The Sun is larger than you might think
Вставка
- Опубліковано 28 чер 2024
- A quick overview of the extent of the Sun - the photosphere, solar corona and the Heliosphere.
Contents:
00:00:00 - Gravity
00:00:47 - Sunspots
00:01:58 - Solar Corona
00:02:59 - Coronal Holes
00:04:03 - Heliosphere
00:04:48 - Summary
Credits
Video of magnet on CRT TV by Roger Nieh from Science'n'me
/ @sciencenme
Sun “Forcefield” Animation created by Miloš Mičík
Available at github.com/milos7250/Internsh...
Made with the Unity game engine
Using Ultimate 10+ Shaders
Available from assetstore.unity.com/packages...
Additional Media
[1] February 8 Sunrise Time-lapse (User: idioterna)
commons.wikimedia.org/wiki/Fi...
[2] First Image of a Sunspot by the Daniel K. Inouye Solar Telescope
nso.edu/telescopes/dkist/inou...
[3] Sunspot in active region AR11084 by the Swedish 1-m Solar Telescope
commons.wikimedia.org/wiki/Fi...
[4] Total Solar Eclipse on 2017-08-20 by Michael S. Adler (User: Msadler13)
commons.wikimedia.org/wiki/Fi...
[5] Eclipse in 1980, India (DI00450) by the University Corporation for Atmospheric Research
[6] Journey to the Heliopause II by NASA’s Goddard Space Flight Center Conceptual Image Lab
svs.gsfc.nasa.gov/cgi-bin/det...
[7] Animation of the Heliosphere by NASA’s Goddard Space Flight Center Conceptual Image Lab
svs.gsfc.nasa.gov/20363 - Наука та технологія
you put out some of the highest quality educational videos on the platform. brilliantly made.
Welp, I guess I can't tease any other channels about having 3D graphics.
Very impressed by what people can do on Unity! I'd love to make visualisations that pretty.
This is what science doesnt get, this method will NEVER EVER work because the sun isnt made of gas, its made of metallic hydrogen, this fact will become the truth sooner or later; only lattice confined fusion will ever work, because it requires a lattice, when they got telescopes strong enough to WITNESS TRANSVERSE waves as the filaments fall back down and SPLASH across the SURFACE they should have understood immediately instead they act like its an "illusion" your eyes are lying to you now think of what i Just told you
This man deserves so many subs. The quality of the content is through the roof I love it!
Also.. happy sun at 3:32
🌞
But happy about what? That is the question. ;)
@@JoeOvercoat ehm... am i missing something?
@@ritishify I think maybe the part where if the Sun wanted to, it could destroy the Earth ten minutes, including transit time. 🌞
@@JoeOvercoat oh, so, kind of a cheeky/evil smile? I get you now hahaha
I found your channel this week, and I can't believe I haven't sooner! Great video quality, great explainations, and great narration! :D
Great! I guess the sun not only has a forcefield to keep the pesky rebels out, but it also has not one, but many large exhaust ports that emit solar wind from the core for convenient proton torpedo shooting. Who designed this thing??
I did
A typically high quality video and the length it needed to be, not painfully stretched out to 15+ min. Well done
This is fantastic. Nothing wasted.
Nice video. But I see you put off making this video for many years until finally... you got that smiley face you needed for this video 😂
the reason the sun will grow in size is because of the increase of energy release in the core making the outer layers expand, not because it's losing mass. the mass loss during the main sequence is negligeble and if anything is actually making the sun smaller because less mass = less pressure in the core which in turn means less energy into the outer layers, mind you the core might behave differently specially in the later stages of the stellar evolution where it is degenerate.
the tico tico choro at the end really is the cherry on top of already interesting videos. thanks
I have to admit, I actually ignored this video for weeks because something about the thumbnail made me think it wasn't an Impossible Matter video; I assumed it would be a "normal" pop-science video by someone else
Excellent, video, and real nice graphics.😯
You are amazing. You always choose the perfect point to start explaining something from, like the damn Sun for example. You explain it in terms of magnetic confinent Jailbreak style, and that's honestly the most genius thing about it all, you write your scripts like a story. Thank you so much and to many more!
Thank you, great science content! The dead-pan delivery makes me appreciate it even more.
what type of anisotropies inside the sun cause the sunspots to form in the first place? 1:14
In short, the convection which brings heat to the surface is turbulent and chaotic, like an extreme version of water boiling in a pan. A good question to come back to in a future video, perhaps!
