OCR Text |
Show At What Temperature Water Bolls. Water boils at different temperatures, tempera-tures, according to tho clovatlon ahovo the sea level. In London water bolls practically at 212 degrees Fahrenheit; In Munich, Germany, at degrees; de-grees; in the City of Mexico, at 200 degrees, and in tho Himalayas, at nn elevation of 18,000 feet above tho level lev-el of tho sea, at ISO degrees. Those differences nro caused by the varying vary-ing pressure of tho atmosphere at these points. In London the whole weight of the nir has to be overcome. In Mexico, 7.000 feet nhovo tho sea, there Is 7,000 tcet less of atmosphere to be resisted. Consequently less heat Is required and boiling takes placo at a lower temperature. |