Basically three mechanisms have been used: a. Powder burning, these were the norm with shrapnel shells in WW1, and continued with smoke shells until at most a few decades ago. b. Mechanical time, appeared in WW1 and…
Basically three mechanisms have been used: a. Powder burning, these were the norm with shrapnel shells in WW1, and continued with smoke shells until at most a few decades ago. b. Mechanical time, appeared in WW1 and…