Atmosférická tlaková síla a atmosférický tlak

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=3CLgN4MYcsY

Ve videu se ponoříme na dno naší atmosféry (abych příhodně parafrázoval výrok slavného italského matematika a fyzika 17. století Evangelisty Torricelliho). Díky němu totiž umíme změřit atmosférický tlak, sestrojil funkční rtuťový barometr atd. A když jsme u toho atmosférického tlaku - co to vlastně je a čím je dán? Tak to si řekneme 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