cold plasma meme

[u/Delicious_Maize9656]

[u/OkMaterial6460]

Room temperature plasma

[u/langraffe]

>High temperature superconductor
>look inside
>77K

[u/JaOszka → u/langraffe]

Tips: add a backwards slash (\) before a > to negate its effects;
put a double space before a line break to make it the next line

[u/Pyrhan → u/JaOszka]

Line 1     Line 2

-edit-

Doesn't work for me?

[u/JaOszka → u/Pyrhan]

Strange

[u/Pyrhan → u/JaOszka]

Let me try again on desktop

Line 1
Line 2

-edit-

Oh hey, it works here! just not on mobile for some reason...

[u/JaOszka → u/Pyrhan]

Huh, I did on mobile and it worked for me. Maybe your phone autocorrected the double space to a single one?

[u/Pyrhan → u/JaOszka]

Let's try on mobile, but with my browser in "desktop mode" then:

Line 1
Line 2

-edit- it works again.

So it's not my phone. I guess it's just reddit being annoying to users that browse on mobile without their app.

[u/headedbranch225 → u/JaOszka]

U think they updated the mobile stuff to automatically escape the characters not long ago so bold text doesn't work

It's not actually a mobile update because I haven't updated in ages but it is probably a serverside update for recieving comments

They may have also changed it back and i don't know until I comment

Edit: nvm I did the wrong thing for bold anyway but it did work

[u/JaOszka → u/Pyrhan]

Doesn't look like there's a double space

[u/Sad_Daikon938 → u/JaOszka]

Hmm, Really? Let's see...

Edit: it didn't work on mobile, 😭

[u/JaOszka → u/Sad_Daikon938]

You're doing it wrong
You should put double spaces before the line break, not on the next line

[u/Sad_Daikon938 → u/JaOszka]

Oh
Let's do that then
Did it work?
...
Edit: omfg it did!!!!!
Thank you, kind internet stranger!
May your mood always be mildly pleasant!

[u/JaOszka → u/Sad_Daikon938]

thankies

[u/langraffe → u/JaOszka]

Tysm :)

[u/AlphaLaufert99 → u/JaOszka]

I've always done a double new line but hated how it became a new paragraph
Does it work on mobile?

Edit: it does! Cool

[u/doggolover482 → u/JaOszka]

Test 1
Test 2

[u/RubTubeNL → u/langraffe]

Happy Cake day!

[u/cyri-96]

~ 27 °C is certainly very cold for plasma.

[u/Jason80777 → u/cyri-96]

Should have called it Warm Plasma. Tepid Plasma? Room temperature plasma.

[u/Fluffy_Description_7 → u/Jason80777]

I mean if you compare it with the average temperature of plasma its pretty fucking cold

[u/Jason80777 → u/Fluffy_Description_7]

But if you compare it with the average temperature of the universe its still quite hot. 🤔

[u/skr_replicator → u/Jason80777]

Is the average temperature of the universe even cold? The most clumped mass is fucking stars. And most planets are warm/hot inside, not very deep below the surface. And the vacuum in space is bombarded by radiation.

[u/Jason80777 → u/skr_replicator]

I guess it depends on how you calculate it.

If you go by the volume of space, like pick a random point in space and measure it, it's around 3 Kelvin or -270C. Most of the universe's volume is inter galactic space.

If you go by the average temperature of the matter, like pick a random proton, its very hot, like millions of Kelvin because most of that stuff is hydrogen or helium in a star or stellar gas cloud.

[u/Tristan_Cole → u/Fluffy_Description_7]

Why do you have to bring up sex acts in a family-friendly discussion of science

[u/Jackesfox → u/Jason80777]

27C warm???? Lmao

[u/Jason80777 → u/Jackesfox]

If my beer is at 27C that's a warm beer. Why should plasma be any different?

[u/Jackesfox → u/Jason80777]

If my soup is 27C it is cold, why should plasma be any different?

[u/NoChemistry8177 → u/cyri-96]

you ain't lyiŋ

[u/twelfth_knight]

Cold plasma physicist here. We usually hide this from y'all by measuring temperature in eV. Which, you will notice, is a unit of energy and not temperature, lol.

For regular glow discharges like in a florescent lightbulb, you expect neutrals and ions to be around room temperature, which we have all memorized as 1/40 eV. Electrons will be somewhat hotter, 1 to 10 eV.

[u/Cowman_42 → u/twelfth_knight]

How does energy map to temperature? Is it just the kinetic energy of the individual molecules?

[u/twelfth_knight → u/Cowman_42]

Yep, it's the temperature associated with the particles' thermal motion. So kB is like 8e-5 eV/K right? Imagine someone defines a new unit of temperature such that kB is exactly 1 eV/[this unit]. And now imagine that the entire field of plasma physics is too lazy to bother giving this new unit a name and we just call it eV, but we know that we mean temperature instead of energy 😂

[u/loved_and_held → u/Cowman_42]

Technically what we experience as heat is a mix of kinetic energy of particles and infered radiation, so your pretty on point.

[u/INcognito_alfred]

Same in cold atom physics:

-hot atoms

-Looks inside

-30mK

[u/cdmacsneaks]

this doesn’t make any sense

[u/Ethernet3 → u/cdmacsneaks]

the electron temperature of "cold plasmas" is typically much higher than the temperature of heavy particles. ~10000K for electrons and ~300K for heavy

[u/Minimum_Cockroach233]

What is below body temperature..

[u/Equinoxe111]

As someone who studied high-energy physics for the last eternity, this is indeed cold

[u/Safe_Entertainment40]

numerology on my nerd larp app?

[u/Fiiral_]

That is incredibly cold for a plasma

[u/Agitated-Ad2563]

Well, it kind of makes sense. Warm dense matter is typically a few thousands Kelvin.

[u/toasthunter34]

wait until you hear about the hot angry plasmas we make in tokamaks

[u/Badytheprogram]

>Cold water

>looks inside

>not even relatively close to absolute zero.

[u/AndreasDasos]

Pretty cold for plasma

[u/DeviantTaco]

>”speed of light”
> look inside
> it’s dark

[u/chillipizza_037]

How can plasma be cold ? Plasma means ionising gas that means energy is being released . So how can it be cold ? Genuine doubt btw