained from the military factory, a large number of bearing steel balls of about ten grams were also obtained to serve as ammunition.

Electromagnetic guns need enough power to drive, and if you use traditional solar panels to provide electricity, the area required is too large, and just sending the panels into space will take up a considerable part of the capacity, which is the result that you can't afford to do in any case.

To this end, China has contributed two small liquid metal reactors.

The military reactor has been kept secret, and the intelligence services of the United States and Russia have only learned from the side that China may have such a reactor, but have never received conclusive evidence.

If it weren't for the fact that he couldn't find a more suitable reactor, the first brother would definitely refuse to bleed.

In fact, the microreactor is the most suitable reactor for aerospace engineering, but the output power of the microreactor is too low, and the electromagnetic cannon cannot be brought at all, and the number of multi-reactor linkage is too much, and the time is too busy to make it, so it can only retreat and get two liquid metal reactors on top.

The electromagnetic cannon must be mounted on a stable weapon platform, and there are only two most stable space platforms at present, one is the International Space Station and the other is the Tiangong.

The astronauts stationed on the space station immediately took action to prepare for the installation, and top experts from various countries designed the connection device between the railgun and the space station as quickly as possible.

However, the space station is not a space warship, and it is found that the vibration and recoil generated by the continuous launch of the electromagnetic cannon will not only affect the normal attitude of the space station, but also may affect the overall structure of the space station, thus threatening the safety of the space station!

The final conclusion is that the electromagnetic cannon cannot be installed on the space station in any case!

For this reason, the five major powers once again launched urgent consultations, but only China, the United States, and Russia spoke at the meeting, and Britain and France, which were already yesterday's yellow flowers, closed their mouths very sensibly.

The result of the discussion is that it is necessary to customize a weapon platform for the electromagnetic cannon, and countries and regions around the world that have space capabilities use disposable spacecraft, which cannot be used as a weapon platform at all, and only the Yankees have a unique space shuttle.

The Americans had to pull the long-retired space shuttle out of the museum and call in technicians for comprehensive maintenance as quickly as possible, not asking how many times the shuttle could be used, just a one-time successful launch, even if it was thrown into space directly after the mission was over.

Fearing that the space shuttle might crash during launch, the United States pulled out four retired space shuttles in one go, but according to the launch plan, these retired space shuttles will not carry important materials such as electromagnetic guns or reactors when they are launched, so as to avoid accidents during launch.

That is, the combination of the Space Shuttle with a reactor and an electromagnetic cannon must be carried out in space.

Although technicians from various countries have tried their best to use the whole storage as much as possible to minimize the difficulty of the combination, the combination of the three is still not a problem that can be solved by connecting wires, and must be guided by professionals on site.

To this end, countries urgently summoned experts in nuclear technology and weapons technology to conduct assault space training for those who were in better physical condition.

At this time, I can't care about any conditions and conditions, so I can only pull out the tall one among the short people, and solve the problem of whether there is one or not.

Whether or not the asteroid swarm can be stopped has been linked to the survival of all mankind, and under this premise, the safety of individuals is completely not considered by the upper echelons, anyway, no matter which country, there is no shortage of patriots who are willing to sacrifice their lives for the country.

The combination of the space shuttle and the electromagnetic gun, and how to place the electromagnetic gun and the reactor, all need time to solve, but time waits for no one, although the weapon platform has not yet been launched, and other materials have been in place one by one after more than a week of intense preparations, and they have begun to be sent to space one after another.

Every day since then, we have heard the news of the launch of launch vehicles, and the launch vehicles of China, the United States and Russia alone account for one-third of the total number of launches.

The launch process was not all smooth sailing, due to the rush and its own quality problems, India and Japan each had a rocket explode during the launch process, destroying a lot of materials, fortunately, the carrying capacity of these two rockets is not strong, and the redundancy of materials has been taken into account when formulating the launch plan, so it has not affected the normal implementation of the plan. (To be continued.) )