Balancing Ball Newton's Cradles are great for home of the office desk! This 6" tall hypnotizing toy will keep you amused for hours. Newton's Cradle of an odd numb er of identical steel balls each suspended by a bifilar suspension from a sturdy frame. The balls are aligned along a horizontal line, just touching. When the ball on one end is pulled aside and allowed to swing as a pendulum,it hits th e next ball. The outcome is fascinating, the one ball on the far end is knocked away from the others with the same speed as the first ball had initially and all of the other balls remain nearly at rest !. If you pull back two balls and let them strike the others,two balls are knocked from the other end, and all the other balls remain nearly at rest. Great for stress relief and makes a wonderful gift!

Listening to Lazy Eye on the album Carnavas by The Silversun Pickups. Newton's Cradle. Discovery Science Museum - Acton, MA. random fact: this photo is the 9999 photo taken on the 5DM2. Back from Boston. I'll be catching up now. Trip update: It rained buckets non-stop Monday through most of Wednesday. Massive flooding in Massachusetts and Rhode Island. Despite the weather we had a great time. Except, for our trip home, at South Station Boston, after we settled into our table for a snack, it was announced that all Amtrak trains out of Boston were cancelled due to flooding. Well, we scrambled to rent a car and made it home after a grueling eleven hour trip with backups and detours and bio breaks. At home it was 75 and sunny! Looking forward to a great weekend.