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Left click to see original sketch site after you open this site. This is website of sketch (drawing) of roller chain, Leonardo da Vinci. at the Wayback Machine (archived 2009-01-04) Original, The sketch (drawing) of roller chain, Leonardo da Vinci at the Wayback Machine (archived 2011-07-22) Author: Namazu-tron
A common metal short-link chain Roller chains. A chain is a serial assembly of connected pieces, called links, typically made of metal, with an overall character similar to that of a rope in that it is flexible and curved in compression but linear, rigid, and load-bearing in tension.
The Chain Reaction Contraption Contest [6] is an annual event hosted at the Carnegie Science Center in Pittsburgh, Pennsylvania in which high school teams each build a Rube Goldberg machine to complete some simple task (which changes from year to year) in 20 steps or more (with some additional constraints on size, timing, safety, etc.).
methyl groups attached to a ring or as branches in a longer carbon chain; methyl groups at the end of a carbon chain. If labels for structures are desired, consider the use of bolded numerals, which are language-neutral. Information about stereocenters and stereoisomerism should be included if available (e.g. by using wedged bonds).
Goldberg was born on July 4, 1883, in San Francisco, California, to Jewish parents Max and Hannah (née Cohn) Goldberg. [5] [6] He was the third of seven children, three of whom died as children; older brother Garrett, younger brother Walter, and younger sister Lillian also survived. [7]
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A quarter chain, or 25 links, measures 16 feet 6 inches (5.03 m) and thus measures a rod (or pole). Ten chains measure a furlong and 80 chains measure a statute mile. [1] Gunter's chain reconciled two seemingly incompatible systems: the traditional English land measurements, based on the number four, and decimals based on the number 10.
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