This "super sand" makes even toxic water safe to drink

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http://www.gizmodo.com.au/2011/06/this-super-sand-makes-even-toxic-water-safe-to-drink/

One small point — the article refers to "graphite oxide". Last hhg2t heard, graphite is a form of the element carbon. Carbon has two oxides: carbon dioxide & carbon monoxide, both of which are gasses & unlikely to form a coating on sand particles.

Volkswagen autopilot lets you drive hands-free at 80 mph!

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http://www.gizmodo.com.au/2011/06/volkswagen-autopilot-lets-you-drive-hands-free-at-80-mph/

Store your grenade in a sewing machine for safekeeping

In a similar vein, a few years ago, a friend of hhg2t moved into a house & discovered live bullets in the fire place!

http://www.gizmodo.com.au/2011/06/store-your-grenade-in-a-sewing-machine-for-safekeeping/#more-458331