The moment of great importance sound masking. The sound, especially at night, is heard far away. You can’t scoop it up by sounding, whispering, coughing and rusting. The…
Survival in War: Sound Disguise Scout
sound
Orientation by sound
First glance may seem boring. Despite the fact that it is not easy to shocking, it can be And you should not make such a surprised face. Well,…
Measurement of distances and ranges by the sound and flash of a shot or explosion, by the linear size and angular value of the object, determining the width of the river.
The determination of distances and distances from the sound and flash of a shot or explosion is as follows. The time from the moment of flash to the…
The design, features and principle of operation of modern silencers for the sound of small arms shots manufactured in the USA.
Developing new designs of silencers for the sound of small arms fire, developers actively patent them. Each design has its own patent number. Leading in the development and…
The development of silencers for the sound of a shot, the muffler of the SVT-40 rifle, the Mauser-98K carbine and the Ingram submachine gun.
After the Second World War, interest in silencers for the sound of firearms fell, their development almost stopped. A further peak in the development of silencer designs came…
The first silencers for the sound of a gunshot, silencers Maxim, integrated silencers, silencers for the sound of a shot Bramit.
The very first mufflers that found use for silencing the sound of firearms were muzzle and multi-chamber expansion devices, in which transverse diaphragms divided the internal volume of…
Sound and electric means of signaling and giving distress signals, use of kites and flag-signals for giving distress signals.
There are special pyrotechnic firecrackers for sounding distress alerts that fire 10 seconds after they are activated. The signal of such firecrackers can be heard at a distance…