Talk:Trammel of Archimedes
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Untitled edit
The article links to Archimedes without any explanation of the historical context of the Trammel of Archimedes. Is Archimedes credited with inventing the device, or simply describing the underlying principles of the ellipse? — Preceding unsigned comment added by 71.94.157.242 (talk • contribs)
- That's a good question (which I don't know the answer to, unfortunately.) You may want to try asking over at the Reference desk. Siawase (talk) 18:08, 9 January 2011 (UTC)
Useless Machine edit
The article suggests by its references (both forward and backward) that the trammel is a useless machine. Seeing how the trammel is (other than construction with a piece of rope and two nails) the only known way of -precisely- manufacturing an ellipse in e.g. woodworking or metalworking, the machine most definitively serves a useful purpose. — Preceding unsigned comment added by 92.192.110.134 (talk) 15:34, 20 January 2016 (UTC)
Tusi Couple edit
This article seems incorrect. I believe this is properly described as a Tusi Couple which has it's own page. Originally discovered in the 13th century. — Preceding unsigned comment added by Veloman (talk • contribs) 00:10, 8 January 2019 (UTC)
It can also be used to make a circle: sources: numberphile channel Bueatiful Trigonometry on youtube(June 16, 2020); Youtube: mathloger - secrets of the nothing grinder, december 2019. It is related to an elipsograph — Preceding unsigned comment added by 50.82.110.99 (talk) 18:56, 22 June 2020 (UTC)