Capillary
attraction type
Plan and
elevation. A tank nearly filled with water and two wheels marked a, a and b, b are placed in the water in the
tank. By capillary attraction the water rises between the two wheels
marked x, x, to a height above the level of
the water in proportion to the distance of the wheels from each other
at x, x. As the water rises between the
wheels marked x, x, above its level, the weight of
water between the wheels will cause the wheels to continually revolve.
Elevation,
showing the position of the water raised by capillary attraction.
(Subsection 961 and 962, from p.386)
From: Gardner D. Hiscox, M.E., Mechanical Appliances and Novelties of Construction (1927), Norman W. Henley Publ. Co.
In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) -- Carl Sagan
