Physics-based tricks and scams

[jack action]

I'm starting this thread about how people can be tricked or deceived with some basic physics.

Here's one call the pendulum swindle found on Facebook:

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Now let's see your favorite tricks based on physics! You may help someone save a lot of money!

 

[gmax137]

That's a good one. Especially when the voice-over calls them "punters."

 

[DrClaude]

 

[256bits]

The rule under the newspaper flat on the table - you break your ruler.
Or the swipe the table cloth out from under the dining set ( break the china!)

I can't seem to find the tie the ring on the end of the rope, by dropping it down the rope.
It's simple and NO kid will ever be not fascinated.