Pronunciation of the English word kinetic.
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1. | Temperature is mean kinetic energy, not energy over volume; compression heats a gas by doing work on it; and a gas that expands without doing work does not cool. | |
2. | As an atom approaches the barycenter of a forming star, it trades potential for kinetic energy: the stuff of heat. | |
3. | Good conductors of heat are usually good conductors of electricity, but that puts the causal relation backwards. Conduction-band electrons can't help but transport kinetic energy, which--randomized--is heat. Putting heat before electricity is reasonable only because of the rarity of materials like diamond that conduct heat via the quasi-particles called phonons, which are communicable crystal-lattice vibrations. | |
4. | Scott Weaver's "Rolling through the Bay" is a kinetic sculpture made from more than 100,000 toothpicks, over a period of 35 years. |