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An example edit
An example shouldn't be too hard to find here and would be an easy change for a lot of improvement. --76.21.252.107 18:53, 7 October 2007 (UTC)
- Totally agree. A photograph or diagram would be great too! Peacewashlove (talk) 02:24, 5 January 2011 (UTC)
- That's not exactly an example of a gradient, at the moment... — Preceding unsigned comment added by 72.2.40.242 (talk) 23:54, 4 December 2014 (UTC)
Radius of Curvature edit
I've been looking at the design of these and find no clear consensus on the radius of curvature. If anyone did - since this isn't a primary source - it owuld be good to have that in the article. Midgley (talk) 13:28, 21 June 2015 (UTC)
Light Tent edit
Is what I would call the small thing heaped up over the subject in the illustration, not an infinity curve or cove at all, actually. Do others take the same view on naming? Midgley (talk) 13:28, 21 June 2015 (UTC)