On the 50th anniversary of the invention of the laser, Jem Stansfield explains how they work and builds himself one. Dallas Campbell looks at the rise of Citizen Science. |
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Title: | Light, Lasers and Citizen Science | |
Air Date: | April 11, 2011 | |
Runtime: | 30 min | |
Sally : I agree with that..., but here's my thing...... when I watch a show I don't want to read i...