In this episode, scientists from DARPA investigate whether a lethal new kind of explosive threatens America's security. Intro theme and music by Kevin MacLeod. Creative Commons licensed audio from freesound.iua.upf.edu includes sounds by ljudman and anton.

Promoting Personal Safety and National Security: New Solutions 2009

Taking inspiration from trees, scientists have developed a battery made from a sliver of wood coated with tin that shows promise for becoming a tiny, long-lasting, efficient and environmentally friendly energy source. Their report on the device — 1,000 times thinner than a sheet of paper — appears in the journal Nano Letters.

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Promoting Personal Safety and National Security: New Solutions 2009

Promoting Personal Safety and National Security: New Solutions 2009