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The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions at one of the pages linked to above. | ||||||||
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I have been thinking about what kind of headphones I want. I want the best pair of headphones I can get for under $200. I want low impedance, I want durability, I want comfort, I want terrific sound quality. Right now I have my eye on some Sony MDR-7506'ers after dying over them a month ago. I will be listening to rock, and classical, and I will use these headphones a lot. Thanks, — Mac Davis] ( talk)
Do black men statistically have larger penes, or is it just made up? — Mac Davis] ( talk)
What hormones govern one's libido? Are each gender's totally different? — Mac Davis] ( talk)
I've just read a review (The Globe and Mail - August 12, 2006) af a new book (The Female Brain by Louann Brizendine. In the review, this statement is made: "In the beginning, actually, we are all the same: the fetal brain is female". I believe that this statement is incorrect even though I have seen it repeated often in many different sources, I'd like to know the correct answer. From conception, as I understand it, all the cells of female brains contain two Y chromosomes and all the cells of male brains contain one X and one Y chromosome? Therefore, from the moment of conception, a male brain would be male and a female brain would be female wouldn't it? When speaking of fetal development, however, perhaps it is true that in the early stages of development, male and female brains do not appear much different until testosterone (as is stated in the review) influences that development. Please give me the straight information about this or direct me to a source which will do so. Thanks.
See our
sex differentiation article. The statement "the fetal brain is female" is misleading and inaccurate. It is a garbled version of pre-gene expression understanding of differentiation. The old version goes roughly like this:
More recent molecular genetic research makes the statement even more ridiculously wrong, as it has now been shown that male and female brains express a number of gene activities differently even before testosterone levels rise enough to cause the differentiation described above. I would not believe anything else this author writes about biology. alteripse 02:02, 13 August 2006 (UTC)
And a point of clarification for our original questioner. You wrote, "all the cells of female brains contain two Y chromosomes", but you meant "all the cells of female brains contain two X chromosomes." (at least for humans!) - Nunh-huh 02:05, 13 August 2006 (UTC)
can a star ever hit the earth?
Ever? Take a look at this website about galactic collisions and Interacting galaxy. -- JWSchmidt 02:43, 13 August 2006 (UTC)
Would someone plz tell me about the networking techniques involved in 4G mobile communication?
Are there any animals with weird names other than Proceratium_google, Goldenpalace.com_monkey, and Pachygnatha_zappa? Thanks! :) - Ravedave 05:57, 13 August 2006 (UTC)
Timber rattler= "Crotalus horridus horridus." Sounds like he made a bad impression on some naturalist. There is an extinct snake species named "Montypythonoides riversleighensis." Edison 17:42, 15 August 2006 (UTC)
For some reason, Scrotum humanum never really caught on. Still, as mentioned above, there are the everlasting favorites of elementary school biology, the tits and the boobies. — Ilmari Karonen ( talk) 18:40, 15 August 2006 (UTC)
what are those round mirrors that were attached to a headband which doctors wore used for and do they have a name?
Just to make it a little more clear - the little mirrors that you normally see perched on their heads in pictures, when used, are swung around to cover their eye - there is a little hole in the center to see through. A light source was placed pointing at the mirror which reflected the light forward wherever they were looking (such as the mouth). Although some ENT doctors still use them, they have largely been supplanted by headlamps which perform the same purpose. InvictaHOG 00:04, 14 August 2006 (UTC)
Hello all. I'm studying for a test tomorrow, and this particular question has me stumped- i have bad notes, and the text book is even worse.
A box of mass 20 kg is dragged along a rough horizontal floor by means of a rope held at the angle of 30 degrees with the horizontal. The force of friction between the box and the floor is 50N. Uf the force exerted along the rope is 350 N, what is the net horizontal force on the box? What is the accelreation on the box?
I would like to know what formual to use, and what adjustments i would need to make. Thanks in advance. Cuban Cigar 08:53, 13 August 2006 (UTC)
Good luck. -- Kjoon lee 09:47, 13 August 2006 (UTC)
I know some of this, but what really stumps me is the force between the object and the ground is 50N.
