Hammer Ruler Table?

I found this image of a ruler balancing on the edge of a table by a hammer and what appears to be a piece of string or rubber band. This is an illusion I canít figure out.
Does anyone think this could be replicated?

Reminds me of the old bar trick--and now physics demo--of balancing forks on a toothpick.
How can I make this?

asked by Trinity in Science | 8535 views | 11-23-2009 at 01:20 AM

One of my favorite physics tricks.
The bottom end of the hammer is in contact with the ruler. The head of the hammer is acting as a counterweight. Just enough of the ruler is in contact with the table to provide support.

This is the same principle used in many restaurant baby seats, the ones that sort of hook over the top and bottom of the table.

Get a ruler, string, and hammer and try it yourself.

answered by Graceland | 11-23-2009 at 01:26 AM

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