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What weapon was developed in 1942 in a secret laboratory at Harvard University?​

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Answer:

Napalm is a mixture of a thickening/gelling agent and petroleum or a similar fuel for use in an incendiary device. It was initially used against buildings, and later was used primarily as an anti-personnel weapon that sticks to skin and causes severe burns when on fire. Napalm was developed in 1942, in a secret laboratory at Harvard University in Massachusetts, by a team led by chemist Louis Fieser.[1] Its first recorded use was in the European theatre of war; it was used extensively in incendiary attacks on Japanese cities.

"Napalm" is a combination of the names of two of the constituents of the gelling agent: naphthenic acid and palmitic acid. "Napalm B" is the more modern version of napalm and, although distinctly different in its chemical composition, it is often referred to simply as "napalm".[2]

In 1980, the United Nations declared "the gel's use on concentrations of civilians a war crime"

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