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I was walking in the park with my boyfriend today and we could not identify the round bushy plants. They are in the background of this pic...Are they called pampa grass or somthing? W-i-k-i-l-o-v-e-r-1-7 ( talk) 00:58, 17 March 2008 (UTC)
Pacifica, California. I this Pampas Grass? W-i-k-i-l-o-v-e-r-1-7 ( talk) 03:40, 17 March 2008 (UTC)
My understanding of the BB is that before it there was nothing. A split second after the BB was hydrogen and maybe some hellium. And that the "Big Bang" was an explosion. Like they said on the History chanel, "the Universe" exploded into existence. So I mentioned this to a friend and said that the Big Bang was an explosion. And that before that there was nothing. He said I was wrong on both accounts. I all but called him a morron. He is not an ID. He is saying that the BB was not an explosion. My Q: If it was not an explosion then what was it? Q: what was it that exploded? What was there before the BB? thanks cris —Preceding unsigned comment added by Loach ( talk • contribs) 01:11, 17 March 2008 (UTC)
Thank you. That is more or less what I thought. Again, thank you for the help. —Preceding
unsigned comment added by
68.209.69.103 (
talk) 03:20, 17 March 2008 (UTC)
Do all eggs contain all of the amino acids, i.e., if forced to live in a survival situation with nothing but eggs how long could you survive with no other food? —Preceding unsigned comment added by 71.100.174.10 ( talk) 01:55, 17 March 2008 (UTC)
It sounds like you saying that human milk and supplemented cow's milk provide complete nutrition for indefinite survival. What I am really looking for are combinations of other foods that one might search for and find in a survival situation like egg of all types for protein and pine needles for Vit C. I'm sure there must be lots of combinations so I am trying to find out what they are. Is there a chart somewhere perhaps that shows all of the required essentals with overlays of the portions provided by various foods? —Preceding unsigned comment added by 71.100.174.10 ( talk) 07:43, 17 March 2008 (UTC)
If you supplemented your eggs with fruits and vegetables I think you'd do pretty well. If you knew your edible plants better than how to steal eggs (you might decimate the local population rather fast depending on where you are eating only eggs), you could also do well combining grains with beans or nuts for your protein. Variety would be the key, some meat, some fruit, etc., since there's no one food you can healthily live on forever. — Laura Scudder ☎ 16:31, 17 March 2008 (UTC)
What percentage of the ATP that is used in the body is used by the brain to run the sodium potassium pumps? Schmultz ( talk) 03:05, 17 March 2008 (UTC)schmultz
I want to know whether a molecule of water is removed when forming a phosphodiester bond between 2 DNA neucleotides. —Preceding unsigned comment added by 124.43.61.81 ( talk) 06:42, 17 March 2008 (UTC)
can infrared raman spectroscopy be used to detect bones in in vivo detection Neel shah556 ( talk) 08:22, 17 March 2008 (UTC)
Can whatever proceeded the Big Bang be defined as the state of minimum entropy?
why can't bernoulli's theorem be used to explain swing in cricket balls? -- scoobydoo ( talk) 14:19, 17 March 2008 (UTC)
because cricket is not a series of tubes? —Preceding unsigned comment added by 79.122.42.52 ( talk) 14:59, 17 March 2008 (UTC)
does temperature & fire have any relation? i mean, can i put out the fire of a burning body by cooling it?-- scoobydoo ( talk) 14:23, 17 March 2008 (UTC)
See our article on fire triangle. Fires do need heat. Rapidly cooling a fire (by adding lots of water for example) does put it out. Theresa Knott | The otter sank 15:25, 17 March 2008 (UTC)
Say you have a rigid object, such as a meter long titanium pole. When you pull one end, the other end presumably doesn't move instantly, because the force would have to move faster than the speed of light. It must be determined by the flexibility between the bonds of the titanium atoms/molecules. So ignoring the impracticality of its weight and size, if you were to pull a light-year, or some similar length, long titanium pole, the other end wouldn't notice it's been pulled until all the bonds are at their maximum pulling length? At that point, it still can't be instant if it's pulled further? Could anyone elaborate on what goes on? -- MacAddct 1984 ( talk • contribs) 15:16, 17 March 2008 (UTC)
I've been told that in the disease of Diabetes damage to the body is done by excessive amounts of either sugar or insulin molecules. Exactly what type of damage is done by excess amounts of either molecule besides oppressing the production/utilization of the other molecule that would cause the loss of toes? Is it damage to cell chemistry or structure, and if so of what does the damage consist? —Preceding unsigned comment added by 71.100.174.10 ( talk) 15:47, 17 March 2008 (UTC)
...to waste part of an onion, but are the green sprouts in the center edible ? That is, should I make the best of them or make compost of them ? StuRat ( talk) 18:07, 17 March 2008 (UTC)
I'm trying to track down the CAS numbers for 1-octen-3-ol. The best I could find is this page from a book about coffee. It lists the numbers [3391-86-4], (±) [50999-79-6], (R)-(-) [3687-48-7], (S)-(+) [24587-53-9]. The latter two clearly refer to the two enantiomers. My question is: what's the difference between 3391-86-4 and 50999-79-6? Both appear to refer to a mixture of the two enantiomers. Thanks, AxelBoldt ( talk) 18:43, 17 March 2008 (UTC)
Yesterday I cut myself in my finger whilst outside. It had some dirt in it so I attempted to clean it to the best of my ability. However some small about of debris was still stuck inside. After a while I stopped trying to get the debris out, thinking it would most likely do more harm than good to go out of my way to pick out the last bit of dirt. Come next morning my wound was magically clean. And when I say clean I mean, perfect pink/reddish skin with not a hint of dirt. I'm wondering, where did this dirt go? Is there some mechanism by which wounds are able to expel small amounts of debris? Did it just fall out whilst I was sleeping even though I couldn't get it out myself? PvT ( talk) 18:58, 17 March 2008 (UTC)
Well the skin literally grows from inside to out - so it's unlikely to trap any dirt.. Once formed the new skin layer will be drier than a wound making it less sticky - and so any remaining dirt just fell off. Probably. 87.102.13.144 ( talk) 19:15, 17 March 2008 (UTC)
There is also the possibility that while you were asleep your unconcious mind went to work scraping the wound against the bed sheets or instructing other parts of your body to scratch or rub the wound. Sleep study video reveals all sorts of directed movements as if we were actually or part awake.
