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The wonder I am doing is How do Locks Work, #431. In this wonder I learned about to different locks. the first lock I learned about was the Combination Lock, the way this works is When youturn the dial it turns a series of wheels. These wheels have a tab called a "wheel fly. When the tabs line up the lock opens. The other lock I learned about is the pin-and-tumbler lock (or key lock). The way these work is they have several spring loaded pins in a series of cylenders, when the proper cylenders are pushed it unlocks.
combination/set of numbers
valuble/exspensive and important
Article posted March 12, 2012 at 09:44 AM •
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