2 Ergebnisse für: 330.042
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Senior Chemistry: Energy 1 - YouTube
http://www.youtube.com/watch?v=DIpGoOu-rt8&feature=related
Over 200 videos, reshot in HD, now available at www.chemguy.com for just a donation! This clip: Chemguy introduces the topic of chemical energetics; thermody...
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Bobby McFerrin - Don't worry Be happy - YouTube
https://www.youtube.com/watch?v=yv-Fk1PwVeU
Bobby Mcferrin - Don't worry Be happy From the album 'salute to the 1980s' Enjoy :D