h a l f b a k e r yI never imagined it would be edible.
add, search, annotate, link, view, overview, recent, by name, random
news, help, about, links, report a problem
browse anonymously,
or get an account
and write.
register,
|
|
|
lensable (non IR!) warmth used as a cryopreservative
some frequencies of warmth are lensable, collimate (or coherentize) these to produce warmth at tissue that replaces stochastic warmth, then modify the waveshape to do antinodal effects which then might be cooling, raster scan the tissue with antinodes to maintain cooling | |
some frequencies of warmth are lensable (MIT, economist), collimate (or coherentize) these to produce warmth at tissue to replaces the preexisting stochastic warmth,
Once warmed with coherent warmth, modify the waveshape to do antinodal effects which then might be cooling, then raster scan the tissue
with antinodes to maintain cooling
you could then cool the entire thing, with the advantage of interior node cooling as well as externally based cooling
This preserves tissue better than some other approaches.
I suppose that an immediate driver of this technology is that this could be used to cool CPUs so they can be run faster.
using frequencies of warmth (different than IR!) with similar to light optics
http://news.mit.edu...eat-like-light-0111
[beanangel, Sep 26 2016]
Laser cooling
https://en.wikipedi.../wiki/Laser_cooling
The real-life version of these incoherent (!) ramblings [notexactly, Sep 27 2016]
Please log in.
If you're not logged in,
you can see what this page
looks like, but you will
not be able to add anything.
Destination URL.
E.g., https://www.coffee.com/
Description (displayed with the short name and URL.)
|
| |
This is bollocks, and I claim my £5. |
|
| |
If I understand correctly, you are proposing to warm
things up "coherently" so that they can then be
cooled using an anti-phase IR source. But I am pretty
sure that "coherent warming" doesn't exist for any
practical situation. I believe that some very small,
carefully-controlled bits of matter can be
"coherently" warmed; but not big things like whole
cells or CPUs. |
|
| |
Most (er, some...) of these words make sense on their own.
But in this particular arrangement, they become incomprehensible. |
|
| |
have read about quantum linked photons, notably at a thing new scientist describes as a Quantum Camera. the photons reach an object, and then the photons they are linked to form an image, even absent a reflective or refractive optical pathway. it is possible that lensed warmth, as described at the MIT article could be quantum linked, giving the ability to turn warmth on and off at a distance (!), thus creating a kind of cooling if turning off lensable warmth that equals ambient temperature causes coolness |
|
| |
//creating a kind of cooling if turning off lensable
warmth that equals ambient temperature causes
coolness// |
|
| |
Hey, he's right!1! If I turn off the heater, it gets
cooler. It's some kind of voodoo. |
|
| |
I urge people to visit the link to the MIT press release. it describes how a particular group of frequencies of warmth, differing from IR, can be lensed. they would like to apply it to near-computerchip application, thermoelectric modules of some size (cm?) |
|
| |
that said, i think that lensed warmth could cause brownian motion to be more regular, sort of like linear wiggles, similar to phonons (plasmonics) being able to regularize brownian motion could cause frozen things to be much less degraded while they remain frozen, which benefits tissue cryopreservation. |
|
| |
The MIT thing was an interesting read. As context for this idea, atoms in a solid are vibrating, more if they're hot. The vibrations can move, similar to sound waves. The frequencies are higher than sound waves, and the waves normally only travel nanometers, but they're looking at how to make them behave more like sound waves |
|
| |
[beanangel], I think this idea might be easier to read if you make the following changes to the summary: |
|
| |
- replace the first comma with a semicolon
- put an "and" after the last comma. |
|
| |
That would help with the form. I'm still thinking about the content. |
|
| |
OK. I've thought about the content. |
|
| |
1. My first thought was "how are you going to make pre-existing stochastic warmth go away?" [notexactly]'s link helps with that; you try to reduce the "variance in the velocity distribution of the particles". The mechanism for this involves setting the wavelength of a pair of lasers to a frequency just below the frequency associated with an electronic transition. Now, IIRC, that frequency is going to be different for each chemical element (because otherwise, spectroscopic analysis wouldn't work). And you need more than one element to make tissue - or, I think, CPUs. For example, in the case of living tissue, I expect you'd need one laser pair tuned for carbon, but then you'd need another pair for H and another pair again for O, and would they not interfere with each other? |
|
| |
2. Where there's a node, there's a pair of antinodes. Unless all the wavelengths concerned are long enough, those antinodes, (which will be hot, won't they?), are going to fall within the body you're trying to cool, and wouldn't heat then leak by conduction back into the cool points? So, how long are the wavelengths we're talking about here? |
|
| |
I think that may be a little unfair, [MB]. I think (and I admit that [beany]'s prose style makes this a little uncertain) that he's not talking about removing an external heat source, but about corralling pre-existing vibrations within the medium to be cooled. Presumably, there would be some extra entropy created somewhere outside the magic fridge, but I don't think [beany] is denying that. |
|
| |
I'm not saying that it would work - only that it's not dumb in the specific way that you're implying it's dumb. |
|
| |
// it's not dumb in the specific way that you're
implying it's dumb// marked-for-tagline. |
|
| |
[perinax] figured it out, orderly warmth is easier to cool, also, it could be modulated at greater interior distances to do better cryogenics. |
|
| |
That said it is even possible lensed warmth would create a new kind of brownian motion, with much more order, almost like plasmonics or phonons. that could make it even more coolable |
|
| |
getting people to do this more rapidly, perhaps it could be used on frozen vegetables to make them even fresher tasting ...an application that improves the technology to benefit cryogenics. |
|
| |
Okay, I have this thing going through my head I don't know what to do
with. Clearly with the likes of Bose-Einstein condensates and things
happening with lasers or something, it is possible to cool something
really, really tiny. If you can do that, is heat not going to pile into that
tiny volume and cool the surroundings? Then if it's cooled again, that
will happen again and so forth. Does that not mean that there could be
a form of refrigeration which involves cooling very small spots in
something and then have heat average out at ever-lower
temperatures? Or, does that cooling involve heating the surroundings? |
|
| |
The laser thing involves scattering laser light in such a way it's not as good for laser cooling anymore. Whatever absorbs the light would heat up, though maybe it could be released into space |
|
| |
rather than reply sensibly, I am wondering if protein crystallization (for structure determination) would be different with lensed warmth, or cooling based on lensed warmth. |
|
| |