How To Break A Ruler With A Newspaper
Dr. Tatiana Erukhimova demonstrates how you can break a ruler by using a basic physics principle.
Dr. Tatiana Erukhimova demonstrates how atmospheric pressure - actually the viscosity (stickyness or thickness) of the air - can break a ruler with physics. When spreading out the newspaper on top of the ruler, Dr. Tatiana basically creates a large suction cup by preventing air from flowing underneath.
When she strikes the ruler, it tries to lift up against the newspaper, but because the air can’t flow fast enough into the space between the table and the newspaper, most of it pushes down on the newspaper (and the ruler).
All that weight on the ruler causes it to snap.
Tatiana Erukhimova received a Ph.D. in Physics from the Russian Academy of Sciences in 1999.
She is Professor at the Department of Physics & Astronomy at the Texas A&M University.
Music: "That's What It Takes (Instrumental) by Neffex.
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