| Have a "smashing" good time converting mechanical energy to heat. |
Bet you never knew converting mechanical energy to heat energy could be so - in a word - entertaining.
Merely striking our two precision machined balls together will create enough heat at the point of contact to burn a hole in a sheet of paper. You'll see no flame, but a charred hole appears instantly along with a smell of burning paper.
Why? The First Law of Thermodynamics states, "Energy can neither be created nor destroyed." In other words, it merely changes its form - in this case, from mechanical energy (striking two balls together) to heat (evidenced by the hole burned in the paper).
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How to use:
1. Put on safety glasses.
2. Have a helper hold a piece of paper in the air.
3. Hold a ball in each hand. From opposite directions, strike the paper with both balls. The balls should collide head-on with enough force to burn a hole in the paper.
4. If no burn hole appears, try again. The balls must move quickly and must hit each other squarely.
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| Kit includes: |
| •Two precision machined 454 gram balls, hardened with chrome-plated steel. |
| •Instructions with historical perspective. |
| Meets National Science Education Standards and Benchmarks for Science Literacy! |
