<http://schema.org/description>
"Petit replicates Torricelli&amp;amp;#39;s barometer experiment at Rouen, France. Torricelli devised the earliest form of the instrument in 1643. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mediastorehouse.com/torricellis-barometer/print/4359798.html>