50N will just be subtracted from the net force, it gives me the right answer. Thanks to everyone who helped.
Aproximately... Thanks.
In answer to a question above, I made a link to a Dutch Wikipedia article, with a description that started with 'In', but the 'In' disappeared. Here's the format: [url|In ... bla bla]. This effect disappeared when I added a space, thus: [url| In ... bla bla]. Here are the real links (see source):
Any idea what caused that? DirkvdM 11:52, 13 August 2006 (UTC)
How long does it take for caffeine to enter breast milk after ingestion and/or how could one test for its possible impact in a breastfeeding baby? Is it possible a mother having one cup of tea could affect her baby soon after? We've googled this, but get contradictory answers. Thanks in advance. Adambrowne666 12:07, 13 August 2006 (UTC)
The half life of caffeine in humans is around 5-7 hours, but this is extended in pregnant women (18-20 hours), women on contraceptives (13 hours) and newborn babies (30 hours). caffeine is completely absorbed form the stomach within 45 minutes, and is widely distributed, which means is likely to be in breast milk. the test for caffeine in a newborn would be pretty drastic, i imagine a blood test or similar, but a test of the breast milk would be easier. i recommend reading caffeine, and talking to a doctor. Xcomradex 12:31, 13 August 2006 (UTC)
On the other hand, caffeine is used as a respiratory stimulant for newborn infants with apnea. The amount passed in breast milk is trivial and harmless. alteripse 18:21, 13 August 2006 (UTC)
Thanks, all Adambrowne666 00:25, 15 August 2006 (UTC)
Anecdote re: speed of transfer from mother's digestive tract to her bloodstream to breast milk: a new mom went out to dinner at a restaurant and ate food containing a lot of ginger, garlic, and onion. Within an hour, she started to breast feed the baby, who was always a good feeder, but who screamed in outrage at the taste of the milk. Then tried to nurse again, baby screamed again. It was ok by the next day, but the mom kept apologizing to the baby all night. Or maybe the milk was still garlicky the next day but the baby had acquired the taste. Edison 17:56, 15 August 2006 (UTC)
Is it possible for Wikipedia to subsribe to scientific journals (particularly review ones - since these aren't "original research") as an institution so that its member could improve it better? -- 130.161.182.91 14:03, 13 August 2006 (UTC)
If you are not already aware, there are many free full-text journals and collections of research papers avaiable on the web. A random selection of some of my collection of links about this:
http://cogprints.org/perl/search/simple
http://www.citebase.org/search
http://ideas.repec.org/search.html
My favourite site is Citeseer, which deals with a wide range of things. I do not know if there is a wikipedia list about free journals, but their ought to be. 81.104.12.50 21:00, 15 August 2006 (UTC)
What products form after diesel has been burnt?
Does anyone know what is the common name for Gordionus violaceus?
I have heard of something called a kineto-baric force that can move things useing electric fields and produce pressure. apparently its similar to electrokinetics except it needs no conductor and can only push things i think. I dont understand physics so could someone explain it to me in simple terms. Also does anyone know if this is mainstream accepted as i can find no skeptical or sites disproving it. It doesnt seem like anti-gravity stuff though, just another method of electro-propulsion. here are the links
http://science.radioelectronics.biz/electrokinetics/electrokineticPropulsion.html
http://www.rexresearch.com/zinsser/zinsser.htm
http://jnaudin.free.fr/lifters/files/ElectrograviticsElectrokineticsValone.pdf this has a mention of its relation to electrokinetics
There is a section on this website http://www.seaspower.com/Movingbeyond-LaViolette.htm "Kineto-baric Field Propulsion. German scientist Rudolph Zinsser discovered that sawtooth electromagnetic waves could be made to push distant objects. He produced a radio tube circuit that transmitted 45 megahertz radio waves having a sharp rise and gradual fall. His experiments demonstrated that these waves could exert impulses of up to 104 to 105 dyne seconds, which is equivalent to the application of about 1 to 3 ounces of force for a period of one second. He found that this force could be generated with an amazingly low input power, the output-force–to–input-power ratio surpassing that of conventional propulsion methods by several powers of ten. His projections imply a thrust of 1350 pounds force per kilowatt."
