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In Apple's splash screen, is that pink thing a real nebula or aurora or what? — Tamfang ( talk) 08:08, 30 September 2012 (UTC)
In this cite, what does "CC" stand for?
"Figs. B I, B II, B III. Three sections of a Pristiurus-embryo. B I is through the heart, B II through the anterior part of the dorsal region, and B III through a point slightly behind this. Drawn with a camera. (Zeiss CC ocul. 2.)"
69.138.178.234 ( talk) 11:20, 30 September 2012 (UTC)
Re: http://en.wikipedia.org/wiki/Pancreatin
Are these supplements meant merely to supply deficient enzymes? Is there a supplement which will decrease the body'w own production of amylase and lipase, as by a negative feedback mechanism? Is there a difference in this in regards to pancreatin vs. pancrealipase, pre-enzymes vs. active enzymes? I'm unsure how passage through the stomach affects these enzymes before they reach the small intestine. — Preceding unsigned comment added by 173.28.222.74 ( talk) 15:42, 30 September 2012 (UTC)
unsourced speculation
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The downside is that (I would say - the paper doesn't) in order for this to be effective, you pretty much have to reduce the food to some sort of amino acid supplement pap, unless, that is, you devise some extraordinarily clever enzyme that can seek out and destroy the specific epitopes responsible and not much else, which I think can be done, but drawing you a blueprint is another matter again. I would view other uses with considerable skepticism. Note that pancreatin itself can cause hypersensitivity to repeated exposure.[ PMID 1134882] I would have some suspicion that extensive exposure to non-human digestive enzymes, especially in persons prone to allergy, would be a Bad Thing, and that there would even be some risk of subsequent allergic rejection of the person's own digestive enzymes, but I have no proof for this, and admittedly, people have been exposed to pancreatin and some other enzymes in freshly butchered kills for millions of years, and regulatory agencies approve that these products are handled incidentally as contact lens cleaners by large numbers of people without obvious drawbacks. Wnt ( talk) 17:24, 30 September 2012 (UTC) |
is there any explaining about cool melting in wikipedia? -- Akbarmohammadzade ( talk) 17:06, 30 September 2012 (UTC)akbarmohammadzade-- 78.38.28.3 ( talk) 17:04, 30 September 2012 (UTC)
thanks!ok , i couldn't find any thing about cool melting there.Akbarmohammadzade — Preceding unsigned comment added by 78.38.28.3 ( talk) 05:00, 2 October 2012 (UTC)
cool melting may occur by effect of radio waves .three phases of matter have common point named triple point in thermodynamic ,the solid matter can pass from liquid phase direct to vapor case .This process is in thermodynamic for amounts of pressure and temperature and volume ,but radio waves can melt solid matter in very cool temperature.akbarmohammadzade-- 78.38.28.3 ( talk) 04:09, 2 October 2012 (UTC)
All right ,so — Preceding unsigned comment added by 78.38.28.3 ( talk) 06:14, 2 October 2012 (UTC)
Given water thickness h, water viscosity η, water density d, wetted tire surface area A, and vehicle velocity v, how do I find the force slowing down the vehicle, if the tires do not make contact with the road?
To solve this homework problem I've used my professor's cited (empirical? N-S derived?) relation of skin drag coefficient = 1.33 / sqrt(Re), where Re is Reynold's number. Then I used the drag equation to compute the force. For example, if the mass of the vehicle is 1000 kg, A = 0.1 m^2, h=0.1mm, and v = 10 m/s and dynamic viscosity of water is 1.002 * 10^-3 N*s/m^2 and water density 0.9982 g/cm^3, I get a stopping distance of 206m, assuming the water plane thickness h and wetting area A do not change.
However, something doesn't sit right with me (for example, I don't think *all* of the drag is skin drag) and I'm looking for an alternate way to solve this problem. 71.207.151.227 ( talk) 17:32, 30 September 2012 (UTC)
I stumbled across two images, File:AWaveEquation.gif and File:AWaveEquation2.gif, that apparently describe some kind of wave equation. I don't know what they mean, and I can't tell if they are meaningful or useful. I've listed them for deletion because they aren't used anywhere; see Wikipedia:Files for deletion/2012 September 30#File:AWaveEquation.gif. If someone here can see that these images are potentially useful for some encyclopedic purpose, please contribute to the deletion discussion there. — Bkell ( talk) 18:40, 30 September 2012 (UTC)
except urine, female-semen, and lubrication, what else is released by the fluid-releasing vaginal parts? Thx. 58.11.229.10 ( talk) 21:26, 30 September 2012 (UTC)
Please answers.— Preceding unsigned comment added by 58.11.113.153 ( talk • contribs) 04:13, 1 October 2012
Science desk | ||
---|---|---|
< September 29 | << Aug | September | Oct >> | October 1 > |
Welcome to the Wikipedia Science Reference Desk Archives |
---|
The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
In Apple's splash screen, is that pink thing a real nebula or aurora or what? — Tamfang ( talk) 08:08, 30 September 2012 (UTC)
In this cite, what does "CC" stand for?
