This "Impossible Screw" Has Mysterious Behavioral Properties

All of us understand how screws and bolts work. So imagine if you encountered a screw that you could advance–but not retract. I.e. you can screw it in, but it won’t unscrew…unless you turn it from the other side. If you’re confused by what I mean, watch this “impossible screw” video and see if you can figure out what the hell is going on, before he reveals the secret:

I can’t think of any practical applications, beyond bringing this to a bar and using it to trick people into buying you drinks.


Source: core77

Rating This "Impossible Screw" Has Mysterious Behavioral Properties is 5.0 / 5 Votes: 4
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