John Metcalfe
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Videos
Does Giving Out High Fives Make Riding the Subway Fun?
Probably not, but that didn't stop one artist in Milan from standing outside the station slapping skin all day.
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Don't Worry, the Spanish Are Already Protesting the 2020 Olympics
Artists in Madrid railed against the "destruction" of the Games with artwork made from what looks like Molotov cocktails.
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Toilet Tuesday
App Developers Turn Their Eye to Global Sanitation
Participants of the "International Sanitation Hackathon" have some promising ideas to fight disease and death caused by poor sanitation.
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Photos
An Awful Person Destroyed Golden Gate Park's 'Fairy Door'
San Francisco just got a little less whimsical.
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The Addictiveness of the U.S. Census Bracket Game Cannot Be Denied
Sixty-four cities, 64 populations to rank by size.
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The Big Fix
The Surprisingly Gentle Science Behind New York's Plan to Sterilize Its Rats
Hitting urban rodents in their reproductive systems may be the best thing to ever happen to them.
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Here's a Bicycle You Assemble From Big Sheets of Plywood
This award-winning Dutch bike snaps together like one of those plastic airplane models that kids make.
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Are London's Public Buses the New Prozac?
Taking the bus makes people feel more social and less lonely, researchers say.
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Videos
The Wu-Tang Clan Might Appreciate These Hip-Hop Street Signs
Rappers like to call out street names; New York artist Jay Shells likes to put their lyrics up at the actual intersections they mention.
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The Urban Heat Island Could Be Attracting Bugs
The hotter neighborhoods of Raleigh are awash in scale insects, an ominous indicator of how bug populations might swell in a globally warmer world.

