caa a22 4500 386365334 CHVBK 20180307111930.0 cr unu---uuuuu 161130s1989 xx s 000 0 eng 10.1017/S0012217300015936 doi S0012217300015936 pii (NATIONALLICENCE)cambridge-10.1017/S0012217300015936 Arnold Keith University of Ottawa Pascal's Great Experiment [Elektronische Daten] [Keith Arnold] Three hundred and forty-one years ago, on Saturday September 19, 1648, at eight a.m., Blaise Pascal's Great Experiment took place. Following Pascal's explicit instructions, his brother-in-law Florin Périer took two identical glass tubes and filled them with mercury. He inverted the tubes and submerged the open end in a bowl containing an inch of mercury. Thus he set up two Torricellian baroscopes in the garden of the Minim Monastery, at the base of the Puy-de-Dôme, one of the highest mountains in central France. The height of the mercury in each tube was carefully measured and marked on the glass. The measurements, which were identical, were recorded. One device was left in place, as a control baroscope, with an observer. The other was dismantled. Copyright © Canadian Philosophical Association 1989 Dialogue Cambridge University Press 28/3(1989), 401-416 0012-2173 28:3<401 1989 28 DIA https://doi.org/10.1017/S0012217300015936 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0012217300015936 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Arnold Keith University of Ottawa NATIONALLICENCE 773 0- Dialogue Cambridge University Press 28/3(1989), 401-416 0012-2173 28:3<401 1989 28 DIA CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge