Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.


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Assistant Editor: Colin Lecher | Email
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Contributing Writers:
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Shaunacy Ferro | Email
Some of those slides must overlap parts of the sky. I hope they do a comparison looking for astroids. May indicate an orbit that can he forecast into the future. Could be first indication of a future threat to earth that has not been identified previously.