How are scientists trying to produce absolute zero?

2007-03-24 9:50 pm
absolute zero is the condition in which atoms (particles) are completely still have no movement at all. I wish to find out how scientists are trying to achieve absolute zero since so far it has never been achieved

回答 (7)

2007-03-24 10:02 pm
✔ 最佳答案
You can get so far by exposing all your equipment to absolute zero using liquid helium. Then you do a trick of stopping spins using a hit of magnetism. Then you use a bunch of tricks that get you within a few hundreds of a degree K of Absolute zero. And then, and then,---
They aren't really sure what will happen beyond what they have achieved but it will be expensive to get there.
參考: The research fellow who worked for Corning Inc. was not hopeful of ever reaching absolute zero. He produced a sensor that would record the temperature all the way down (he hoped!!!
2016-12-15 9:04 pm
"How did we get a dwelling cellular out of nonliving be counted?" the respond to this question belongs to a various theory in a various medical discipline. Abiogenesis is a factor of molecular biology. Experiments have shown that, decrease than the atmospheric situations of the extra youthful earth, that is extremely achieveable for amino acids or perhaps nucleobases to have emerged needless to say. once you think approximately that existence, at its maximum user-friendly is purely chemistry, the belief of emergence would not look so far-fetched. "Genetic code is amazingly good in its duplication. " No, that is not any longer. .5% of your genome is created from mutations and you benefit extra as your cells replace themselves. it is partly via a phenomenon called "wobble" is which tRNA will from time to time bond to a codon it would not thoroughly correspond with. "the subsequent immensely troublesome bounce of religion one ought to take to have faith in evolution is the bounce from one-celled organisms to multi-celled organisms" there are various species of the dominion Protista that are multicellular. some slime molds bypass from unicellular to colonial to multicellular as portion of their existence cycles. that is quite no longer a bounce of religion in any respect. "it ought to look consumer-friendly to have faith that a frog ought to evolve right into a toad" using trouble-free names journeys up a great style of people whilst speaking approximately evolution. as an occasion, there is not any phylogenetic distinction between a frog and a toad. that is significant to recognize phylogeny as a fashion to trance branches interior the evolutionary tree. "Evolution would not clarify what varieties of species lie between fish and amphibians, amphibians and reptiles," this is a trouble-free false impression, amphibians did no longer branch off into reptiles. "reptiles and birds" Birds are reptiles. they are the only extant contributors of the clade Dinosauria. lower back, phylogeny is significant. "birds and mammals" Mammals did no longer branch from birds. Mammals share a trouble-free ancestor with reptiles. "mammals and self sufficient people" people are mammals. "why are not there any nevertheless interior the attitude of evolving?" All species are continually evolving. "each widespread organism that has ever lived has in good shape suitable into an extremely specific group with quite no exceptions." because's what we invented communities for. there has been existence for plenty longer than there has been taxonomy.
2007-03-25 12:37 am
It is a fundamental law of physics (third law of thermodynamics) that absolute zero is never achieved on any physical matters. The physical reason behind it is found on quantum mechanics. Any matters (atoms, sub-atomic particles) must have a ground state of energy, which is the minimum amount of energy a particle can possess. So, there is a minimum temperature associated with the ground state energy. To go further, a minimum energy is required to satisfy the Heisenburg uncertainty principle: (delta E * delta t) greater than or equal to planck's constant, h.
2007-03-24 10:22 pm
they just use a very cold refrigirator type thing and probably use magents to make it levitate so it doesnt conduct heat
2007-03-24 10:02 pm
So far as I know, every reputable scientist believes it to be impossible. To make something colder than it is, you need someplace colder for the heat to migrate to. To produce absolute zero would require something even colder.
2007-03-24 10:01 pm
Absolute zero is approximately minus 454 degrees farenheit. It is the temperature when molecular movement stops
2007-03-24 9:53 pm
absolute zero is impossible. there would be no way to measure it. any attempt would heat it beyond absolute zero.


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