Build Your Own Chain Reaction Machines by Paul Long
Author:Paul Long
Language: eng
Format: epub
Publisher: Quarry Books
Published: 2018-01-15T00:00:00+00:00
Engineering Know-How
The released marbles cause the tipping over of the weight. Gravity causes the weight to fall, which pulls on the rack (straight gear). The movement of the rack causes the pinion gear to rotate 90 degrees. If the flagpole were longer or heavier, you would need a heavier weight or a bigger pinion gear to raise it.
MARBLE LAUNCHER
There are so many ways to launch a marble. Catapults and slingshots, to name two. This marble launcher is more like an enclosed crossbow, just without the bow (or is it the cross?).
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