Posted on 08/23/2017 12:13:26 AM PDT by Enchante
Electrons have been caught flowing through graphene like a liquid, reaching limits physicists thought were fundamentally impossible.
This type of conductance is known as 'superballistic' flow, and this new experiment suggests it could revolutionise the way we conduct electricity.
If that's not crazy enough, the super-fast flows actually occur as a result of electrons bouncing off each other, something that high school physics tells us should slow conductivity down.
(Excerpt) Read more at sciencealert.com ...
Of course it’s only one study, and there have been many “discoveries” over-hyped before, but this sounds potentially very important.
Of course it’s only one study, and there have been many “discoveries” over-hyped before, but this sounds potentially very important.
Insanely superconductive? Since a superconductor has zero resistance it either is a superconductor or it isn’t. If you have a box that is supposed to be empty or full of balls it isn’t insanely empty when there are only 5 balls left.
Is there yet any real life application of graphene?
It’s been touted as a magical substance for years, yet I don’t know of any commercial products that use it.
Now if they can only get it to work at room temperature...
The article has all the literary sophistication of a teen girl’s facebook page.
Sir Geim has had Russian family members interred in Siberia, etc..
Picture postcards from Rugen:
https://flic.kr/p/XHEPuP
https://flic.kr/p/XRSCbu
https://flic.kr/p/WGowm8
https://flic.kr/p/XEWCWb
That’s why I liked it. /s
That’s why I liked it. /s
There won’t be until they can come up with a way to produce it in large quantities cheaply.
It currently is limited to lab quantities.
If electrons are bouncing of each other and then increase in speed and energy, it means that additional energy must come from some outside force or it violates the law of conservation of energy. Of course you can just claim some quantum effect and create a 50 step formula to prove your point.
Write a line with a pencil on a piece of paper. Put a piece of cellophane tape on it and pick it up. You have graphene.
The really interesting work with graphene is on how they build it into different lattice structures and how those are being used. I don’t know all the details of what’s being done at the moment, but here’s a partial list I just dug up.
https://en.wikipedia.org/wiki/Potential_applications_of_graphene
That is graphite.
I am no chemist, but graphene is different (I think.)
Graphene biosensors - finally a commercial reality .
Thanks for the link. One of the foot notes is the first I have seen of an actual commercial application of graphene.
Of course it would be in medicine where price is only marginally an object.
You are correct.
I did read a year ago I think that they did find Graphene in nature.
They found it in the sooty smoke that you get from the inefficient combustion of plastic.
However this graphene was in too short of chains and small amounts that would not be useful.
Graphene will soon be as world changing as unobtanium.
This Scientist Invented a Simple Way to Mass-Produce Graphene
http://www.freerepublic.com/focus/f-bloggers/3270649/posts
Microwave Is Used As A Way To Make High-Quality Graphene
http://www.freerepublic.com/focus/f-bloggers/3466249/posts
Technically, it is graphene (after you whittle it down with more tape applications until you have a layer just one atom thick), just not entirely useful around the house. This is how the first graphene examples where studied.
“There is the classic sticky tape method which was first used by researchers at the University of Manchester, UK and which won them the Nobel Prize for Physics in 2010.[1] Essentially you deposit some graphite onto a surface, such as paper, using a pencil and then use sticky tape to carefully remove a layer of graphite from the paper. Then use another piece of tape to remove a thinner layer of graphite from the first piece of tape. Repeat this until you end up with a layer of graphite only a few atoms (or hopefully only one) thick.”
https://chemistry.stackexchange.com/questions/33904/can-i-make-my-own-graphene-at-home-in-my-kitchen
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