Massachusetts Institute of Technology
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Cloud Chamber

Subatomic particles such as cosmic ray muons, alpha particles, and high energy electrons are striking our bodies all the time. In the cloud chamber, these particles ionize air molecules, creating delicate cloud trails by condensing supersaturated alcohol vapor. This is similar to the way condensation trails are formed in the sky behind airplanes.

This is about as close as you'll ever get to seeing subatomic particles with your own eyes...

Comments (2)

I’m curious what those trails would look like with a neodymium magnet sitting in the middle.

Posted 5 years by bob4664


Posted 3 years by Anonymous 00:00:03

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MIT Department of Physics Technical Services Group

MIT Department of Physics Technical Services Group

Category: Science | Updated over 1 year ago

June 12, 2009 15:38
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