Last updated on April 18, 2014 at 21:21 EDT
Particle Tracks in Aerogel
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Particle Tracks in Aerogel

January 24, 2006
In an experiment using a special air gun, particles are shot into aerogel at high velocities. Closeup of particles that have been captured in aerogel are shown here. The particles leave a carrot-shaped trail in the aerogel.