Napalm Napalm Napalm is an incendiary mixture of a gelling agent and a volatile petrochemical (usually gasoline (petrol) or diesel fuel). The title is a portmanteau of the names of two of the constituents of the original thickening and gelling agents: co-precipitated aluminium salts of naphthenic and palmitic acids. Napalm B is the more modern version of napalm (utilizing styrene derivatives) and, although distinctly different in its chemical composition, is often referred to simply as "napalm". Napalm was originally developed in 1942 in a secret laboratory at Harvard University, by a team led by chemist Louis Fieser under the United States
Incendiary balloon Incendiary balloon An incendiary balloon (or balloon bomb) is a balloon inflated with a lighter than air gas such as hot air, hydrogen, or helium, that has a bomb, incendiary device, or Molotov cocktail attached. The balloon is carried by the prevailing winds to the target area, where it falls or releases its payload. In 1792, Joseph-Michel Montgolfier proposed using balloons to drop bombs on British forces and ships in Toulon. In 1807, Denmark attempted to construct a hand-propelled dirigible that would bomb British ships blockading Copenhagen from the air. In 1846 a British board rejected as impractical a bombing