Store New Arrivals Add to Favorite View Feedback Contact Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office Description Item model number A-09 Product Dimensions 5.6 x 4.7 x 5.7 inches Country of Origin China Item Weight 1.28 pounds Edition 5 Beads Manufacturer recommended age 3 years and up Gravity At Work :See before your eyes as the Newton Balls transfer fall and transfer weight across the gadget. Drop one ball or two balls. You can see the energy transfer in such an astounding way! Office Desk Decor :Show some character and express your love for science and physics with this decorating your office space. Can be meditative and fun to watch also! Educational Classy :Experience the visual display of momentum. Use this in class and share with your friends and family the exciting world of physics and science! Perpetual Motion: The pendulum balls show the conservation of momentum and energy, creating perpetual motion,these swinging kinetic balls are perfect addition to your office desk decoration accessories or teaching tool at schools. Good Gift Idea: Suit for both kids and adults, excellent for learning science, killing boring time and releasing stress, which makes it a good present for birthday, holiday. Meanwhile, It?s not only a toy, but also a good desk decor. You can put it on your desk or shelf, and swing it anytime when you passing by, it will be a wonderful scenery in your home or office! Product Description Newtons Cradle: Newton cradle demonstrates the third law of motion with swinging spheres; when one ball is lifted and released it sends force through the rest, pushing the end ball in the opposite direction; these swinging kinetic balls are perfect addition to your office desk decoration accessories or teaching tool at schools Specifications: Size: 5.7x5.7x4.7 in Material: Solid wood+ Fishing line+ Stainless steel balls structure Occasions: Science Education supplies, Psychotherapy, Stress release, Leisure and entertainment, Birthday present, Holiday gifts, Business gifts Warm Prompt: 1, When you use this newton?s cradle, please move it in a horizontal line, so the lines will not be tangled. 2, If it was tangled, you could untangle it still with some patience and time, then you will fix it. It?s also a challenge for you, why not have a try? How to untangle it: Firstly, please figure out how the wires were tangled, then follow the wires to untangle it, and you can untangle it in few mins. Perpetual motion How does this even work? All you need to do is just pull one ball back. When the ball swings back, it will hit the other 3 and the one on the other end will move and do the same thing. Home office decor Perfect for children to learn and understand Newton's laws of motion while playing this interesting gadget. Meanwhile, it is also an excellent desktop toy for the office, a good tool to relax your mind while you feel tired at working. It is a perfect decoration, whether at the office or at home. Great Gift Suitable for adults and children, a good toy for learning science, passing boring time, and releasing stress. There is no doubt that this is a good gift for birthdays and holidays. Easy installation, funny and educational. Longer Swing Time Due to the resistance and friction of the air, the Newton's cradle balance ball will continue to move for 10-20 seconds. You have enough time to observe the physical performance of the Newton's Cradle Balance Balls movement. What's Included Includes 1 Newtons cradle to add to your desk knick knacks and accessories ABOUT US We offer the best prices around on high quality products. Our E-store includes media such as books, movies, music and games while offering electronics, toys, sporting apparel, clothing, tools, general home, garden items and more. SHIPPING We are always working hard to ensure your package arrives as soon as possible. Please understand that some factors like weather, high postal traffic, and the performance of shipping companies are outside of our control. We offer free shipping to the lower 48 states and ship within 2 business days of payment, usually sooner. We do not accept P.O. Boxes. Please provide a physical address. 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