Home > Products > automotive generator regulator > Bimetallic Jumping Discs for 2015 Christmas
Bimetallic Jumping Discs for 2015 Christmas
- 5000000 Unit / Units per Month
- SHANGHAI
- T/T Credit Card
Product Details
Place of Origin: | Anhui, China | Brand Name: | Boton | Model Number: | SD05 |
Type: | Other Educational Toys |
Product Description
Why does the disc jump?
How it works!
The jumping disc is made from a special piece of metal, called bi-metal that moves when heated with your thumb. When it is warmed to about body temperature, you can “click it” into its loaded position and then carefully place it on a hard surface. When it cools down to room temperature, it suddenly snaps back into the old position, and simultaneously jumps high up in the air. It jumps several hundred times its own height.
The jumping disc works on the same principle as a thermostat or a shunt-valve in your car. With such a thermostat or automatic valve, a special piece of metal, called bi-metal, moves when heat is applied or removed. Bi-metal is actually two pieces of thin metal fused together in the middle. When the temperature changes, the metals expand differently and bend into a curve in either direction.
For instance, when the temperature drops in your home the bi-metal in your thermostat cools down, moves a little, hits a contact and turns on a heater. This way the temperature stays the same. In a car, the metal disc made of bi-metal opens or closes the valve to the radiator, so the water stays about the same temperature to make the engine run well.
In the case of the jumping disc, the bi-metal stays in one position when at room temperature, and in another position when at body temperature. First you warm it to body temperature in your hand, and then you snap the disc between your fingers so it stays in this “new” position. Now you carefully, and quickly, slide it onto a hard surface, like a table. In a few seconds the disc cools off, suddenly snaps back into the regular position, and with a loud “click” flies high into the air!
The package of our disc :
Shipping Information
-Sea Shipping: Usually it will take around 20-30 days to arrive most countries. You need to make custom clearance when goods arrive your side. It is the cheapest way of shipping. So if you are not in a hurry and have big quantity of goods, you can choose sea shipping.
-Air Shipment: Usually it will take around 3-10 days to arrive most countries. You also need to make custom clearance when goods arrive your side. It is more expensive than sea shipping, but cheaper than by express.
-International Express: Such as DHL, Fedex, UPS, TNT, TOLL, DPEX, USPS and so on. You can choose Economy Service which is cheaper than normal service if the goods are not urgent. It is one kind of Door to Door service. Normally if the goods volume is not very big, you don’t need to make custom clearance in your side. The courier will send the goods to your door.
6.Payment Term
T/T; L/C; Western Union;Others
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If any requirements, please contact us without hesitation,your inquiry will be received with our high attention and immediate reply when you are interested in our products, please enquire us, we will give you immediate reply, welcome to visit our website.
Contact Us
- Wuhu Boton Automobile Parts Factory
- Contact nameAbby Wang
- Phone086-0553-5716221
- AddressNo.10 Wuhu,Anhui
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