Prof. George Sinclair's Device
This device was invented by George Sinclair, who was a professor of philosophy at Glasgow University. He died in 1696. In 1669 he published a work on Pneumatics, and in that work claimed to have discovered Perpetual Motion. Explanations of his device consumed eighteen pages of a Latin work on Pneumatics. It very absurdly depended for its operation upon the delivery of water from the short leg of a siphon, instead of the long leg. The figure illustrates the contemplated operation.
