What are those metal balls that click together continuously on a office desk?

by admin on January 25, 2012

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{ 3 comments }

Russell F January 25, 2012 at 4:52 pm

It’s called Newton’s Cradle, if you wanted to buy one.

protoham January 25, 2012 at 5:05 pm

Newton’s Cradle

Unicron January 25, 2012 at 5:41 pm

Newtons cradle and it doesn’t keep going continuously.

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