Template:Did you know nominations/Quadrisecant

The following discussion is an archived discussion of the DYK nomination of the article below. Please do not modify this page. Subsequent comments should be made on the appropriate discussion page (such as this nomination's talk page, the article's talk page or Wikipedia talk:Did you know), unless there is consensus to re-open the discussion at this page. No further edits should be made to this page.

The result was: promoted by SL93 (talk) 01:26, 30 July 2013 (UTC)

Quadrisecant

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• ... that every knotted polygon in three-dimensional space can be touched at four points by a quadrisecant line (pictured)?

• Reviewed: International Society for Soil Mechanics and Geotechnical Engineering

Created by David Eppstein (talk). Self nominated at 22:39, 28 July 2013 (UTC).

• Article is new enough and long enough, the image is appropriately sourced. The hook source is accepted in good faith. Cwmhiraeth (talk) 09:37, 29 July 2013 (UTC)