The #VansChallenge is the latest viral internet challenge, and it's got people all over the world throwing their Vans shoes in the air and filming them as they come back down to Earth, all to test a theory. It all started on Saturday, when Twitter user @Ibelievthehype posted a video to Twitter of her chucking her checkered Vans in the air, saying "Did you know it doesn’t matter how you throw your Vans they will land facing up?" The shoes in the vid do indeed land face up. The video garnered 10.2 million views, and the Vans Challenge was born. Isaac Newton would be proud -- thousands of people have since filmed themselves throwing their shoes in the air, in what has become somewhat of an impromptu, worldwide physics experiment. In most of the videos, even when multiple pairs are thrown at once, the Vans shoe lands sole-down. In some videos, even when it seems certain the shoe has not landed upright, it appears to be moved by an invisible hand to make it upright again. Read more: ...