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Gadgets for life
GL112504 Newton's Cradle
Newtons Cradle is one of the classics from the 80's that is making a come back as a retro desk top stress reliever.
The Newtons Cradle works as follows, if you pull one ball back and release it the energy is transmitted through the 3 static balls and the last ball then swings out then back again. If you pull two balls back and release them then the last two balls swing out, etc.