Well, this clever trick of course! A clever balancing act and physics will allow you to balance a hammer on a ruler on the very edge! Take a look at the pic! found it here

How many holes in the floor did this one take?
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Well, this clever trick of course! A clever balancing act and physics will allow you to balance a hammer on a ruler on the very edge! Take a look at the pic! found it here

How many holes in the floor did this one take?
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