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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13
1 tube of glue
and even a spare frame rod and connector so you can keep on flying if you ever lose a part
Measures 6 inches x 4 inches
little walkers will enjoy taking this sweet elephant for a stroll
hand knit with premium 100% cotton yarn
The Thermodynamic Drinking Bird Age 3-4 1 tube of glueThermodynamic Heat Engine. Wow! Thermodynamics & pressure differentials! Enjoy this classic physics demonstration in a handy duck shape. This thirsty bird perpetually bobs long as it has a glass of water to dunk in. Instructions on box. This is not a toy. Age 14+. Fragile Glass The drinking bird is a heat engine that exploits a temperature difference to convert heat energy to a pressure difference within the device, and performs mechanical work. Like
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