Facing Poison Gas, 1915
One idea to repel gas attacks: fans to blow the gas away. A dubious invention, but perhaps a reasonable idea in the days before gas masks (the flannel pads over nose and mouth were an earlyand for a while the onlydefense against gas). Credit: Image:
One idea to repel gas attacks: fans to blow the gas away. A dubious invention, but perhaps a reasonable idea in the days before gas masks (the flannel pads over nose and mouth were an early—and for a while the only—defense against gas). Credit: Image: Scientific American, July 31, 1915AdvertisementEditor’s note (4/2/2017): This week marks the 100-year anniversary of the U.S. entry into the First World War. Scientific American, founded in 1845, spent the war years covering the m...

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