Assertion: barometer's glass tube | /r/HasProperty | filled with mercury
Facets:
Source sentences:
text: Back in 1643 by Evangelista Torricelli designed the first barometer which consisted of a simple tall, glass tube filled with mercury.
text: The first makes use of a long narrow glass tube filled with mercury supported in a container of mercury, and the second makes use of an elastic disk whose size changes as a result of air pressure.
text: Barometers are used to measure atmospheric pressure, but they were created in the 17th century when an Italian mathematician named Evangelista Torricelli, a former student of Galileo’s, devised the first artificial vacuum out of a glass tube filled with mercury.