Word: heating
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Dates: during 1920-1929
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...Smithsonian Institution (TIME, May 5) made a solar cooker at Mt. Vernon, Calif., which so concentrated the rays of the sun that the temperature of the oven was 175° Centigrade. Sad to say, the oil circulating system sprang a leak, soaked the insulation with oil, and the heat set fire to and destroyed the machine...
...Extreme heat is no easier than cold to fly in. The wood, fabric and glue which constitute the structure of an ordinary seaplane may yield to continuously high temperatures...
There are three exciting adventures now in progress, according to Professor Davis, which if successful will revolutionize the transformation of heat into power, which is the basis of all mechanical. engineering. The development of a steam pressure of 1200 pounds to the square inch, or over four times the maximum pressure possible a decade ago, is imminent. The use of mercury turbines which, although dangerous to the extreme, would save infinite leakage of heat is the second of these experiments. The third is a new internal combustion engine involving a water jacket which would eliminate the necessary high temperatures...
Professor Walter B. Cannon '96, George Higginson Professor of Physiology in the University, closed the symposium with a discussion of heat in its relation to biology. "Animals," he said, "have this advantage over machines: that they can control their body temperatures themselves...
Professor Cannon pointed out that warm-blooded animals, such as birds and mammals, have hair and feathers which help to maintain a fairly fixed bodily heat. Even this changes, however; in the space of twenty-four hours, a man's temperature can rise or fall 20 degrees. "And this fact," said Professor Cannon, is the greatest of all reasons against Professor Davis' new industrial day. If we got up at 3 o'clock in the morning, the day's industry would start off with a very bad four hours...