drinking bird
Product Details
Is this perpetual motion? Technically yes, but it's not energy for free! Temperature differentials drive the motor. That energy comes from the environment - from the sun. Is it efficient? Hardly, but it's still very cool .
The goop in his butt is aether has a very low boiling point, and therefore evaporates quickly. At room temperature, one or two degrees temperature difference causes the bright red chemical to climb to his head. Suddenly topheavy, he falls over. The felt head, soaked in the water from the cup, cools the methylene chloride, and it drains back to the bottom. The bird rights itself, and it starts all over again.
The goop in his butt is aether has a very low boiling point, and therefore evaporates quickly.
- Age:>96 Months
- Place of Origin:China
- Type:Other Educational Toys
- Country:China (Mainland)
- telephone:0086-0579-85175319
| Package: | colorful paper box |
| Payment Terms: | L/C,T/T,Western Union |
| Age: | >96 Months |
| Place of Origin: | China |
| Type: | Other Educational Toys |
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