Bimetallic Jumping Disc and Heat Transfer | Science Project

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This video shows how a bimetallic jumping disc works. A bimetallic disc is made from two different metals with slightly different coefficients of thermal expansion. The disc is slightly bowed, and it "snaps" through to the opposite position when it heats up or cools down past a certain point. In this project, you will learn about heat transfer and find out how the temperature of its surroundings affects the behavior of the jumping disc.

  1. Science Buddies
  2. science
  3. jumping disc
  4. bimetallic
  5. heat transfer
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We had those back in the '80s. You're supposed to rub it vigorously between thumb and forefinger for a while and it will typically heat up enough to pop it.

Showtime-ih
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Hi were can I get one of these from 👏🏻👍🏻🤗😘😍

mondelaziz
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how can I make one that pop exactly on 197 c degree?

zlofah