Ask the audience a question: "What happens if you turn a glass of water?" Of course, it will result! And if you press the paper to the glass and turn it over? Paper falls and water still spilled on the floor? Let's check.
Carefully cut out the paper.
Put on top of the glass.
And carefully turn over the glass. Paper stuck to the glass, the magnetization and the water does not come out. Wonders!
Comment by Professor Nicolas: "Although it is not so obvious, but in fact we are in the present ocean, only in this ocean is not water, and air, which puts pressure on all subjects, including you and me, we just already so accustomed to this pressure, which really do not notice it. When we serve a glass of water and a piece of paper is turned over, then the sheet on the one hand presses the water and on the other side (from the bottom) - air! The air pressure was more water pressure in the glass, so the paper and does not fall. "
Even more interesting experiments in the book "The ABCs of experiments by Professor Nicolas."
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