Newton's Cradle
 
Newton's Cradle
Newton's Cradle demonstrates the conservation of momentum and energy — and it's been fascinating people since it became available as a toy in the late 1960s. Interestingly, it's also credited with beginning the "executive toy" market — but trust us — you don't have to be an executive to enjoy it.
measures 7 inches by 7 inches by 6 inches

$28.00
junior version also available ($12.00)

for orders/enquiries click here or phone 617.864.8188
Joie de Vivre, Cambridge, Massachusetts