Newton's cradle, named after Sir Isaac Newton, is a device that demonstrates conservation of momentum and energy via a series of swinging spheres. When one on the end is lifted and released, it strikes the stationary spheres; a force is transmitted through the stationary spheres and pushes the last one upward. The device is also known as Newton's balls or Executive Ball Clicker.
Construction
A typical Newton's cradle consists of a series of identically sized metal balls suspended in a metal frame so that they are just touching each other at rest. Each ball is attached to the frame by two wires of equal length angled away from each other. This restricts the pendulums' movements to the same plane.
Packaging & Shipping
Packaging and Shipping
Safe packaging and differents shipping you can choose
Other Products
Other Relevant Products:
Prism
Galileo Thermometer
Sand Pendulum
Crookes Radiometer
Our Services
1).We have our own factories, PRICE is always the competitive one! 2).Our products are exported to all over the world, praised by customers around the world! 3).We attach importance to our service! 4).We are very concerned both pre-sale service and after-sale service.You can feel the most satisfactory through the purchasing process. 5).We can provide the certificate of EN71, HR4040& ASTM 6).We can print logos and change package according to client’s request 7).We can accept mixed orders and accept small order quantity 8) Shanghai JJI is always your best choice!
Company Information
Manufacture all kinds of Glass products, such as Candle Holder, Glass Crafts ,Candles ,Crystal Crafts, Glass candle holder, candle holder, Mosaic item, LED candle holder, Lantern, Lamp, Shade, Votive, Tealight, Ceramic Candle Holder, Glass Vase, Glassware item, Antique Imitation Crafts, Painting & Calligraphy, and other glass utensils, there is always a right for you. Our product is environmental protection product, nontoxic, conforms to European quality standard. Produced products are high quality products, export to many countries such as Germany, the United States, France, England, Scotland, Ireland, Spain, Japan, etc. The company adhering to the "quality first, reputation first, innovation endless" business philosophy, to build their brand. Tell us your needs, we will serve you wholeheartedly!
EXHIBITION
FAQ
FAQ
1. Are you the manufacturer or the trading company? We are the direct manufacturer. 2. Why we choose you? what is your strength? We are experienced and professional, we offer high quality products, perfect services and competitive price. 3. What is your delivery time? Normally, after your deposit, we could finish the production within 7-30days. 4. What is your payment methods? T/T, L/C, Paypal, West Union, Cash 5. About the samples terms: The samples cost and freight need to be covered by you. We will refund when you place the formal order according to sample cost and the total amount of the order. 6. Can you customize the products as per our requests? Yes, we offer OEM and ODM services. a. Do Logo on the product b. Customized products housing c. Customized packing. 7. Any Inquiries will be replied within 24 hours We could communicate with each other by email, skype and telephone. 8. After Sale Service: a. All products will have been strictly Quality Control in workshop before packing. b. All products will be well packed before shipping. c. All our products have 1 year warranty and we sure the product will be free from maintenance within warranty period. 9. Shipping We have strong cooperation with DHL, TNT, UPS, FedEx , EMS, China Air Post and many Forwarder Agency. We also accept that your pointed forwarders.
Contact Information
Focusing on and for scientific educational arts & crafts, Shanghai Jujin International Co., Ltd. has been contributing to find out innovative and cost effective solutions through design, engineering, manufacturing and OEM/ODM services. Our products are elegant and nice. We are constantly improving the quality of our products.
All customers are warmly welcome to visit our office, show room and factory.
For any questions or assistance, please do not hesitate to contact with us.
