Talks Tagged > Invention
Showing 73 - 76 of 76
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William Kamkwamba: How I harnessed the wind
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05:59 Posted: Sep 2009
Comments 244 Emailed 1524
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Wolfgang Kessling: How to air-condition outdoor spaces
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11:35 Posted: Jun 2012
Comments 56 Emailed 7
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Woody Norris: Hypersonic sound and other inventions
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13:49 Posted: Jan 2009
Comments 134 Emailed 1364
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Zach Kaplan and Keith Schacht demo toys from the future
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15:46 Posted: Oct 2008
Comments 38 Emailed 299