In the late 1700s, he devised a solution: a kind of anti-gravity chamber that he called a tourbillon, a French word meaning ‘whirlwind’. A single-axis tourbillon in motion. This gif shows two ...

We even found a pair of everyone's favorite anti-gravity lawn chairs for just $67 — some of the cheapest we've ever seen. But, of course, there's more where those finds came from. You'll find ...