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 ...

Birds need water for drinking and their feathery ablutions too - bathing and preening are essential to keep feathers in good condition. You can create a DIY bird bath from any water-tight shallow ...

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 ...

Placing the bell jar over the bird and beaker of water causes the humidity to approach 100% preventing evaporation and cooling of the head. Consequently, the bobbing stops until the bell jar is ...

Dubbed a DB-THG (drinking-bird triboelectric hydrovoltaic generator), power is extracted from the movement of the bird by the rubbing action of different materials – think rubbing a balloon on a ...