Equipment: A 'drinking bird' and a glass of water. Optional: a plexiglass box and a squeeze bottle containing alcohol. What it does: The bird bobs forward into the glass of water and recovers. It ...

The drinking bird is a heat engine driven by evaporating water absorbing heat from the surroundings. The bird bobs forward into the glass of water and recovers. It oscillates in the upright position ...

The action of the “Drinking Bird” is stopped when it is covered with a large bell jar. It resumes its motion when the bell jar is removed. The demonstration can be used to illustrate the expansion or ...

BirdSmart Bird Safe Glass by Vitro is manufactured using laser etching, which is a “clean” etching process that is ...

Drinking raw milk may pose a risk of bird flu transmission to humans. Will pasteurization eliminate this risk and make milk ...