How Do They Do It? S6E12 Airplane Parachutes, Solar Power, Photochromic Lenses
How Do They Do It? Season 6 Episode 12 Online – 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.
Seasons and Episodes
List of episodes and seasons online:
