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Instructional Video9:30
TED Talks

TED: What can save the rainforest? Your used cell phone | Topher White

12th - Higher Ed
The sounds of the rainforest include: the chirps of birds, the buzz of cicadas, the banter of gibbons. But in the background is the almost-always present sound of a chainsaw, from illegal loggers. Engineer Topher White shares a simple,...