You fill a glass with water, place a card over the top, and flip it upside down. When you let go, the card stays in place, holding the water in. The Science: This is a demonstration of air pressure
Since these are interactive experiments (often created by developers like Mr.Doob or hosted on mirror sites like elgoog.im), they are not part of the standard live Google search results but can be accessed through these methods: Google Gravity (The Original "Falling" Trick): Direct Link: Google Gravity on elgoog.im Mr.Doob's Chrome Experiment "I'm Feeling Lucky" Method: On the standard Google Search page Google Gravity . Instead of hitting Enter, click the "I'm Feeling Lucky" button. This will redirect you to the interactive version. The Experience: Google Gravity Water