Secondly could the biefeld brown effect move non conductive substances like plastic or stone if a means to cause the ion wind, or thrust could be produced on its surface?
Thank you for your time Robin research
Hi, why are they? Whenever I wet a napkin with a "clear" liquid - water - it darkens. Why on earth? Thanks! -- 88.91.136.190 18:09, 13 August 2006 (UTC)
The reason that you sunburn quicker in the water is because of the compression of light caused by the waves. You know when you see that moving pattern of sunlight on the bottom of a pool, where the waves compress/rarefact the light because of the shifting angles of incidence on the surface? These magnifications intensify UV and Infared light also, burning you faster. As for the paper towel, i think that in THAT case the color change is mostly due to the tiny fibers being flattened. -- Classic1977 09:43, 6 September 2006
Since our article is a bit devoid of the information I seek: What, exactly, are some useful methods for self surgery? Like, how to fix your own dislocated shoulder, or how to extract a foreign object from your abdomen, or how to treat an infection in the wilderness.
Actually, does Wikipedia have like...A WikiSurvival project or something similar, for questions much like this? -- Abnerian 22:35, 13 August 2006 (UTC)
I have ethical objections to alcohol as I've known three or four drinkers who have ruined theirs and other peoples lives because of it. Also its bad for your physical and mental health. However after taking a lot of exercise over the past few days my muscles are very tense and ache slightly. Is there anything else that I could eat or drink that would relax them please? I am not into massage. Thanks.
Drink at least 20 oz of water after exercise; eat after exercise, especially protein, salt, and carbohydrates. Eat something like pasta with a chunks of steak on top, seasoned with salt. Use ice or a cold pack directly onto the sore muscles, followed by the high heat of a steamy shower. If you are not taking a multivitamin daily, start taking one. Do not rely on creams or expensive store bought products, this works just fine if you follow the above directions. I take Kyokushin Karate and have encountered many a sore muscle and tried many 'remidies'...the simpliest things always work, believe me. -- 69.138.61.168 03:51, 15 August 2006 (UTC)
| ||||||||
The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions at one of the pages linked to above. | ||||||||
|
I have been thinking about what kind of headphones I want. I want the best pair of headphones I can get for under $200. I want low impedance, I want durability, I want comfort, I want terrific sound quality. Right now I have my eye on some Sony MDR-7506'ers after dying over them a month ago. I will be listening to rock, and classical, and I will use these headphones a lot. Thanks, — Mac Davis] ( talk)
Do black men statistically have larger penes, or is it just made up? — Mac Davis] ( talk)
What hormones govern one's libido? Are each gender's totally different? — Mac Davis] ( talk)
I've just read a review (The Globe and Mail - August 12, 2006) af a new book (The Female Brain by Louann Brizendine. In the review, this statement is made: "In the beginning, actually, we are all the same: the fetal brain is female". I believe that this statement is incorrect even though I have seen it repeated often in many different sources, I'd like to know the correct answer. From conception, as I understand it, all the cells of female brains contain two Y chromosomes and all the cells of male brains contain one X and one Y chromosome? Therefore, from the moment of conception, a male brain would be male and a female brain would be female wouldn't it? When speaking of fetal development, however, perhaps it is true that in the early stages of development, male and female brains do not appear much different until testosterone (as is stated in the review) influences that development. Please give me the straight information about this or direct me to a source which will do so. Thanks.
See our
sex differentiation article. The statement "the fetal brain is female" is misleading and inaccurate. It is a garbled version of pre-gene expression understanding of differentiation. The old version goes roughly like this:
More recent molecular genetic research makes the statement even more ridiculously wrong, as it has now been shown that male and female brains express a number of gene activities differently even before testosterone levels rise enough to cause the differentiation described above. I would not believe anything else this author writes about biology. alteripse 02:02, 13 August 2006 (UTC)
And a point of clarification for our original questioner. You wrote, "all the cells of female brains contain two Y chromosomes", but you meant "all the cells of female brains contain two X chromosomes." (at least for humans!) - Nunh-huh 02:05, 13 August 2006 (UTC)
can a star ever hit the earth?
