Torricelli, Evangelista

Torricelli, Evangelista
definition from
Oxford Dictionary of English – https://play.google.com/store/apps/details?id=com.mobisystems.msdict.embedded.wireless.oxford.dictionaryofenglish

Torricelli, Evangelista /ˌtɒrɪˈtʃɛli /
(1608–47) , Italian mathematician and physicist. He invented the mercury barometer, with which he demonstrated that the atmosphere exerts a pressure sufficient to support a column of mercury in an inverted closed tube.