What causes the magnetic field, is it the result of something else?
@@jetaimemina In general, electric currents generate magnetic fields. In the Sun, both the overall North-South magnetic field and the smaller strong patches around sunspots, for example, are caused by the random, turbulent motion of plasma.
If I may expound on this a little bit. Plasma is ions, so the moving plasma is itself a kind of electric current. The Sun is moving plasma, so the entire Sun is the electric currents that generate its magnetic fields. And these magnetic fields (together with convection and the fusion in the core, as well as the gravitational pull of orbiting planets etc.) move the plasma, which changes the magnetic fields which changes the motion of the plasma and so on.
The fact that the motion of a plasma affects its own motion due to its own magnetic fields is why it is difficult to accurately simulate plasma motion, for example to predict solar flares or to design a stellarator. The field devoted to simulating plasma motion is computational magnetohydrodynamics, which you can google if you'd like to learn more.
For an example of the turbulent motion of convection, Leigh Orf has a facinating presentation titled "A 10-m resolution quarter trillion gridpoint tornadic supercell simulation". Obviously plasma convective cells are different beasts when compared to tornadoes, but I think this gives a good starting point for both a mental model of what the fluid/plasma is doing during convection and an idea of the kind of computational resources required to simulate it. Cheers!
Seen two videos but love your channel.Great stuff!. This is fantastic. Nothing wasted..
you are very underrated, these are some top notch educational videos, thank you
Seen two videos but love your channel.
Great stuff!
Thank you for the video!
I love what I learn from you. Thank you!
"And assorted other rocks"
Ahahah amazing
Great stuff!
Very nice. Thank you!
5min23sec for such a big thing?
I really like videos that are only as long as they need to be. Thank you for going against the trend on YT of making unnecessarily long videos. &: Beautiful video.
In der Kürze liegt die Würze!
Bonus for being the first one to explain sunspots to me!
(No, really. I never realised that they cool because they are like the suns doldrums...)
"A field is a region of space associated wit a quantity (not necessarily of potatoes), and thus..." - you almost made me spill my coffee. ("Almost", as it was already finished... ;-)
Thank you!
Nice alternative use of Unity game engine
I really enjoy your taste in outro music
3:45 happy sun
ua-cam.com/video/WImXh9NoHVc/v-deo.html
Very accurate very good
Never realized that the sun loses gravity due to it radiating light (energie). What an eye opener.
E = MC²
Mass is emergy
Energy is mass.
"In physics, a field is a region of space associated with quantities. (Not necessarily of potatoes)"
🔥Nice One!!! Teachers at school rarely have such humour
Random tico tico no fubá at the end credits. Nice!
magnificent ball of life giving/taking =P
Wow so interesting!
That joke from 1:30 to 1:40 is criminally underrated.
very cool
awesooooooome
Excellent work, all round from the graphics to the understandable explanations
The outro music is funny. Don't know what to think, for me it evokes some feeling - maybe "epic comedy"? I thought it was great and fitting on the Helion videos, not sure what I think on the other ones.
it's actually very fucking big
Nice.
you made my brain happy when you pointed out that stars actually do look like ⭐️ i love it when science is whimsical
Great quality video. So sunspots and coronal holes are different phenomena that produce the same visual result on the sun's surface? Is there a difference in average temperature between the two?
There is a temperature difference. I had to go through this rapidly, but sunspots are dark in the visible (the hot parts are thousands of degrees), while coronal holes are dark in the extreme ultraviolet (the rest of the hot corona being millions of degrees).
Love your work, can you cover recent breakthroughs in nuclear fission energy
Once I saw the happy sun I couldn't un-see it.
There is supposed to be a mystery about why the Sun's cironasphere iis so much hotter than the surface of the sun. But if you do the math on the acceleration of hydrogen by the Sun's gravity, it comes out to about the temperature of the coronasphere.
3:29 :D
So all the kids drawings of Sun were actually right, it is smiling!
I'm so happy that someone else was deeply amused by the smiley sun.
Fascinating I had no idea the sun was a poached egg
3:29 happy plasma
"If you look at the sun..."
me: ARGH IT BURNS WHYYY
"...Which you should only do with protection for your eyes or a special telescope..."
The person behind this channel. I love you..
your a genius ....
What happens to the charged particles that are not captured by the planets?
So the sun is as big as the "SOLAR-system". What a revelation.
have we figured out how the solar corona can get so mindbogglingly hot?
