These homemade Fig Newtons are the best way to relive your childhood. Full recipe: http://dlsh.it/rPT1cn9 | Delish

Newton’s Cradle is a device that demonstrates the principles of conservation of momentum and energy using a series of suspended metal balls. When one ball on the end is lifted and released, it strikes the stationary balls, and the impact is transmitted through the line, causing the ball on the opposite end to swing out with nearly equal force. The device illustrates how energy and momentum are transferred through a system with minimal loss, assuming an ideal (frictionless and perfectly elastic)