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Science teaching festival
21 - 25 November 2005
CERN, Geneva

   
 

Archimedes' Paradox

The equipment proposed, innovating in his general structure, points out the study of Archimedes principle and Stevino’s Law.

The equipment proposed, innovating in his general structure, points out the study of Archimedes principle and Stevino’s Law.

The equipment is made up of 1.70 m high Plexiglas cylinder, in which we put some water until we reach the level of 1.60 m. Two bodies are put inside the cylinder: the first is a hollow glass body, the second is a full gum body. Because of Archimedes buoyancy, they keep their balance steady when half-dipped. The top of the cylinder is hermetically sealed by a stopper where there are three air chamber valves.

First valve: to link pressure manometer of six thousand mbar capacity,
Second valve: as a connecting orifice for manual pomp,
Third valve: to discharge the pressure.
On the lower part of the cylinder there is a tap by which the air into the tube is piped through a pump. Moreover under the cylinder there is an halogen lamp that makes the phenomenon visible.

 

 
 
See movie
Contact:
Carmelo Di Somma

Institute:
I.S.I.I. "G. Marconi", Piacenza, Italy

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