Fun gurilla art

"Words That Glow in the Dark
For a graffiti artist, Evan Roth has an unusual rapport with the police. Case in point: he was doing his thing on New York City's Lower East Side one night when the cops pulled up in cruisers. Instead of pulling out handcuffs, they stopped to admire his craft.
That's because Roth and his partner James Powderly are pioneers of no-mess graffiti. Drawing on Powderly's background in military robotics and Roth's expertise in architecture, they have invented new ways to leave their mark on the city without defacing it. Their latest development is called the "throwie"--a cluster of LEDs attached to a battery and small magnet. A bunch of throwies can be tossed at any iron surface to create instant graffiti. Alternatively, a tag can be spelled out in advance on a T-shaped "night writer" and slapped onto metal surfaces at improbable heights.
Dubbing themselves the Graffiti Research Lab and backed by Eyebeam, a not-for-profit dedicated to patent-free open-source technology, Roth and Powderly set their invention loose on the Internet, where it quickly developed a passionate following. Others were soon adding improvements the duo had never thought of, such as timers and on-off switches. A website sprang up selling throwie kits--much to Roth's delight. "We want to get people excited about using public spaces," he says. "And get them excited about art." --By Ta-Nehisi Coates and Carolina A. Miranda

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