Ever? Take a look at this website about galactic collisions and Interacting galaxy. -- JWSchmidt 02:43, 13 August 2006 (UTC)
Would someone plz tell me about the networking techniques involved in 4G mobile communication?
Are there any animals with weird names other than Proceratium_google, Goldenpalace.com_monkey, and Pachygnatha_zappa? Thanks! :) - Ravedave 05:57, 13 August 2006 (UTC)
Timber rattler= "Crotalus horridus horridus." Sounds like he made a bad impression on some naturalist. There is an extinct snake species named "Montypythonoides riversleighensis." Edison 17:42, 15 August 2006 (UTC)
For some reason, Scrotum humanum never really caught on. Still, as mentioned above, there are the everlasting favorites of elementary school biology, the tits and the boobies. — Ilmari Karonen ( talk) 18:40, 15 August 2006 (UTC)
what are those round mirrors that were attached to a headband which doctors wore used for and do they have a name?
Just to make it a little more clear - the little mirrors that you normally see perched on their heads in pictures, when used, are swung around to cover their eye - there is a little hole in the center to see through. A light source was placed pointing at the mirror which reflected the light forward wherever they were looking (such as the mouth). Although some ENT doctors still use them, they have largely been supplanted by headlamps which perform the same purpose. InvictaHOG 00:04, 14 August 2006 (UTC)
Hello all. I'm studying for a test tomorrow, and this particular question has me stumped- i have bad notes, and the text book is even worse.
A box of mass 20 kg is dragged along a rough horizontal floor by means of a rope held at the angle of 30 degrees with the horizontal. The force of friction between the box and the floor is 50N. Uf the force exerted along the rope is 350 N, what is the net horizontal force on the box? What is the accelreation on the box?
I would like to know what formual to use, and what adjustments i would need to make. Thanks in advance. Cuban Cigar 08:53, 13 August 2006 (UTC)
Good luck. -- Kjoon lee 09:47, 13 August 2006 (UTC)
I know some of this, but what really stumps me is the force between the object and the ground is 50N.
50N will just be subtracted from the net force, it gives me the right answer. Thanks to everyone who helped.
Aproximately... Thanks.
In answer to a question above, I made a link to a Dutch Wikipedia article, with a description that started with 'In', but the 'In' disappeared. Here's the format: [url|In ... bla bla]. This effect disappeared when I added a space, thus: [url| In ... bla bla]. Here are the real links (see source):
Any idea what caused that? DirkvdM 11:52, 13 August 2006 (UTC)
How long does it take for caffeine to enter breast milk after ingestion and/or how could one test for its possible impact in a breastfeeding baby? Is it possible a mother having one cup of tea could affect her baby soon after? We've googled this, but get contradictory answers. Thanks in advance. Adambrowne666 12:07, 13 August 2006 (UTC)
The half life of caffeine in humans is around 5-7 hours, but this is extended in pregnant women (18-20 hours), women on contraceptives (13 hours) and newborn babies (30 hours). caffeine is completely absorbed form the stomach within 45 minutes, and is widely distributed, which means is likely to be in breast milk. the test for caffeine in a newborn would be pretty drastic, i imagine a blood test or similar, but a test of the breast milk would be easier. i recommend reading caffeine, and talking to a doctor. Xcomradex 12:31, 13 August 2006 (UTC)
On the other hand, caffeine is used as a respiratory stimulant for newborn infants with apnea. The amount passed in breast milk is trivial and harmless. alteripse 18:21, 13 August 2006 (UTC)
Thanks, all Adambrowne666 00:25, 15 August 2006 (UTC)
Anecdote re: speed of transfer from mother's digestive tract to her bloodstream to breast milk: a new mom went out to dinner at a restaurant and ate food containing a lot of ginger, garlic, and onion. Within an hour, she started to breast feed the baby, who was always a good feeder, but who screamed in outrage at the taste of the milk. Then tried to nurse again, baby screamed again. It was ok by the next day, but the mom kept apologizing to the baby all night. Or maybe the milk was still garlicky the next day but the baby had acquired the taste. Edison 17:56, 15 August 2006 (UTC)
Is it possible for Wikipedia to subsribe to scientific journals (particularly review ones - since these aren't "original research") as an institution so that its member could improve it better? -- 130.161.182.91 14:03, 13 August 2006 (UTC)
If you are not already aware, there are many free full-text journals and collections of research papers avaiable on the web. A random selection of some of my collection of links about this:
http://cogprints.org/perl/search/simple
http://www.citebase.org/search
http://ideas.repec.org/search.html
My favourite site is Citeseer, which deals with a wide range of things. I do not know if there is a wikipedia list about free journals, but their ought to be. 81.104.12.50 21:00, 15 August 2006 (UTC)
What products form after diesel has been burnt?
