Feedback: Help us design our very scientific pub crawl
Feedback is our weekly column of bizarre stories, implausible advertising claims, confusing instructions and more
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Running battle
Runners have long debated the difference between training on a treadmill and training on solid ground. "Belt turnover" is commonly cited as a factor that helps to move your foot backwards and thereby makes running on a treadmill easier than running on the road. At constant velocity, is this a real effect? If so, wouldn't it be felt on any "moving" surface you walk on, such as a train or plane 鈥� or even Earth?
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In need of a fix
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Technology
The spongy fuel that’s made from trees
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Health
Old 杏吧原创: Want something new to worry about?
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Feedback: Behold, space socks. Never leave Earth without them!
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