Word: oxygen
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...went to work in his father's businesses, James Boyd & Brother, and National Fire Protection Co. He decided to think up a few tricks of his own. He concentrated on chemical foams which, when mixed with water, form a thick, snowy blanket of carbon dioxide bubbles, cutting off oxygen and thus smothering fires...
...autojector, a relatively simple machine, has a vessel (the "lung") in which blood is supplied with oxygen, a pump that circulates the oxygenated blood through the arteries, another pump that takes blood from the veins back to the "lung" for more oxygen. Two other dogs on whom the experiment was performed in 1939 are still alive and healthy. The autojector can also keep a dog's heart beating outside its body, has kept a decapitated dog's head alive for hours-the head cocked its ears at a noise and licked its chops when citric acid was smeared...
...Oxygen's discoverer is supposed by most English-speaking people to have been Britain's Joseph Priestley, who identified the gas in 1774. But France's Antoine Lavoisier observed the chemical properties of "air," which he later named oxygen, in 1772. Germans credit the discovery to Karl Scheele, who found oxygen independently in the same year as Priestley...
...Surprisingly, older men make excellent civil air pilots. Under high-altitude flying conditions (reduced oxygen pressure), oldsters actually stand up better than youngsters: they are less likely to faint or collapse (apparently because they have more stable cardiovascular systems), suffer less loss of memory. With glasses, McFarland believes, many pilots up to 60 can pass the strict flying vision tests; one big airline has 100 pilots over...
...Bern heard the August bombing of Hamburg left 20,000 dead. Raging fires formed an "air chimney," sucked up the oxygen, suffocating and cremating those in shelters below...