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Author Topic: Science Thread (and !!SCIENCE!! Thread!)  (Read 34777 times)

Naturegirl1999

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Re: Science Thread (and !!SCIENCE!! Thread!)
« Reply #450 on: September 01, 2019, 03:31:22 pm »

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wierd

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Re: Science Thread (and !!SCIENCE!! Thread!)
« Reply #451 on: September 04, 2019, 09:22:13 pm »

https://physicsworld.com/a/superconductivity-at-the-boiling-temperature-of-water-is-possible-say-physicists/

I hope it pans out.  While exotic, it could lead to interesting developments in computing.
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Superdorf

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Re: Science Thread (and !!SCIENCE!! Thread!)
« Reply #452 on: September 04, 2019, 09:26:16 pm »

And think of the sci-fi potential! A world where the fastest computers run on boiling water... it'd be steampunk and cyberpunk, both at the same time. Best of both worlds!
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Reelya

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Re: Science Thread (and !!SCIENCE!! Thread!)
« Reply #453 on: September 04, 2019, 09:32:03 pm »

it could also be the most English thing ever. You boil a cup of tea to do your computing.

smjjames

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Re: Science Thread (and !!SCIENCE!! Thread!)
« Reply #454 on: September 04, 2019, 09:46:58 pm »

Actually, the article says that the material is superconducting up to the boiling point of water, so, that means room temp superconductors. Looking at Wikipedia, even the highest current known superconductor temp is well below zero.

Edit: With one major catch, it needs to be under pressures only found in planetary cores, or the depths of gas giant atmospheres.
« Last Edit: September 04, 2019, 09:49:47 pm by smjjames »
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Superdorf

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Re: Science Thread (and !!SCIENCE!! Thread!)
« Reply #455 on: September 04, 2019, 10:00:31 pm »

Ohh. High-pressure superconductors. That's... slightly less entertaining.
Ah well. Maybe somebody'll discover cybersteampunk some other time.
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Bumber

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Re: Science Thread (and !!SCIENCE!! Thread!)
« Reply #456 on: September 04, 2019, 10:23:28 pm »

Jupiter pressure cooker cybersteampunk?
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wierd

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Re: Science Thread (and !!SCIENCE!! Thread!)
« Reply #457 on: September 04, 2019, 10:25:33 pm »

The thing is though, some time back there was a claimed breakthrough in the production of metallic hydrogen using diamond anvils.

https://www.sciencealert.com/french-scientists-believe-they-have-created-metallic-hydrogen

IIRC, they said it was meta-stable after releasing the pressure.

this material is meant to simulate metallic hydrogen in order to produce the superconductivity.  If it obeys similarly to the claimed discovery of metallic hydrogen (The sample mysteriously got stolen/vanished), and is meta-stable after synthesis at normal pressures, it could be capped in a high pressure environment.


Not useful for powerlines, but computing is a different beast.  (instead of a huge honking heatsink, it would have a reinforced internal-strain package.)


But if you insist on Jupiter's atmosphere... There's already jupiter-brains as a scifi fixture. ;P
« Last Edit: September 04, 2019, 10:31:27 pm by wierd »
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Arx

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Re: Science Thread (and !!SCIENCE!! Thread!)
« Reply #458 on: September 05, 2019, 03:34:32 am »

(The sample mysteriously got stolen/vanished)

"I swear, when we took the pressure off the hydrogen it was a stable solid! It can't have evapourated, it must have been theft!"
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Reelya

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Re: Science Thread (and !!SCIENCE!! Thread!)
« Reply #459 on: September 05, 2019, 06:05:02 am »

I think we're talking about the sample from the American team 3 years ago. What happened was the diamond anvil they were using broke, and the sample dissipated.

EDIT: I'd be very surprised if any samples of this stuff could be brought back to room temperature and pressure.
« Last Edit: September 05, 2019, 06:07:19 am by Reelya »
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Naturegirl1999

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Re: Science Thread (and !!SCIENCE!! Thread!)
« Reply #460 on: September 05, 2019, 03:19:31 pm »

Iím curious, I did research and found out that burning plastic can interact with the air and make carbon monoxide, but Iím curious what would happen if you put plastic in a vacuum and applied 100% oxygen, would it make CO2 and H2O like the balancing equation
C10H8O4 + 10O2(g) = 10CO2(g) + 4H2O
suggests?
source for where I got the balancing equation
source for burning plastic being dangerous because of production of carbon monoxide, carbon dioxide, dioxins and furanes
I am not going to burn plastic, just curious if it could be done in a vacuum
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Reelya

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Re: Science Thread (and !!SCIENCE!! Thread!)
« Reply #461 on: September 05, 2019, 03:32:27 pm »

That's not really required. You can react Carbon Monoxide with water vapor to form CO2 and hydrogen gas, then you could burn the hydrogen gas to get some of the energy back

https://en.wikipedia.org/wiki/Water-gas_shift_reaction
« Last Edit: September 05, 2019, 03:35:37 pm by Reelya »
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Iduno

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Re: Science Thread (and !!SCIENCE!! Thread!)
« Reply #462 on: September 05, 2019, 04:00:25 pm »

Iím curious, I did research and found out that burning plastic can interact with the air and make carbon monoxide, but Iím curious what would happen if you put plastic in a vacuum and applied 100% oxygen, would it make CO2 and H2O like the balancing equation
C10H8O4 + 10O2(g) = 10CO2(g) + 4H2O
suggests?

Theoretically, but it's unlikely to actually work. Assuming it's actually a one-stop process like that formula shows (it's more likely a multi-stage process that's been simplified), it would require 10 oxygen molecules to hit one plastic molucule at the same time. If it's several steps, you'd need to have oxygen in the vacuum for an extended period of time with enough energy to keep the reaction going; long after it could be considered any type of vacuum. Doing it in a relatively-oxygen-rich environment like air would be more likely to get the results you're expecting. And we already know how that one turns out.
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Trekkin

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Re: Science Thread (and !!SCIENCE!! Thread!)
« Reply #463 on: September 05, 2019, 04:10:50 pm »

I am not going to burn plastic, just curious if it could be done in a vacuum

Well, to be pedantic, if you're adding gaseous oxygen, it's no longer a vacuum, so by definition no.

The more informative answer is mostly what Iduno said. Plastics are polymers, so as different subunits react, products of different lengths will form, which are sterically biased toward forming different compounds as the reaction continues. There is no guarantee that the reaction will run to completion before a volatile intermediate forms and evaporates away from the heat.
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Naturegirl1999

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Re: Science Thread (and !!SCIENCE!! Thread!)
« Reply #464 on: September 05, 2019, 04:34:12 pm »

Thank you for the information. I have another thought not connected to plastic

I have a thought of an experiment involving raising flies and grasshoppers in the same environment, figuring out if fly eggs stick to grasshoppers, figuring out whether the larvae would eat the grasshoppers if they hatch on them, figuring out whether the adults who ate grasshoppers as larvae would selectively lay eggs on grasshoppers, since they hatched from grasshoppers? The idea is to test how insect parasitism may have evolved. Part of the idea is that there are some flies that parasitism crickets, and that the hawthorn fly sometimes lays eggs on apples and those that lived on apples will lay eggs on apples, so my idea was if something similar happened in various lineages of flies with grasshoppers and crickets.
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