"Figs. B I, B II, B III. Three sections of a Pristiurus-embryo. B I is through the heart, B II through the anterior part of the dorsal region, and B III through a point slightly behind this. Drawn with a camera. (Zeiss CC ocul. 2.)"
69.138.178.234 ( talk) 11:20, 30 September 2012 (UTC)
Re: http://en.wikipedia.org/wiki/Pancreatin
Are these supplements meant merely to supply deficient enzymes? Is there a supplement which will decrease the body'w own production of amylase and lipase, as by a negative feedback mechanism? Is there a difference in this in regards to pancreatin vs. pancrealipase, pre-enzymes vs. active enzymes? I'm unsure how passage through the stomach affects these enzymes before they reach the small intestine. — Preceding unsigned comment added by 173.28.222.74 ( talk) 15:42, 30 September 2012 (UTC)
unsourced speculation
|
---|
The downside is that (I would say - the paper doesn't) in order for this to be effective, you pretty much have to reduce the food to some sort of amino acid supplement pap, unless, that is, you devise some extraordinarily clever enzyme that can seek out and destroy the specific epitopes responsible and not much else, which I think can be done, but drawing you a blueprint is another matter again. I would view other uses with considerable skepticism. Note that pancreatin itself can cause hypersensitivity to repeated exposure.[ PMID 1134882] I would have some suspicion that extensive exposure to non-human digestive enzymes, especially in persons prone to allergy, would be a Bad Thing, and that there would even be some risk of subsequent allergic rejection of the person's own digestive enzymes, but I have no proof for this, and admittedly, people have been exposed to pancreatin and some other enzymes in freshly butchered kills for millions of years, and regulatory agencies approve that these products are handled incidentally as contact lens cleaners by large numbers of people without obvious drawbacks. Wnt ( talk) 17:24, 30 September 2012 (UTC) |
is there any explaining about cool melting in wikipedia? -- Akbarmohammadzade ( talk) 17:06, 30 September 2012 (UTC)akbarmohammadzade-- 78.38.28.3 ( talk) 17:04, 30 September 2012 (UTC)
thanks!ok , i couldn't find any thing about cool melting there.Akbarmohammadzade — Preceding unsigned comment added by 78.38.28.3 ( talk) 05:00, 2 October 2012 (UTC)
cool melting may occur by effect of radio waves .three phases of matter have common point named triple point in thermodynamic ,the solid matter can pass from liquid phase direct to vapor case .This process is in thermodynamic for amounts of pressure and temperature and volume ,but radio waves can melt solid matter in very cool temperature.akbarmohammadzade-- 78.38.28.3 ( talk) 04:09, 2 October 2012 (UTC)
All right ,so — Preceding unsigned comment added by 78.38.28.3 ( talk) 06:14, 2 October 2012 (UTC)
Given water thickness h, water viscosity η, water density d, wetted tire surface area A, and vehicle velocity v, how do I find the force slowing down the vehicle, if the tires do not make contact with the road?
To solve this homework problem I've used my professor's cited (empirical? N-S derived?) relation of skin drag coefficient = 1.33 / sqrt(Re), where Re is Reynold's number. Then I used the drag equation to compute the force. For example, if the mass of the vehicle is 1000 kg, A = 0.1 m^2, h=0.1mm, and v = 10 m/s and dynamic viscosity of water is 1.002 * 10^-3 N*s/m^2 and water density 0.9982 g/cm^3, I get a stopping distance of 206m, assuming the water plane thickness h and wetting area A do not change.
However, something doesn't sit right with me (for example, I don't think *all* of the drag is skin drag) and I'm looking for an alternate way to solve this problem. 71.207.151.227 ( talk) 17:32, 30 September 2012 (UTC)
I stumbled across two images, File:AWaveEquation.gif and File:AWaveEquation2.gif, that apparently describe some kind of wave equation. I don't know what they mean, and I can't tell if they are meaningful or useful. I've listed them for deletion because they aren't used anywhere; see Wikipedia:Files for deletion/2012 September 30#File:AWaveEquation.gif. If someone here can see that these images are potentially useful for some encyclopedic purpose, please contribute to the deletion discussion there. — Bkell ( talk) 18:40, 30 September 2012 (UTC)
except urine, female-semen, and lubrication, what else is released by the fluid-releasing vaginal parts? Thx. 58.11.229.10 ( talk) 21:26, 30 September 2012 (UTC)
Please answers.— Preceding unsigned comment added by 58.11.113.153 ( talk • contribs) 04:13, 1 October 2012