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This is an old revision of this page, as edited by Bkell (talk | contribs) at 22:01, 5 April 2004 (also I screwed up the Unicode link; apparently I suck). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Per your question on Wikipedia:Vandalism in progress - yep, your handling of the Transhumanism vandal was perfect. I'm always impressed by how quickly trash like this (and subtler stuff too) gets spotted and removed. Keep up the good work. -- Finlay McWalter | Talk 23:34, 16 Feb 2004 (UTC)

:-) Omegatron

Hello, I answered your question regarding Fourier transforms and uncertainty on my talk page. Cheers, AxelBoldt 13:31, 26 Feb 2004 (UTC)


Hi Omegatron - nice work on the gyrator. Would you mind telling me what software you used in drawing the circuit diagram...? Suggestion: Let's rename R1 > R0, because that's basically given, and R2 > R, leaving essentially C and R to play with. --Palapala 09:24, 28 Feb 2004 (UTC)

I used Klunky schematic editor. It is online at
http://www.qsl.net/wd9eyb/klunky/framed.html
Then I took the screenshot and edited it a bit to make it prettier. I also drew a bunch of pictures for opamp configurations, so I can make an article on that, but I left them on my work computer. What do you mean that R0 is given? - Omegatron
Oh you mean that the inductor you would want to simulate would already have the R1 defined? How about we name it R1 --> RL, like a real inductor would have it labeled, and then the other R2 --> R. By the way, one of those links has the opamp inputs inverted. Do you know if it makes a difference? It seems like it would... - Omegatron
Thanks for the Klunky link. Noticed you changed the text according to the diagram. -- Yes, the Romanian page has the inputs of the opamp the other way around; I'm not an expert, this link shows it the way you did it, I'm a bit on a loss here. --Palapala 20:59, 28 Feb 2004 (UTC)
I will do the calculations sometime tomorrow and double check. And maybe send that site an email if I can. - Omegatron

In thermionic emission you added that it was initially discovered by Professor Guthrie in 1873. I did a little searching and the only person I could find was physicist Frederick Guthrie in London who lived from 1833-1886, and did research on heat, magnetism and electricity. I assumed he was the right guy. Then I found Scottish physicist Peter Guthrie Tait (1831-1901) and found he did work on thermoelectricity. Which is right? I assume it is Peter, but I already assumed too much, so I will ask the source and leave it undefined for now... - Omegatron

I wish I knew which Guthrie it was, the source I used did not specify the full name (unfortunately) but I assumed it to be a last name. -- RTC 06:42, 8 Mar 2004 (UTC)
Ok, thanks. I will keep searching... - Omegatron

thanks

thanks for figuring out how to force png rendering without altering appearence! Perl 23:04, 9 Mar 2004 (UTC)

Congratulations. That seems to be fairly general... --Palapala 17:19, 2004 Mar 10 (UTC)

Hi, since you're a DSP engineer, perhaps you would be interested in helping out with the Electronics wiki-textbook. http://wikibooks.org/wiki/Electronics

Yes, I would love to. - Omegatron 20:48, Mar 19, 2004 (UTC)

Thermioic Emission/Dots

Omegatron: I wasn't able to get over to the physics library before it closed that day; I'll try again soon if I get the chance.

The Dot project is intended to create maps for the Ram-bot generated articles. See Siler City, North Carolina for an example. The maps on my user page are just intended to track the progress of the project. - Seth Ilys 17:13, 26 Mar 2004 (UTC)

Reason for HTML's irrelevancy

The numeric HTML entities for colon and semicolon are highly irrelevant, because they are never, ever used. In fact, the only time I have ever seen a numeric entity used for either of these is in the MediaWiki:Punctuation_marks box, and that's only because Wikipedia attaches a special meaning to a colon, not because the HTML needed it for any reason. You can represent the character A in HTML by typing A, but no one ever does, because it's never necessary or useful. The same goes for the numeric entities for the colon and the semicolon. —Bkell 21:35, 5 Apr 2004 (UTC)

Right... But I needed to know it in order to put it in the punctuation box, and the information wasn't on WP.  :-) I figured that was reason enough to include it. Maybe it should just mention that HTML entities are the same number as ASCII for letters and punctuation? - Omegatron 21:38, Apr 5, 2004 (UTC)
Well, Character encodings in HTML already says, "Decimal and hexadecimal HTML character references can also be used, based on the Unicode numeric code for the character encoded." That should be enough information for anyone who needs to encode a colon as :. I imagine they would visit HTML instead of Colon (punctuation), as HTML is more specific to the problem they are having. (To be honest, I would go straight to the HTML spec myself.) There is no reason to include a numeric HTML entity on every page about a punctuation mark or letter or number or other character, especially if it's one that is normally just typed. —Bkell 21:47, 5 Apr 2004 (UTC)