They have reported Japanese militarism, atrocities, the absurdities of Emperor worship, the inflammability of Japan's paper cities, the inability of Japanese industry to .
It also has important military use in lightweight bomb casings and (because of the inflammability which once made it invaluable to photographers as flashlight powder) in parachute .
Helium is an inert gas of great light ness and non-inflammability, present in the air in minute quantity.