| View Cart ⇗ | Info

“[The pulley] consists of a wheel with a grooved circumference, over which a rope passes, and an axis or pin, round which the wheel may be made to turn. A represents the block, B the axis, C the wheel.” —Quackenbos 1859




G. P. Quackenbos A.M. A Natural Philosophy: Embracing the Most Recent Discoveries in the Various Branches of Physics, and Exhibiting the Application of Scientific Principles in Every-day Life (New York: D. Appleton and Company, 1859) 106


TIFF (full resolution)

1768×2400, 350.6 KiB

Large GIF

754×1024, 56.9 KiB

Medium GIF

471×640, 30.8 KiB

Small GIF

235×320, 12.5 KiB