09 December 2008 ~ 2 Comments

Levers & Pulleys

Leverage. It’s the oldest trick in the book. One of the oldest tools used to accomplish more. My son just studied ’simple machines’ and guess what tool #1 was? You guessed it. The lever. A lever is a tool that’s all. But it is powerful. With a lever I can lift or move something 10 [...]

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