A descriptive and historical account of hydraulic and other machines for raising water (1842)
Ewbank, Thomas · Tilt & Bogue · leaf 400
form of the vessels is altered , and double convex lenses or “ burning glasses ” are so arranged on their covers as to collect “ the raies of the sun within the said vessels , the which will cause a great heat to the water , and by that means make it spring forth with great abun - dance , and also… … No . 175 . Air Engine , from Decaus . Whether this application of lenses “ to encrease the force of the sun ” in air engines , was a device of Decaus , we know not . The idea however
e-rara · Eisenbibliothek Schlatt · No known copyright restrictions. Free to use for anything.
