Remember a few years ago when the laser weapon was very hot, someone asked how to deal with this weapon, we have a well-known expert in China gave a suggestion "smog anti-laser", when the laser weapon through the haze energy will be greatly reduced, then the power is not so large, and even because the haze is too thick to penetrate, directly in the air half of the energy and dissipated. Although this suggestion sounds a little funny, but the actual analysis is really so, the reason why the current laser weapon will have problems in rainy and foggy days is because the spread in the air has been greatly hindered, and smog is also a way to hinder it, so this suggestion can still be adopted.
And now there is an upgraded version of the smog anti-laser - dust anti-missile, what is going on? How can the dust not even be defended against missiles? This is still due to the advice given by experts at American think tanks.
Since the hottest weapon in recent years has become hypersonic missiles, and China and Russia are the only two countries with hypersonic missiles in service, North Korea has also conducted several hypersonic missile tests this year and have all been successful. It can be said that these countries have a lot of contradictions with the United States, but the United States does not have this kind of weapon to counter, and the existing air defense system can not intercept this weapon at all, at this time the United States urgently needs to solve how to resist the threat that this weapon brings to itself, in order to solve this problem, many experts in the United States have different suggestions; and recently the United States called "power" Website put forward a suggestion to the US military: the characteristics of hypersonic missiles are also weaknesses. This can be used to deal with it, you can use a weapon called "dust warhead", this weapon will produce many fine particles after exploding in the air, quickly fill the entire sky, when the hypersonic missile is flying, it will have friction collisions with these fine particles, greatly weakening kinetic energy, or producing some damage, so that it flies to half because the kinetic energy is exhausted or it does not hit the target, compared to destroying hypersonic missiles, this "area-wide killing" weapons are faster and more difficult.
To put it simply, this "dust warhead" can also be called "21st century anti-aircraft guns", the principle is similar to the anti-aircraft guns, in World War II, the principle of the anti-aircraft guns on the aircraft is to use the shells to explode in the air after a large number of metal fragments, these fragments will spread in the air hundreds of meters away, and due to the large amount of black smoke generated by the explosion in the air, the fighters can not effectively identify and dodge at this time, so that the shells can not directly hit the aircraft can also play a blow effect. The principle of this "21st century anti-aircraft gun" is similar to it, except that it explodes not metal fragments, but some finer particles that can stay at high altitudes or even in the atmosphere for tens of minutes or even hours; and considering the high speed of hypersonic missile flight, if it is likely to be too late to intercept in the middle and late stages of missile flight, the best way is to build a "dust wall" in the early stage of hypersonic missile flight, which is safer and more effective.
However, it is worth noting that these experts believe that this "dust warhead" is only suitable for intercepting hypersonic missiles carrying conventional warheads, and is not suitable for hypersonic missiles carrying nuclear weapons, the former even if the track is not successfully intercepted, the trajectory will be offset and hit other areas with limited destructive power, and hypersonic missiles equipped with nuclear weapons will cause great destructive force even if they are shifted, for this missile, it is still necessary to find a safer and more effective method. Especially for the two nuclear powers, China and Russia, it is entirely possible and capable of using hypersonic missiles carrying nuclear weapons to launch a strike against the United States.
Of course, these experts have also analyzed some ideas about using the laser weapons that the US military is now good at to intercept hypersonic missiles, and they believe that the current laser weapons of the US military are only tens of kilowatts, which is not powerful enough, even if the future development reaches the level of hundreds of kilowatts or even megawatts, it may still be impossible to intercept hypersonic missiles, because laser weapons rely on the temperature generated by high-energy lasers to cause damage, and hypersonic weapons have been flying at several times the speed of sound. In the process of friction with the air, extremely high temperatures are generated, so the thermal protection system of such weapons is very powerful and can fully resist the high temperature killing of laser weapons.
From the suggestions given by these experts in the United States, we can conclude that they have become more and more anxious in the face of hypersonic missiles between China and Russia, and even frankly admitted that their laser weapons cannot resist this weapon, and put their hopes on some new weapons, especially this "bullet screen" composed of a large number of small particles has been considered an important means of countering hypersonic missiles. For this means of defense, we may also be able to learn from the improvement of our hypersonic missiles, so that their performance has once again risen, catching the United States off guard.