一個沒有地心吸力的地帶

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美國加州有一個地心吸力不存在的地帶
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http://www.mysteryspot.com/index.html
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0 |' ?9 ?) m' Qtvb now,tvbnow,bttvbThe Mystery Spot is an area about 150 feet in diameter located in the redwood forests just outside of Santa Cruz, California. Within the Mystery Spot you will be baffled as the laws of physics and gravity cease to exist.

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I try to attached photos here. If you visit their website, you can find their photo gallery.5.39.217.77:8898: Y/ @7 N3 |9 f& I  K
This place actually existing. It has something to do with the magnetic field of the Earth. For some reason, the magnetic feild got screwed up and skew the gravity.