Michael Hoffmann

Aug. 17, 2012

Solar Toilet Disinfects Waste, Makes Hydrogen Fuel

Caltech's solar toilet took top prize in the Reinvent the Toilet Challenge.

toilet, sewage, human waste, feces, wastewater, health, gates foundation, developing world, public health

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Michael Pollan Talks Plants and Food

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Happy National Moth Week!

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Mystery Box

The Myth of the Woolly Bear

\tLegend holds that the length of a woolly bear caterpillar’s color bands can be used to forecast how severe the winter weather will be. The myth dates back to colonial American folklore but was popularized by a 1948 study. SciFri finds out if there’s any truth to the lore, and what the caterpillar’s fuzzy bristles are really used for.

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