So "tight junction protein 1" has a variety of names; how am I supposed to search effectively in PubMed? Is there some way of referring to this gene/protein in such a way that all synonyms are searched for at once?
Suppose I was given Ba(OH)2 at 0.5 M/L and was asked to find it's pOH. Since it's diprotic, I have to multiply the concentration by 2 right? If so, why do I multiply the concentration by 2? Why not the number of moles?
It will dissociate into Ba + 2OH right?
99.240.177.206 (
talk) 21:04, 17 March 2008 (UTC)
Years ago at a ski-lodge as after-dinner entertainment one of the guests carried out a trick involving a bit of chemistry, and I wonder whether anyone here knows how it was done. A piece of foil - the type found in some cigarette packs - had something done to it using paraffin/kerosene. The foil was then crumpled into a tight ball and placed in the palm of the hand. Within a few seconds it became too hot to hold. How was it done? —Preceding unsigned comment added by 196.2.113.148 ( talk) 21:56, 17 March 2008 (UTC)
Science desk | ||
---|---|---|
< March 16 | << Feb | March | Apr >> | March 18 > |
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. |
I was walking in the park with my boyfriend today and we could not identify the round bushy plants. They are in the background of this pic...Are they called pampa grass or somthing? W-i-k-i-l-o-v-e-r-1-7 ( talk) 00:58, 17 March 2008 (UTC)
Pacifica, California. I this Pampas Grass? W-i-k-i-l-o-v-e-r-1-7 ( talk) 03:40, 17 March 2008 (UTC)
My understanding of the BB is that before it there was nothing. A split second after the BB was hydrogen and maybe some hellium. And that the "Big Bang" was an explosion. Like they said on the History chanel, "the Universe" exploded into existence. So I mentioned this to a friend and said that the Big Bang was an explosion. And that before that there was nothing. He said I was wrong on both accounts. I all but called him a morron. He is not an ID. He is saying that the BB was not an explosion. My Q: If it was not an explosion then what was it? Q: what was it that exploded? What was there before the BB? thanks cris —Preceding unsigned comment added by Loach ( talk • contribs) 01:11, 17 March 2008 (UTC)
Thank you. That is more or less what I thought. Again, thank you for the help. —Preceding
unsigned comment added by
68.209.69.103 (
talk) 03:20, 17 March 2008 (UTC)
Do all eggs contain all of the amino acids, i.e., if forced to live in a survival situation with nothing but eggs how long could you survive with no other food? —Preceding unsigned comment added by 71.100.174.10 ( talk) 01:55, 17 March 2008 (UTC)
It sounds like you saying that human milk and supplemented cow's milk provide complete nutrition for indefinite survival. What I am really looking for are combinations of other foods that one might search for and find in a survival situation like egg of all types for protein and pine needles for Vit C. I'm sure there must be lots of combinations so I am trying to find out what they are. Is there a chart somewhere perhaps that shows all of the required essentals with overlays of the portions provided by various foods? —Preceding unsigned comment added by 71.100.174.10 ( talk) 07:43, 17 March 2008 (UTC)
If you supplemented your eggs with fruits and vegetables I think you'd do pretty well. If you knew your edible plants better than how to steal eggs (you might decimate the local population rather fast depending on where you are eating only eggs), you could also do well combining grains with beans or nuts for your protein. Variety would be the key, some meat, some fruit, etc., since there's no one food you can healthily live on forever. — Laura Scudder ☎ 16:31, 17 March 2008 (UTC)
What percentage of the ATP that is used in the body is used by the brain to run the sodium potassium pumps? Schmultz ( talk) 03:05, 17 March 2008 (UTC)schmultz
I want to know whether a molecule of water is removed when forming a phosphodiester bond between 2 DNA neucleotides. —Preceding unsigned comment added by 124.43.61.81 ( talk) 06:42, 17 March 2008 (UTC)
can infrared raman spectroscopy be used to detect bones in in vivo detection Neel shah556 ( talk) 08:22, 17 March 2008 (UTC)
Can whatever proceeded the Big Bang be defined as the state of minimum entropy?
