CHICAGO — How does a lock work?
The standard lock is called a ‘pin tumbler lock’.
So, those pins of different length are what prevents the lock from opening without the proper key. When you can slide a key into a keyhole but it doesn’t turn that’s because some of those pins didn’t drop into place.
The WGN Morning News crew watch in fascination as a door is unlocked from the inside. They also discuss a Australian tongue choir, physical Monopoly, and root vases.
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