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The Zelinsky-Kummant gas mask was the world's first gas mask [1] which had the ability to absorb a wide range of chemical warfare agents. The gas mask was developed in 1915 by Russian chemist Nikolay Zelinsky and technologist of the Triangle plant M.I. Kummant. [2] The design was later improved by I. D. Avalov and entered mass production.
Unit 731 (Japanese: 731部隊, Hepburn: Nana-san-ichi Butai), [note 1] short for Manchu Detachment 731 and also known as the Kamo Detachment [3]: 198 and the Ishii Unit, [5] was a covert biological and chemical warfare research and development unit of the Imperial Japanese Army that engaged in lethal human experimentation and biological weapons manufacturing during the Second Sino-Japanese War ...
The total number of military and civilian casualties in World War I was about 40 million: estimates range from around 15 to 22 million deaths [245] and about 23 million wounded military personnel, ranking it among the deadliest conflicts in
[10] 2.5 million masks were manufactured before being superseded. The helmet was a 50.5 cm × 48 cm (19.9 in × 18.9 in) canvas hood treated with chlorine-absorbing chemicals, fitted with a single rectangular mica eyepiece. [11] [a] It was a khaki-coloured flannel bag soaked in a solution of glycerin and sodium thiosulphate. The soldier placed ...
By late July 1915, 30 gas artillery batteries had been deployed to the German front lines, each equipped with several thousand gas shells. The use of gas was intended to dispose of the Russian garrison, which lacked adequate gas protection or masks. [2] The final assault plan called for multiple infantry units to advance after the gas had ...
What happened in the latest animal organ transplant? Slayman, who had end-stage kidney disease, received the pig kidney transplant during a four-hour surgery that took place on March 16, according ...
Earlier versions of the gas mask prior to 1915s development of the small box respirator were crude and ineffective as no troops had yet experienced poison warfare. One of the first gas masks seen in the early part of the war was the British hypo helmet, after recent failure and ineffectiveness of the black veil respirator. The helmet was ...
NYU Langone patient Aaron James underwent the first whole-eye and partial-face transplant following a near-death electrocution in 2021. Here, James is seen on Aug. 13, 2024. NYU Langone Health