Torricelli’s mercury tube first measured atmospheric pressure
In 1643, Evangelista Torricelli used a mercury-filled glass tube to measure atmospheric pressure, creating the first barometer. He inverted a 110, 120 cm tube of mercury into a basin; a column of…









































Ashin Xavier: interesting
IO Repro: Repro test v4 after fix 2 Oct. Safe to trash.
IO Repro: Repro test v3 after fix 2 Oct. Safe to trash.
IO Repro: Repro test after fix 2 Oct. Safe to trash.