why can't bernoulli's theorem be used to explain swing in cricket balls? -- scoobydoo ( talk) 14:19, 17 March 2008 (UTC)
because cricket is not a series of tubes? —Preceding unsigned comment added by 79.122.42.52 ( talk) 14:59, 17 March 2008 (UTC)
does temperature & fire have any relation? i mean, can i put out the fire of a burning body by cooling it?-- scoobydoo ( talk) 14:23, 17 March 2008 (UTC)
See our article on fire triangle. Fires do need heat. Rapidly cooling a fire (by adding lots of water for example) does put it out. Theresa Knott | The otter sank 15:25, 17 March 2008 (UTC)
Say you have a rigid object, such as a meter long titanium pole. When you pull one end, the other end presumably doesn't move instantly, because the force would have to move faster than the speed of light. It must be determined by the flexibility between the bonds of the titanium atoms/molecules. So ignoring the impracticality of its weight and size, if you were to pull a light-year, or some similar length, long titanium pole, the other end wouldn't notice it's been pulled until all the bonds are at their maximum pulling length? At that point, it still can't be instant if it's pulled further? Could anyone elaborate on what goes on? -- MacAddct 1984 ( talk • contribs) 15:16, 17 March 2008 (UTC)
I've been told that in the disease of Diabetes damage to the body is done by excessive amounts of either sugar or insulin molecules. Exactly what type of damage is done by excess amounts of either molecule besides oppressing the production/utilization of the other molecule that would cause the loss of toes? Is it damage to cell chemistry or structure, and if so of what does the damage consist? —Preceding unsigned comment added by 71.100.174.10 ( talk) 15:47, 17 March 2008 (UTC)
...to waste part of an onion, but are the green sprouts in the center edible ? That is, should I make the best of them or make compost of them ? StuRat ( talk) 18:07, 17 March 2008 (UTC)
I'm trying to track down the CAS numbers for 1-octen-3-ol. The best I could find is this page from a book about coffee. It lists the numbers [3391-86-4], (±) [50999-79-6], (R)-(-) [3687-48-7], (S)-(+) [24587-53-9]. The latter two clearly refer to the two enantiomers. My question is: what's the difference between 3391-86-4 and 50999-79-6? Both appear to refer to a mixture of the two enantiomers. Thanks, AxelBoldt ( talk) 18:43, 17 March 2008 (UTC)
Yesterday I cut myself in my finger whilst outside. It had some dirt in it so I attempted to clean it to the best of my ability. However some small about of debris was still stuck inside. After a while I stopped trying to get the debris out, thinking it would most likely do more harm than good to go out of my way to pick out the last bit of dirt. Come next morning my wound was magically clean. And when I say clean I mean, perfect pink/reddish skin with not a hint of dirt. I'm wondering, where did this dirt go? Is there some mechanism by which wounds are able to expel small amounts of debris? Did it just fall out whilst I was sleeping even though I couldn't get it out myself? PvT ( talk) 18:58, 17 March 2008 (UTC)
Well the skin literally grows from inside to out - so it's unlikely to trap any dirt.. Once formed the new skin layer will be drier than a wound making it less sticky - and so any remaining dirt just fell off. Probably. 87.102.13.144 ( talk) 19:15, 17 March 2008 (UTC)
There is also the possibility that while you were asleep your unconcious mind went to work scraping the wound against the bed sheets or instructing other parts of your body to scratch or rub the wound. Sleep study video reveals all sorts of directed movements as if we were actually or part awake.
So "tight junction protein 1" has a variety of names; how am I supposed to search effectively in PubMed? Is there some way of referring to this gene/protein in such a way that all synonyms are searched for at once?
Suppose I was given Ba(OH)2 at 0.5 M/L and was asked to find it's pOH. Since it's diprotic, I have to multiply the concentration by 2 right? If so, why do I multiply the concentration by 2? Why not the number of moles?
It will dissociate into Ba + 2OH right?
99.240.177.206 (
talk) 21:04, 17 March 2008 (UTC)
Years ago at a ski-lodge as after-dinner entertainment one of the guests carried out a trick involving a bit of chemistry, and I wonder whether anyone here knows how it was done. A piece of foil - the type found in some cigarette packs - had something done to it using paraffin/kerosene. The foil was then crumpled into a tight ball and placed in the palm of the hand. Within a few seconds it became too hot to hold. How was it done? —Preceding unsigned comment added by 196.2.113.148 ( talk) 21:56, 17 March 2008 (UTC)