Timeline for Is it possible to obtain a cold radiating material?
Current License: CC BY-SA 3.0
30 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 22, 2017 at 16:06 | comment | added | Hot Licks | I have known some people who could suck the warmth out of a room. | |
| Jul 22, 2017 at 11:50 | vote | accept | Mathis | ||
| Jul 22, 2017 at 11:50 | vote | accept | Mathis | ||
| Jul 22, 2017 at 11:50 | |||||
| Jul 22, 2017 at 11:49 | vote | accept | Mathis | ||
| Jul 22, 2017 at 11:50 | |||||
| Jul 22, 2017 at 11:41 | vote | accept | Mathis | ||
| Jul 22, 2017 at 11:49 | |||||
| Jul 22, 2017 at 6:16 | comment | added | Cort Ammon | For an interesting perspective, many who sought to understand thermodynamics when science was younger thought cold did radiate. Rutherford explored the idea of "frigid rays" for quite some time until it became clear that the equations for them were the exact same equations as "heat rays" Only then did the idea that cold is the absence of heat truly emerge. | |
| Jul 22, 2017 at 4:35 | comment | added | Nat | Laser cooling, if you wanna emit cooling radiation. That said, this is the wrong direction for addressing global warming, assuming that you're working with anything like modern technology. | |
| Jul 22, 2017 at 3:49 | comment | added | apaul | To simplify things... You don't make things cold you make them less hot. | |
| Jul 22, 2017 at 2:40 | answer | added | fenix d.Anconia | timeline score: 3 | |
| Jul 22, 2017 at 2:24 | answer | added | Thucydides | timeline score: 4 | |
| Jul 22, 2017 at 1:41 | answer | added | EvilSnack | timeline score: 2 | |
| Jul 21, 2017 at 23:29 | comment | added | benxyzzy | Fungus the Bogeyman by Raymond Briggs featured bricks which absorbed heat from their environment. The general theme was that bogeymen found comfort in the opposites of their above-ground human counterparts. Thus, while we have fireplaces, they preferred 'cold places' built from cold-producing bricks. | |
| Jul 21, 2017 at 23:23 | comment | added | can-ned_food | Maybe I'll make this an answer, but you probably want a different form of heat transfer than radiation i.e. via electromagnetic waves in space. Convection would allow you to have particulate cold. You'd need a core at absolute zero, too — like a black hole in heat distribution. | |
| Jul 21, 2017 at 22:15 | answer | added | Justin Ohms | timeline score: 0 | |
| Jul 21, 2017 at 21:52 | comment | added | HopelessN00b | A cold-radiating material has the same problem as a darkness-radiating material, which is to say that both conditions are the absence of something, and you can't radiate out an absence of something. | |
| Jul 21, 2017 at 21:08 | comment | added | Jammin4CO | @hszmv It is a theory. rogermwilcox.com/darksucker.html | |
| Jul 21, 2017 at 20:22 | comment | added | Solomon Slow | @R.Joshi, Radiation is energy that travels in straight lines. "Cold" is a lack of energy. A cold object absorbs energy from warmer objects that it happens to touch, and it absorbs any radiated energy that happens to come its way. Everything around you is radiating energy. If you stand next to a wall of ice, and you happen to feel "coldness" in that direction it's probably mostly because you are feeling cold air that touched the ice wall, and maybe, on a really hot day, because you feel less radiated energy from the ice wall than you feel from everything else around you. | |
| Jul 21, 2017 at 19:07 | comment | added | Mazura | Because cold doesn't exist. | |
| Jul 21, 2017 at 17:34 | answer | added | Pak | timeline score: 2 | |
| Jul 21, 2017 at 15:01 | answer | added | paparazzo | timeline score: 5 | |
| Jul 21, 2017 at 15:00 | history | edited | Brythan | CC BY-SA 3.0 |
deleted 14 characters in body
|
| Jul 21, 2017 at 14:51 | comment | added | Michael | I don't think that's actually the cause of global warming... | |
| Jul 21, 2017 at 13:30 | comment | added | hszmv | For heat evacuation, it doesn't work like that. Heat is nothing more than energy which is neither created nor destroyed. In the case of endothermic reactions, as explained elsewhere in this thread, the reaction requires energy to make the bonds and will chill its surroundings. Until you break that chemical bond, that energy is stored, no material disposal required. Cold is to Heat what Dark is to Light, i.e. a product of a lack of energy. You can no more make cold than you can turn on a "dark-bulb" that makes darkness. | |
| Jul 21, 2017 at 13:09 | history | edited | Secespitus | CC BY-SA 3.0 |
Forgot to add a question mark to the end of the question title in my last edit...
|
| Jul 21, 2017 at 13:08 | answer | added | Joe Bloggs | timeline score: 19 | |
| Jul 21, 2017 at 13:02 | comment | added | R.Joshi | Any material that is colder than its environment surely "radiates" cold. | |
| Jul 21, 2017 at 12:58 | answer | added | Radovan Garabík | timeline score: 26 | |
| Jul 21, 2017 at 12:49 | comment | added | Raditz_35 | You already mentioned the refrigerator. Check out en.wikipedia.org/wiki/Thermoelectric_cooling . I don't know what you are asking - it sounds a bit like "how do I build a refrigerator that doesn't consume too much energy" - without a definition of what would be too much. But the problems with your question do not end there. You are way too vague. How cold do you want your stuff to get? What do you want to cool exactly? What temperature does it have now? What is an huge amount of heat? What do you mean by "radiating"? What is too much energy? What is "effectively" cooling? ... | |
| Jul 21, 2017 at 12:35 | history | edited | Secespitus | CC BY-SA 3.0 |
Fixed grammar and formatted a bit
|
| Jul 21, 2017 at 12:32 | history | asked | Mathis | CC BY-SA 3.0 |