There is still some debate, but the magnetic field is largely thought to be responsible. The magnetic field from regions like the sunspots churns up the corona higher up and converts its magnetic energy into heat.
@@ImprobableMatter i was thinking, if the corona is hotter than the layer beneath it, shouldn't heat and mass flow back inwards?
Yes, that does happen, but there is also much less material in the corona. Material moves into the corona and gets heated, and then either flows outwards as the solar wind or falls back down and cools. But if it falls back down, there is just not enough material to significantly heat the layer underneath.
@@ImprobableMatter sounds like thermodynamics behaves really weirdly for systems as strongly coupled as solar plasma
btw, would love to see your take on magnetic field generation (dynamo effect) if you have the time
Well it's a lot less dense. Heat is just a measurement of the average momvement of all particles. The magnetic field would acclerate the particles and thus in turn make things hot.
The sun is smiling at 3:28
3.32 smile, you're on yt.
Very good video. To the point and not too long. I like your longer videos, but that is because you have more to say there. Though I'm certain you could talk about it for hours and make it interesting. It's just that some people will prefer shorter "primers" and some will prefer "in-depth analysis". I'm honestly in the second camp, but that is because I know the basics about sun.
"Which you should only do with protection for your eyes, or a special telescope"
and my past self at 14 years old took that personally.
Can i stare at the sun with solar eclipse glasses?
If they're strong ones and from a reputable source. I heard there were many counterfeits out there last eclipse, so be careful!
i just found your channel, and its quality is incredible compared to "the good science channels", keep up the good work, hopefully one day, you reach millions like other channels do
Can’t wait to see the 2024 full solar eclipse from the Adirondacks.
3:30 :D
Correct me if I'm wrong but isn't the visible "surface" of the sun just an optical phenomenon anyway? There's no phase transition there, no discontinuity in density or composition, just a rapid change in opacity of the plasma?
Yes, that is largely correct. Although there is fairly rapid ramp-up of temperature as you go outwards into the corona.
Where can I read more about this phenomenon?
even sun got corona
3:45 >D
analogously, are we as big as our smell? some day do a vid on Hill spheres, or Hill tessalations, or Hill thingies.
Because we talk about fission, fusion and space, can we have a video on Nuclear Thermal and Nuclear electric rockets? Real Engineering did a video on it called "Can Nuclear Propulsion Take Us to Mars?", and there are a number of videos out there that claim we can get to Mars in 45 days if we use this system. I want to know if it true form someone who understands nuclear fission and not just someone on UA-cam.
Here's hoping for a CME in 2025.
Are you Isaac Arthur?
No. I have watched him occasionally. Watch my interstellar travel video.
@@ImprobableMatter Ok. You have a very similar dialect and voice.
Science Question:
If Jupiter is the size of the atmosphere around it, then is the Earth the size of the land or our atmosphere around the Earth?
Then that begs the question of the size of the Sun because it is all gas.
Good point. You could consider the magnetospheres as the edge of the influence of the planets and outside them it's the Sun's influence.
Hey! What is this? Get back to the fusion tutorial! (just kidding, this was fun :D)
3:46 looks like a koala's face...
3:38 POP QUIZ: that sun is _______ . Answer below.
Haha 😆
The sun is not a perfect sphere. It rotates on its axis and that causes the poles to be flatter than its equator.
Imagine if you broke out into sunspots rather than spots when you became a teenager though. Sounds like an interesting XKCD What if?
The Sun is 99.8% of the Solar System by mass. Jupiter, Saturn and all the rest is just a rounding error.
The force of electromagnetism that shapes our star?? Ummmm, no that would be gravity lol.
Listen again: "Looking at the surface of the Sun and above, it is the force of magnetism which shapes our star"
@@ImprobableMatter It's definitely a combination of multiple forces honestly.
Convection, radiation pressure, electromagnetism, gravity, angular momentum, etc.
Damn, why didn't I get a notification? Shame on you UA-cam. For shame.
Edit: Am I the only one who wiped off their screen before realizing it was sun spots? No? Just me?
This is misleading. There's no real "force field" around the sun.
You will get more views if you include the words “insane” or “game-changer” in the title. Also maybe start with plugging Square-space and/or Brilliant. It’s like you’re not even trying. Thank heavens.
Sun isn't far million miles than you think, due to our limited access to spaces, we can't verify our planet shape and distance. I'm doubt we can go to space, there's barrier not far from stratosphere