![Bulletin. Science. Figure 21.— Top: Chebyshev straight- line linkage, 1867; from A. B. Kempe, How to Draw a Straight Line (London, 1877, p. 11). Bottom: Chebyshev- Evans combination, 1867; from Oeuvres Bulletin. Science. Figure 21.— Top: Chebyshev straight- line linkage, 1867; from A. B. Kempe, How to Draw a Straight Line (London, 1877, p. 11). Bottom: Chebyshev- Evans combination, 1867; from Oeuvres](https://c8.alamy.com/comp/RH06C5/bulletin-science-figure-21-top-chebyshev-straight-line-linkage-1867-from-a-b-kempe-how-to-draw-a-straight-line-london-1877-p-11-bottom-chebyshev-evans-combination-1867-from-oeuvres-de-p-l-tchebychef-st-petersburg-1907-vol-2-p-94-points-c-c-and-cquot-are-fixed-a-is-the-tracirig-point-quotthe-motion-is-of-little-or-no-practical-use-for-we-can-scarcely-imagine-circumstances-under-which-it-would-be-more-advantageous-to-use-such-a-complicated-system-of-levers-with-so-many-joints-to-be-lubricated-and-so-many-pins-to-wear-than-a-solid-guide-of-some-kind-b-RH06C5.jpg)
Bulletin. Science. Figure 21.— Top: Chebyshev straight- line linkage, 1867; from A. B. Kempe, How to Draw a Straight Line (London, 1877, p. 11). Bottom: Chebyshev- Evans combination, 1867; from Oeuvres
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Pins, Picks, and Popsicle Sticks: A Straight-Line Crafts Book: Williams, Barbara: 9780030177866: Books - Amazon.ca
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