
Ring ball Apparatus
A useful apparatus for demonstrating thermal expansion. Includes a brass ball and a brass ring each mounted on a handle. The ball fits easily through the ring at room temperature. When the ball is heated over a flame, it expands and no longer fits in the ring.
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Escrow is safe for buyers and sellers, we recommend you to choose Escrow,it supports Credit card,
Money bookers, Visa, Master-card, Western union etc.
If you need to use "other" payments,please contact us ,via mail or message.
Payment should be finished within 7 days, if have some difficult, please notify me.
We only ship to your confirmed address. Please make sure your shipping address is co |
Original: $4.25
-70%$4.25
$1.27Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
A useful apparatus for demonstrating thermal expansion. Includes a brass ball and a brass ring each mounted on a handle. The ball fits easily through the ring at room temperature. When the ball is heated over a flame, it expands and no longer fits in the ring.
|
Escrow is safe for buyers and sellers, we recommend you to choose Escrow,it supports Credit card,
Money bookers, Visa, Master-card, Western union etc.
If you need to use "other" payments,please contact us ,via mail or message.
Payment should be finished within 7 days, if have some difficult, please notify me.
We only ship to your confirmed address. Please make sure your shipping address is co |















