Multiple
water-wheel
Another
solution of the water-wheel problem, to be obtained by multiplying the
number of wheels, which makes the thing sure to work. The siphon, P,
discharges water upon the upper wheel, and by the aprons, V and W,
successively to the second and third wheel; all of the wheels are
connected to a walking beam by crank and pitman, thus operating a pump
for the water supply. Patented in 1831.
(Subsection 936, from
p.374)
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
