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1881年7月,美国总统詹姆斯加菲尔德在华盛顿车站遇刺,身受重伤,急需手术。但正是夏天,温度高达40℃。医生要求将温度降到30℃以下,才能保障手术成功。美国政府把这个艰巨的任务交给了工程师谢多。谢多曾在矿山工作,知道怎样稀释空气,降低煤矿巷道内的瓦斯浓度。他想,既然空气经过压缩后会释放热量,那么压缩后的空气恢复到正常状态,会不会吸收热量呢?实验结果表明完全可以,于是谢多给总统病房安装还原压缩空气的机械装置,成功地使室内气温从37℃降到25℃。他成为世界上第一台空调发明者,为人类开创了崭新的生活。
In July 1881, U.S. President James Garfield was assassinated at the Washington Station, seriously injured and in urgent need of surgery. But it is summer, the temperature up to 40 ℃. Doctors require the temperature dropped below 30 ℃, in order to protect the success of surgery. The U.S. government handed over this arduous task to the engineer Cheyenne. She has worked in mines and knows how to dilute the air and reduce the gas concentration in coal mine tunnels. He thought that since the air will be compressed after the release of heat, then the compressed air back to normal, will not absorb heat? Experimental results show that it is entirely possible, so thank you to the Presidential ward to restore compressed air mechanical devices, the success of To indoor temperature from 37 ℃ to 25 ℃. He became the world’s first inventor of air conditioners, creating a new life for mankind.