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S6:E12 - Airplane Parachutes, Solar Power, Photochromic Lenses

Airplane Parachutes, Solar Power, Photochromic Lenses

S6:E12
2009 IMDb

How do they use explosive rockets to catch crashing planes in mid-air and how do sunbathing techniques help scientists catch rays of sun? Plus, the shady secrets of sunglasses.

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