An account of the experiment reached Paris the next year and came to the notice of Pascal. He could not try the experiment until 1646 when glass tubes were available to him. Pascal reasoned that if the atmosphere supported the mercury column, the height of the column should be lessened when the apparatus was carried to a high altitude.
©1929 by Iowa State Teachers College
Science Bulletin: Vol. 1:
4, Article 9.
Available at: https://scholarworks.uni.edu/science_bulletin/vol1/iss4/9