Principle: Not only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy. Material: Balance Balls Desk Toy * 1, Stainless steel frame and balls, Nylon threadAttention: Friction and damping effects are inevitable
Pioneering developments for several years, BOJIN have been focusing on the exquisite technologies and physics tools. This classic desktop toy provides you many benefits and entertainments, is suitable for various locations such as house or office, and is an intriguing device that not only demonstrates pendulum motion, but also helps to show the laws of Conservation of Momentum and Energy. Whether you are studying physics knowledge, working on complex analysis, or looking for a delicate gift, this Garget is definitely what you really want.
A Brief History
Newton’s cradle, named after Sir Isaac Newton, is a device that demonstrates three main physics principles: conservation of energy, conservation of momentum and friction via a series of swinging spheres. Most people think that Isaac Newton invented the apparatus commonly called a Newton’s Cradle, but he didn’t. English actor Simon Preble invented the device in 1967 and named it in honor of Newton. In 1968 the first portable version hit the market and quickly gained popularity around the world as a fun, educational physics demonstrator.
- MATERIAL-Our newton cradle use nylon line of good material instead of cheap fishing line which other sellers used. Wooden base and the unique design idea make an impression. Different size give you more choices.
- SWING TIME–The balance balls continue in perpetual motion for only 15-25 seconds due to the resistance of the air and friction, but it won’t influence the effect of playing although it can not reach the seamless convergence among balls in the vacuum.
- EDUTAINMENT–Suitable for children to experience the fun of mechanics in the process of playing this fun gadget.
- APPLICATION–Apply to psychology, teaching tools and furnishings. Frequency swing keeps you in a calm state.
- AFTER SALE SERVICES–Give you support and help at the first time whether it damage, receive the wrong goods or broken and other problems.
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JYC wrist watches digital Fashion Man Crystal Stainless Steel Analog Quartz Wrist Watch – Top Reduction
It’s out to wear a stainless steel or leather band in a party,or not to wear your JYC Store watch,because your JYC Store doesn’t fit your dress in a party.Don’t worry,you can keep your JYC Store in any occasion.our JYC Store replacement band will solve your problem,which will enhance your charming and make your JYC Store Unique,Fashion and Classy!It’s not only a replacement band,but also a jewelry.
Wearing this wrist watch is so wonderful experiences, as if you are touching art directly
Fashionable, very charming for all occasions.
Precise time and keep good time.
- Unique round dial design, very chic and stylish. This classic simple gent’s wrist watch will be greatly suitable for any occasion. It is quite suitable for a great present with elegant package. Fashion Smartwatches Other (Men) Pocket & Fob Watches Watch StrapWrist Watches Pocket Watches Smartwatches Mens Watches Men’s Simple Designer Waterproof Wrist Watch with Stainless Steel Milanese Mesh Strap Luxury Analogue Quartz Business Casual Watches for Men Mens Watches Genuine Leather Band Date
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- High Quality:Made with quality materials which enable the watch to be tough and durable.Geneva Silicone Band Jelly Gel Quartz Wrist Watch Pink Women’s Quartz Easy Reader Date Watch with Dial Analogue Display and Leather Strap Women Lady Quartz Dial Clock Leather Wrist Watch London NY New York rubberised plastic nurses fob watch with Dark Blue with White face Womens Crystal Quartz Watches EU Numeral Analog Clearance Lady Wrist Watch Female watches on Sale Watches for Women,Round Dial Case
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- Package includes: 1 x Watch.Watch Waterproof Quartz Watch with Crystal Dial Clock Leather for Female Luxury Fashion business Classic Women’s Quartz Watch with Dial Analogue Display and Leather Strap London Rose Edition Ultra Slim Rose Gold Women’s Leather Grey Band Quartz Wrist Watch Luxury Classic Simple Casual Design White Dial Fashion Watch Scratch Resistant Dress Watches Womens Cat Pattern Round Dial Artificial Leather Band Arabic Numerals Quartz Analog Watch 355ATM Waterproof Diver
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Artsinhistory Roman Coin – Tetradrachm of Mark Antony and Cleopatra – Replica Currency Ancient Rom – Discounted
- The Roman coin – Tetradrachm of Mark Antony and Cleopatra
- this is a replica of an original roman coinage
- with bust Cleopatra on the obverse and bare head of Mark Antony on the Reverse
- original dimensions: ⌀ ca 20 mm, weight ca. 2 g
- The Ancient Rom currency replica is made in Great Britain
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