ends of the shafts, a b, have 60 teeth each, the earth. But as, while the earth is rotating on its and the pinions at the lower ends have 30 teeth each; own axis, it is also traveling forward in its orbit around and as the driving wheels, c d, having 90 teeth each, the sun, it therefore has to turn… … dial, it would mark the Fig. 3.-VIEW OP WOBKS WITH DIALS BEHOVED. space which, in conse- quence of the earth's motion, the sun appears to describe among the revolve twice it is evident that the wheels, e /, stars. This great circle of the sun's apparent yearly while the wheels, c d, revolve once.…
Patented · Patents · Contained · Munn · Scientific American · Torpedo · Sulphuric acid · Steam pump · Ring finger · American supplement · Address munn · Water machinery · Carbonic acid · Cedron seed · Steam pipes
Internet Archive · Public domain (published before 1931). Free to use for anything.
