Copernicus
Drinking Bird
Regular price
$9.99
Drinking Bird
WOW! Thermodynamics & Pressure Differentials!
Enjoy This classic physics demonstration in a handy duck shape. This thirsty bird perpetually bobs as long as it has a glass of water to dunk in—instructions on the box.
A personal heat engine in a handy duck-shape
2x7"inches.
This is not a toy for ages 14+
