P. 3984. Estimate how much does the height of the mercury column change in Torricelli's experiment
a) if the device is brought from the room of tempereture to the balcony where the temperature is ;
b) if the device is kept in the room but some drops of water is inserted into the tube.
(In his famous experiment Torricelli created a metre long tube sealed at the top end, filled it with mercury, and set it vertically into a basin of mercury. The column of mercury fell to about 76 cm.)
Deadline expired on 11 June 2007.