University of Maryland
University of Maryland: Boiling Water by Pumping
A page from the University of Maryland Physics Lecture Demonstration Facility. Provides directions for a teacher demonstration which utilizes a Bell jar and vacuum pump to show the dependency of boiling point upon pressure. Shows...
University of Virginia
University of Virginia: Bell Jar Demonstration
A bell jar is evacuated to show the properties of a vacuum and air pressure. Pictures and a description of how to perform the demonstration are given.
The National Gallery (UK)
The National Gallery: Experiment on a Bird in the Air Pump
As part of a larger exhibit on science and the history of scientific instruments, this site examines a painting by Joseph Wright and its connection to the scientific studies of the vacuum. The painting, which is accompanied by a...