Does anyone know what is the common name for Gordionus violaceus?
I have heard of something called a kineto-baric force that can move things useing electric fields and produce pressure. apparently its similar to electrokinetics except it needs no conductor and can only push things i think. I dont understand physics so could someone explain it to me in simple terms. Also does anyone know if this is mainstream accepted as i can find no skeptical or sites disproving it. It doesnt seem like anti-gravity stuff though, just another method of electro-propulsion. here are the links
http://science.radioelectronics.biz/electrokinetics/electrokineticPropulsion.html
http://www.rexresearch.com/zinsser/zinsser.htm
http://jnaudin.free.fr/lifters/files/ElectrograviticsElectrokineticsValone.pdf this has a mention of its relation to electrokinetics
There is a section on this website http://www.seaspower.com/Movingbeyond-LaViolette.htm "Kineto-baric Field Propulsion. German scientist Rudolph Zinsser discovered that sawtooth electromagnetic waves could be made to push distant objects. He produced a radio tube circuit that transmitted 45 megahertz radio waves having a sharp rise and gradual fall. His experiments demonstrated that these waves could exert impulses of up to 104 to 105 dyne seconds, which is equivalent to the application of about 1 to 3 ounces of force for a period of one second. He found that this force could be generated with an amazingly low input power, the output-force–to–input-power ratio surpassing that of conventional propulsion methods by several powers of ten. His projections imply a thrust of 1350 pounds force per kilowatt."
Secondly could the biefeld brown effect move non conductive substances like plastic or stone if a means to cause the ion wind, or thrust could be produced on its surface?
Thank you for your time Robin research
Hi, why are they? Whenever I wet a napkin with a "clear" liquid - water - it darkens. Why on earth? Thanks! -- 88.91.136.190 18:09, 13 August 2006 (UTC)
The reason that you sunburn quicker in the water is because of the compression of light caused by the waves. You know when you see that moving pattern of sunlight on the bottom of a pool, where the waves compress/rarefact the light because of the shifting angles of incidence on the surface? These magnifications intensify UV and Infared light also, burning you faster. As for the paper towel, i think that in THAT case the color change is mostly due to the tiny fibers being flattened. -- Classic1977 09:43, 6 September 2006
Since our article is a bit devoid of the information I seek: What, exactly, are some useful methods for self surgery? Like, how to fix your own dislocated shoulder, or how to extract a foreign object from your abdomen, or how to treat an infection in the wilderness.
Actually, does Wikipedia have like...A WikiSurvival project or something similar, for questions much like this? -- Abnerian 22:35, 13 August 2006 (UTC)
I have ethical objections to alcohol as I've known three or four drinkers who have ruined theirs and other peoples lives because of it. Also its bad for your physical and mental health. However after taking a lot of exercise over the past few days my muscles are very tense and ache slightly. Is there anything else that I could eat or drink that would relax them please? I am not into massage. Thanks.
Drink at least 20 oz of water after exercise; eat after exercise, especially protein, salt, and carbohydrates. Eat something like pasta with a chunks of steak on top, seasoned with salt. Use ice or a cold pack directly onto the sore muscles, followed by the high heat of a steamy shower. If you are not taking a multivitamin daily, start taking one. Do not rely on creams or expensive store bought products, this works just fine if you follow the above directions. I take Kyokushin Karate and have encountered many a sore muscle and tried many 'remidies'...the simpliest things always work, believe me. -- 69.138.61.168 03:51, 15 August 2006 (UTC)