The light from sparks generated by grinding steel was refracted by water, reflected by a mirror, and then refracted again as it exited the tank.

The light from sparks generated by grinding steel was refracted by water, reflected by a mirror, and then refracted again as it exited the tank.

By Kelsey Spurr, Wayne Russell, Aaron Porras, Lotem Sella, Paul Sweazey for Spring 2013 Team Second.
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