Movable pulley – Simple machines – Physics
Bike hoist pulleys A movable pulley is a way to use a pulley to make it easier to move heavy things - to get a mechanical advantage. In the picture, someone is [...]
17
08, 2017
17
08, 2017
Pulley – Simple machines – Physics
Clothesline pulley A pulley is really a kind of wheel, just as a screw is a kind of inclined plane. But pulleys are so important that people give them their own category. A pulley [...]
17
08, 2017
Simple machines – Physics
An example of a screw, a wedge, a wheel and axle, and a lever Machines are ways to make it easier to do work. Many plants and animals have evolved natural [...]
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08, 2017
Weight machines – Pulley project – Physics
Weight machines involve lots of pulleys An exercise machine is a great example of a pulley system. If you can get to a gym or a community center that has [...]
18
07, 2017
Who was Archimedes? Eureka!
Archimedes was from Syracuse, Sicily. Here you see it with Mount Etna in the background When did Archimedes live? Archimedes was born about 287 BC, so he was a little younger [...]
