 Muna 1643 Evangelista Torricelli akagadzira yekutanga chii?Muna 1643, Evangelista Torricelli, nyanzvi yekuItaly yefizikisi uye masvomhu, akagadzira yekutanga mercury barometer. Barometer barometer mudziyo unoshandiswa kuyera mhepo yemhepo. Kugadzirwa kwaTorricelli kwakaratidza musimboti wekuti mhepo yekumanikidza inogona kutsigira koramu yemekiyuri muchubhu yakavharwa-yakavharwa. Chigadzirwa ichi chakaisa hwaro hwekunzwisisa kumanikidzwa kwemhepo uye chakabatsira mukuvandudzwa kwemeteorology uye kudzidza kwemagasi. 