The return of tensions between major technological nations is accompanied by intensive research to develop new technologies or apply technologies developed during the 30 years of relative peace following the end of the Cold War. In the first part of this article, we dealt with quantum applications, electromagnetism, artificial intelligence, nano-technologies as well as directed energy weapons. There are still 5 major technologies to study to complete this panel of 10 technologies that will revolutionize military action in the years to come.
The speed of aircraft and missiles had been a major issue in the 50s and 60s, a period during which research enabled combat aircraft to reach and exceed mach 2 speed. But from the 70s, the aeronautical technology encountered two difficulties comparable to that which prevailed during the race through the sound barrier. Indeed, beyond Mach 2,8, the friction of air on aircraft causes a significant increase in the heat of the front surfaces, gradually creating a plasma surrounding the plane and opaque to electromagnetic waves. In addition, from mach 3, conventional reactors can no longer slow down the air flow to control fuel combustion, making the thermal reaction very unstable, with a significant risk of explosion.
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