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How Do They Do It?
Series 6 Episode 12: Airplane Parachutes; Create Solar Power; Photochromic LensesHow are explosive rockets used to catch crashing planes in mid-air, and how do old sunbathing techniques help scientists catch rays of sun? Plus, the secrets of sunglasses.
- Category
- Documentary / Educational / Science
- Original air date
- 25/08/2009
Cast and crew