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How can i determined amylose and amlopectine in starch sample. — Preceding unsigned comment added by 78.138.24.1 ( talk) 10:19, 23 April 2012 (UTC)
That's the claim of household bleaches and surface cleansers etc - but are they doing the same thing that antibiotics are doing? What of the one per cent of germs that survive? Are we breeding supergerms? Bleach-resistant e-coli? Chlorine-tolerant salmonella bacteria?
Ta
Adambrowne666 ( talk) 11:34, 23 April 2012 (UTC) There is a major difference between antibiotics and bleach: the 1st is a bacteria-only poison, working by a very specific damage it deals to the bacteria protein making process. Without protein making on the run no living cell can, well, stay a living cell. It dies and eventually decompose or is eaten by a still-living cells. Bleach is a different thing altogether: it is a highly reactive compound. It reacts with the cell membrane, dissolving it. It reacts with many, many molecules inside the shattered cell, destroying anything and everything. It consumes the cell and it contents. From this it is clear that, unlike antibiotics, bleach is poison for every living cell, not just bacteria. Since bacteria does not live in a protective layer of dead skin as we do, contact with fairly low concentrations of bleach for several dozen minutes kills it. 109.65.9.22 ( talk) 13:10, 23 April 2012 (UTC)
Let's say you have two particles that are entangled. If you impart kinetic energy to one particle, will kinetic energy be imparted to the other particle? ScienceApe ( talk) 16:55, 23 April 2012 (UTC)
Looking for the name of a Female scientist , who was a pioneer nd gave and lost life to science. She was homeless in early childhood. She grew up in a European city.
I thought Marie curie but looks like some other fits the description. Any help will be appreciated. I searched google/wikipedia with no luck. — Preceding unsigned comment added by 183.83.244.183 ( talk) 17:08, 23 April 2012 (UTC)
From Accelerating change:
Have any studies attempted to assess the accuracy of this claim, i.e. to determine whether historical statistics still support the Law of Accelerating Returns once adjusted for the (possibly superlinear, and possibly time-lagged) effect of an increased population? Neon Merlin 17:21, 23 April 2012 (UTC)
"The carminic acid used to produce the pigment can also be extracted from various microbes engineered for the purpose." This is unreferenced- can I get some further information on microbial production of this compound? 71.223.9.1 ( talk) 18:46, 23 April 2012 (UTC)
1)Till what age an average human gets taller?I mean, after what age the human height generally stops to increase?
2)Is the death is certain for every human being?.If it is provided all the necessities and is cured from all diseases then how the death would come? Max Viwe | Wanna chat with me? 19:52, 23 April 2012 (UTC)
which is year old of the donkey when it start to bray? it's bray from the start when it's born? thank you. 95.35.155.88 ( talk) 21:16, 23 April 2012 (UTC)
Science desk | ||
---|---|---|
< April 22 | << Mar | April | May >> | April 24 > |
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. |
How can i determined amylose and amlopectine in starch sample. — Preceding unsigned comment added by 78.138.24.1 ( talk) 10:19, 23 April 2012 (UTC)
That's the claim of household bleaches and surface cleansers etc - but are they doing the same thing that antibiotics are doing? What of the one per cent of germs that survive? Are we breeding supergerms? Bleach-resistant e-coli? Chlorine-tolerant salmonella bacteria?
Ta
Adambrowne666 ( talk) 11:34, 23 April 2012 (UTC) There is a major difference between antibiotics and bleach: the 1st is a bacteria-only poison, working by a very specific damage it deals to the bacteria protein making process. Without protein making on the run no living cell can, well, stay a living cell. It dies and eventually decompose or is eaten by a still-living cells. Bleach is a different thing altogether: it is a highly reactive compound. It reacts with the cell membrane, dissolving it. It reacts with many, many molecules inside the shattered cell, destroying anything and everything. It consumes the cell and it contents. From this it is clear that, unlike antibiotics, bleach is poison for every living cell, not just bacteria. Since bacteria does not live in a protective layer of dead skin as we do, contact with fairly low concentrations of bleach for several dozen minutes kills it. 109.65.9.22 ( talk) 13:10, 23 April 2012 (UTC)
Let's say you have two particles that are entangled. If you impart kinetic energy to one particle, will kinetic energy be imparted to the other particle? ScienceApe ( talk) 16:55, 23 April 2012 (UTC)
Looking for the name of a Female scientist , who was a pioneer nd gave and lost life to science. She was homeless in early childhood. She grew up in a European city.
I thought Marie curie but looks like some other fits the description. Any help will be appreciated. I searched google/wikipedia with no luck. — Preceding unsigned comment added by 183.83.244.183 ( talk) 17:08, 23 April 2012 (UTC)
From Accelerating change:
Have any studies attempted to assess the accuracy of this claim, i.e. to determine whether historical statistics still support the Law of Accelerating Returns once adjusted for the (possibly superlinear, and possibly time-lagged) effect of an increased population? Neon Merlin 17:21, 23 April 2012 (UTC)
"The carminic acid used to produce the pigment can also be extracted from various microbes engineered for the purpose." This is unreferenced- can I get some further information on microbial production of this compound? 71.223.9.1 ( talk) 18:46, 23 April 2012 (UTC)
1)Till what age an average human gets taller?I mean, after what age the human height generally stops to increase?
2)Is the death is certain for every human being?.If it is provided all the necessities and is cured from all diseases then how the death would come? Max Viwe | Wanna chat with me? 19:52, 23 April 2012 (UTC)
which is year old of the donkey when it start to bray? it's bray from the start when it's born? thank you. 95.35.155.88 ( talk) 21:16, 23 April 2012 (UTC)