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Hi and welcome to wikipedia. I just wanted to say cool drawing! Image:VenusTransitVermeer.png I actually intended doing something similar myself, but you've made such a nice job of it I don't have to. theresa knott 14:52, 8 Jun 2004 (UTC)


Thanks Theresa, appreciated.

Actually I've been drawing quite a lot of stuff, just not on Wikipedia. I'm amazed that you use Word for drawing... I've been using xfig forever, it has a horrible UI but is extremely powerful.

Have a look at my lecture notes for more examples... anything you would like to see on Wikipedia?

Vermeer 15:40, 8 Jun 2004 (UTC)

Nice! You'd be the best person to judge what could go in wikipedia though (I only speak english so i couldn't read the notes to work out what the diagrams were). I'm sure anything you add would be appreciated, though. theresa knott 09:00, 14 Jun 2004 (UTC)

Radius of curvature

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Greetings Prof. Vermeer! I saw your Reference ellipsoid edit from last year, adding the "M" and "N" radii of curvature: I have seen it written that "the radius of curvature at Lat, in the direction Az" is

Does this radius of curvature/arcradius have a particular name (like "M" is the "meridional" and "N" is the "normal" or "transverse equatorial")? This doesn't seem to be the omniversal arcradius, though, which I believe is the "transverse meridional" arcradius (i.e., the arcradius at a point on, in the direction of, a "great circle"):

Is there another name for this arcradius (I can't find it discussed——or even ackowledged——anywheres)? I made an inquiry at the Reference Desk a couple of months ago, but didn't get any satisfactory reply (see: arcradius inquiry).  ~Kaimbridge~22:34, 31 December 2005 (UTC)[reply]

(Respones have transpired via e-mail) ~Kaimbridge~00:41, 2 January 2006 (UTC)[reply]

Your account will be renamed

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03:31, 20 March 2015 (UTC)

Renamed

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20:13, 22 April 2015 (UTC)