Wednesday, April 6, 2011

Link roundup

1. How to make a battery out of pennies. Via.

2. MSNBC:

The Los Angeles City Attorney's office is trying a new legal maneuver to try to stamp out graffiti — it's charging 10 graffiti writers with violating unfair competition laws because they're selling works on the strength of reputations built on vandalism.
Assistant City Attorney Anne Tremblay says these graffiti writers — all associated with the MTA tagging crew — have an unfair advantage over legitimate artists because they gained notoriety through crime.
Via.

3. WebMD:
Electronic faucets may be touch-free, but they are far from germ-free. In a new study, researchers at The Johns Hopkins School of Medicine report finding higher levels of disease-carrying bacteria on hands-free faucets compared to conventional, manually operated faucets.
Via these sites.

*Buy chemistry sets at Amazon.

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