this may put a persistent half smile in your face, it does to me

[raaaid]

check what the wiki says though soon will be removed this is what im sufering of bizarrenes:

Dunking bird of the second kind

A 'dunking bird of the second kind' was introduced [3], which, while similar to the original drinking bird, will operate without a temperature difference, instead extracting free energy directly from the evaporation of water.
Such a bird works as follows: It is balanced such that, when dry, it tips into a head down position. The bird is placed next to a water source such that this position brings its beak into contact with water. Water is then lifted into the beak by capillary action (the authors used a triangular sponge) and carried past the fulcrum. When enough water has been raised, the bird tips into a head up position. With the beak out of the water, eventually enough water evaporates from the sponge for the head to tip down again.