Best Deal: Newton Cradle

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~~$8.26~~

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	Newton Cradle At Shop4Tech ; posted by suna 5871 days ago
	Use 17% off Shop4Tech Coupon PC17 [Exp. 04/30] FREE SHIPPING. Tax in CA. These little steel balls will keep you entertained all day. Pull back one or more and let them drop watching as the same number of balls swing up on the other side. The back and forth motion is a soothing experience you'll enjoy day after day. Learn about the conservation of momentum and energy.

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