Science: Incendiary Jelly

"Red fire clouds kept creeping high and the tower of the Parliament Building stuck out black against the background of the red sky. During the night we thought the whole of Tokyo had been reduced to ashes."

A Jap broadcaster thus described the havoc wrought by last fortnight's great B-29 fire raid on the Japanese capital. U.S. airmen gave much of the credit to a new type of incendiary bomb called the M-69.

The military use of fire, which goes back at least to Samson's day (he tied firebrands to the tails of 300 foxes and...

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