The seven follies of science; a popular account of the most famous scientific impossibilities and the attempts which have been made to solve them. To which is added a small budget of interesting paradoxes, illusions, and marvels (1906)
Phin, John, 1830-1913 · New York, D. Van Nostrand company · leaf 73
62 THE SEVEN FOLLIES OF SCIENCE the strength of the loadstone) will make it fall into that hole at E; and the force it receives in this fall will carry it with such a violence unto the other end of this arch, that it will open the passage which is there made for it, and by its return will again… … Fig. 15. first) is in the same place whence it was attracted, and, consequently must move perpetually." Notwithstanding the positiveness of the " must " at the close of his description, it is very obvious to any practical mechanic that the machine will not move at all, far less move perpetually,…
Scientific recreations · Geometry
Internet Archive · Cornell University Library · Public domain (published before 1931). Free to use for anything.
