欧博allbetWhat if Earth Lost Gravity for Five Second

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Cote, Andrew. "What Would Happen if Oxygen Were to Disappear for Five Seconds?" Slate. March 19, 2013. (May 10, 2015)

Domanico, Anthony. "What would happen to you if the Earth stopped spinning?" CNet. June 16, 2014. (May 10, 2015)

Gannon, Megan. "Falling on the Moon: How Much Gravity Do Astronauts Really Need?" Space.com. Sept. 4, 2014. (May 10, 2015)

NASA. "Learning more about our Sun." (May 10, 2015)

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