
THE EXPERIMENT CONTINUES

Check slabovidimym acoustic signals is of great practical importance. This: fault diagnosis of internal combustion engines; search for places of leakage of gas from the damaged pipeline networks; early detection of diseases of internal organs; organization of acoustic communication and alarm systems; capture seismography, noise of different origin, including sounds of nature (birds singing, for example) and many more.
Since the emergence of tanks as a kind of weapon in their design a special mark was put “duel armor and shells”. By the end of the Second world war, showed a certain balance. One of the original criteria in the development of new war machines was the requirement that the tank armor is not penetrated by armor-piercing projectiles of his own gun. In this approach, and were all post-war tanks of the so-called first generation.