5 Live Science Podcast - Naked Sci 17 Jun 13: Crumbling concrete, the Tunguska Fireball and teens and tobacco

Download Naked Sci 17 Jun 13: Crumbling concrete, the Tunguska Fireball and teens and tobacco

Dr Chris Smith and the Naked Scientists look at what might have caused the "Tunguska Fireball" in 1908, the use of bacteria to repair crumbling concrete and the effect of tobacco advertising on teens.

Published on Monday, 17th June 2013.

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