User talk:Paul Derry

[User-supplied bio goes in User:Your Name]

Welcome

Tasks: start a new article • add basic, wanted or requested articles • add definitions • add metadata • edit new pages

Welcome to the Citizendium! We hope you will contribute boldly and well. Here are pointers for a quick start, and see Getting Started for other helpful "startup" links, our help system and CZ:Home for the top menu of community pages. You can test out editing in the sandbox if you'd like. If you need help to get going, the forum is one option. That's also where we discuss policy and proposals. You can ask any user or the editors for help, too. Just put a note on their "talk" page. Again, welcome and have fun!

You can find some more information about our collaboration groups if you follow this link Citizendium_Pilot:Discipline_Workgroups.You can always ask me on my talk page or others about how to proceed or any other question you might have.

Kind Regards, Robert Tito | Talk 23:18, 14 February 2007 (CST)

NO BIO then do not move please

Mr. Derry

for security reasons we are not in favor of people without a bio to move pages - as vandals use that to mess up all the pages. Would you mind filling in your bio, before any further moves? It will prevent mistakes on our part. thank you for coorperating.

Robert Tito | Talk 23:42, 14 February 2007 (CST) Thanks!!!

Please add a biography -Tom Kelly (Talk) 00:06, 15 February 2007 (CST)

chemistry templates

Mr. Derry

Feel free to copy ANY pages from WP, providing: it has a place within the tree of the chemistry pages. Please do not add loose ends as they will likely be forgotten. Any loose ends being filled and changed according the CZ standards are of course most welcome. thanks for your initiative(s) Robert Tito | Talk 00:17, 15 February 2007 (CST)

I changed your group so now you are also added to the authors in chemistry, feel free to add computers as well, since you have more experience there.

Robert Tito | Talk 12:23, 15 February 2007 (CST)

Please add Workgroup tags to articles you bring over to work on or articles you create

Hello, We are trying to categorize the articles on CZ better than they are on WP. It is essential that we have every article filed in its affiliated workgroup. For example your chemistry articles should get placed in the chemistry workgroup category. If they also have biological importance you could put it also in the biology workgroup category. Then if it has medical importance you could also put it in the Health Sciences workgroup category. -Tom Kelly (Talk) 19:31, 15 February 2007 (CST)

CZ Live category tag

I'm not 100% for sure about this, but any article that you will be working on, add Category:CZ live. I'm not sure about articles that are not going to be actively worked on.

aqueous behavior

These polyatomic ions all have the property to readily dissolve in water - creating their own mechanics in equilibrium from for instance C)2 --HCO3--H2CO3 etc It would be nice to have these aqueous ions mentioned in tehe table as well, as well as their water-shield. Robert Tito | Talk 21:02, 15 February 2007 (CST)

Template list not necessary, autogenerated

Paul, thanks for the attempt to organize our templates, but in fact they are already organized via the Template: namespace.

--Larry Sanger 16:35, 18 February 2007 (CST)

Image

Paul, please you have to include the copyright information in the images that you upload. Thanks. -Versuri 17:34, 20 February 2007 (CST)

high precision Hg-thermometers

Paul, it might be interesting to show a picture of these high precision ∆T measurement thermometers. (dang cant remember their name now) Robert Tito | Talk 18:26, 20 February 2007 (CST)

I'll see what I can find, I know we have some mercury thermometers that are certainly a lot more accurate than the alcohol ones... --Paul Derry 18:28, 20 February 2007 (CST) its that specific thermometer for measuring temp differences up to 0.0001 C/K dang why can't I remember their names

Wow. :| 0.0001 K? Daaaaang.... We certainly do not have one of those at school. --Paul Derry 20:26, 20 February 2007 (CST) They use nonius readers, and you need to define two known points to calibrate it before you know what the actual temp is. dut ∆T = ± 0.0001 K Robert Tito | Talk 20:50, 20 February 2007 (CST)

actually

beakers of 1 ccm are available, as are there beakers of 5000 and 10000 ml, they are rare but exist. for organic extraction I even walked with vessels of >20 liter, shaking ether and some polymer drab I made (poleacrylicacid MW(ave)400000). Robert Tito | Talk 21:44, 20 February 2007 (CST)

The smallest I've ever seen was a 10mL, just a little taller than a thimble and about as wide.

--Paul Derry 22:22, 20 February 2007 (CST) well they are there, lol I worked with them. Back to the thermometer: it is a Hg-therm, with a separate presicion part for the interpolation, lets say the ∆ = 3K in that ∆ you can read the interpolated temp with an extreme precision.

So you take a rough temperature and then use this thermometer to find the remaining decimal places? --Paul Derry 23:55, 20 February 2007 (CST) sort of yes. the therm can only be used in a very narrow region (but you can set that region yourself by calibrating the upper temp and lower temp) it can measure temps that way between -40 - 225 ˚C with an extreme accuracy. Far far exceeding anything Pt-based (±1 K per definition) or bi-metal (±0.5K per definition) and nothing so far has exceeded pure calibrated mercury thermometers. By the way that is why I have a Hg-barometer at home. Robert Tito | Talk 00:13, 21 February 2007 (CST)

I'm going to guess these are more precise than those digital thermometers with a thermistor in them? This year I think I've used a mercury thermometer no more than twice. That's partly because the mercury separated in several places and we just haven't taken the time to correct that. :-) For temperature measurements below something like 50C it works just fine, but above that the mercury's separated. :-D

--Paul Derry 00:31, 21 February 2007 (CST)