The most 'weird' bullets in world gun history
Guns are an impressive invention of mankind and throughout the entire history of development, there have been many peculiar guns with unique bullets that have been used.Firecrackers use straight anti-current engines
In recent years, modern military technology is aiming at different methods of using straight-line jet engine (Ramjet Engine).Vietnam makes heat-resistant paints for rocket engines
Scientists at the Institute of Technology (General Department of Defense Industry) have researched to perfect the technology of manufacturing heat-resistant paint used for