DescriptionPlace three seemingly identical spheres on a 3-foot horizontal track touching each other. Slowly roll another sphere slowly into the spheres at rest. Wow! All of a sudden one sphere takes off with tremendous velocity. Has the system gained energy? Could this be the basis of a perpetual motion machine? Hmm... Great for open-ended discovery! Colors may vary. Also available, six additional spheres for additional experimentation.
This product is shipped from our supplier's warehouse in CT, United States
This product is brand new and includes the manufacturer's warranty, so you can buy with confidence.
A 25% handling charge is levied against all authorized returns except those due to our error. Unauthorized returns are subject to a 40% handling charge. Damages & defects must be reported to us within 14 days.
Customers Who Bought This Item Also Bought
You recently viewed items