Hydrostatic Glass

The magician holds a large glass filled with liquid in his right hand and offers to show the spectators a fun physics experiment.A piece of paper is placed on the glass. The magician places the palm of his hand on the paper and turns the glass over, which is now upside down.For now, the water is not flowing. Everyone learned this in school. It is the atmospheric pressure that presses the sheet of paper against the opening of the glass and thus prevents the water from falling out. This is a basic principle of physics that everyone should know... So, so far, nothing unusual... But wait for the rest!The magician then removes the paper, the paper no longer being there, the water should fall... Miraculously, it remains frozen in the glass... Then, you count to 3... The water flows! The glass is given for examination. It's normal.- Very simple to make, no manipulation required.- Very good quality plastic glass.- Glass dimensions: 11 cm high and 7 cm in diameter.