Barometric pressure can be measured using a barometer, a device invented in 1643 by amongst Galileo’s students, Evangelista Torricelli (1608–1647). A barometer can be manufactured from a extensive glass tube that is definitely shut at one particular conclude. It really is stuffed with mercury and placed the wrong way up https://lukasbtncp.jts-blog.com/26727021/the-single-best-strategy-to-use-for-pressure-washing