1. Google Gravity
Quite simply, this is Earth-bound physics “infused” into Google’s interface: with “gravity,” the visual elements you commonly find on the interface, such as the search bar, the “I’m feeing lucky” button, and everything else fall down like a stack of bricks on the bottom of the browser. You can even “pick up” and “throw” the search results at the “walls” or just simply mess with them. This is no longer implemented on Google, but you can still see how it worked through the link below.