What Is a Plasma?
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- Опубліковано 5 чер 2024
- Explanation of the fourth state of matter and how this has been known since the Greeks. Examples of plasmas in a ball and in a DC glow chamber. Shows a diffuse glow changing into a ribbon of plasma which can be moved by a magnetic field. A radio-frequency (RF) plasma is also shown.
For all his obvious intelligence, knowledge, and skill ... his true talent is teaching. This is a subject most people only understand in the abstract. He explains it in a way my 8 year old can grasp. And does it in 9 minutes. Amazing. Thank You Professor.
stop making videos, they are too interesting, i can't stop watching them
I mean, come on, some of us have lives we should be living, right?! These videos are very inconsiderate of my time management skillset...
@@onetwothree4148 there's tons of youtube videos and other things on the internet that all affect my time management, so I blame something other than just youtube, it's a whole culture of websites that all suck away my time
I'm addicted too.
Haha
Keep making these video's. They are so worth it.
I appreciate your lessons.
All through highschool, I was excited to learn about plasma, but every time I asked about it they were like, "yeah we're not covering that." It's a blessing to have free, high quality education like this.
I had a chemistry teacher that said, “it’s rare and not that important.”
So a Flamethrower is technically a plasma cannon.
Anything that reaches a certain temp is a plasma. Thats solid, liquid or gas.
The misconception about fire being a plasma is actually really common. It isn't plasma, but it isn't a solid, liquid or gas either. It's our visualisation of a chemical reaction. It might look like something, because it is constantly there. We can see it, we can feel the warmth, we can hear the crackling of whatever is burning and smell it too. But think about it, when the fuel is gone, so is the fire. You can't see what fuels the flamethrower, but it's not like you're creating fire out of nothing. Fire is just a prolonged case of combustion. A chemical reaction.
Sorry if this is too long :)
@@Robin-234 Not too long. Good answer.
@@Robin-234 so fire is just a combustion reaction that happens for a long time and emits visible light?
@@samsawesomeminecraft well, yes. Though, fire isn't a type or subset of combustion, it's just combustion when it's happening for a longer period of time.
And yes, it emits light and warmth.
Is it just me that is amazed at his ability to write backwards so neatly?
Thats what I noticed first
Those professors that i will forever remember from my academic world, are guys like this. They don't go (only) by formulas, by theorizing around things. That's easy for guys that have good memory. They go much deep into a world where they can keep things interesting for the students and make them think much by themselves about what they are explaining. I've found that this itself is a form of art. The art to teaching, that only a few can master. Sure you have so many teachers and professors and whatever. But for me the real ones, are guys like this. Congrats and keep up with this videos.
How has this only been viewed 31,000 times??
Really enjoyed the demonstrations, especially the one with the magnet. Made it simple to understand. Thank you.
This is the professor’s best video yet. Plasma is def something he spent time thinking about. Love the demos too.
So far, the only man able to help me understand what exactly plasma is. Thank you 🙏
Thank you for sharing your knowledge with us Professor .
Professor your videos are amazing. Very easy to understand and full of great knowledge. I wish I had you in my college, I would have gained better grades😉
Thanks for uploading
Great vid! You are an excellent teacher! Excellent! Thank's!
It is been a while since the last time a see a really walk trought lecture about lab tools, Prof, David Ruzic your name should be highlited more on the video description, thanks!
This Professor is really amazing . It is very easy understand each and every concept which he teaches. I request you to continue this as much as possible. Thank you!!!
Im just amazed how well this guy can write everything mirrored and reversed
BSEE 1977 / UIUC. Good to see we still have great teaching profs!
awesome, worth watching n gaining knowledge.
Excellent video as always, thank you for putting these out for everyone to learn.
The best explanation I found regarding plasma!!!! Way to go!!! Thank you!!! You have the gift of teaching!!!! Congratulations!!!!!
Those demos were amazing! thanks professor!
Thank you so much Prof. I could sleep now. I've got my question aswered
im digging this channel.
Really nice discussion. Clear and cogent. Thanks.
Thanks a lot. Great video. Great demos.
This is explained so well and is so awesome!
part with 4 elements was so interesting !
Thanks! Really good explanation!!
He said jello!! My only previous image of plasma. Until now. FIRE 🔥 !!!
So proud of my UI Masters Degree right now. 😌
Thanks for the brilliant lecture prof.. This answered eerything I wanted to know and more..
his ability to write backwards is astonishing.
realomon that’s all I could focus on at first lol. I think he’s writing forward and the video is flipped vertically.
It's a mirrored presentation. Notice his wedding ring is on what appears to be his right hand.
LMAO
Amazing how many people don't know what mirrors do. 😜
His ability to get an adhd kid to understand more complex ideas than this is as astonishing
Fantastic lesson!
Great teacher!
Amazing. Thank You, sir!
Loved this very much
this channel is awesome.
Isn’t it interesting that people like Brian Cox and NDT will wax lyrical for hours about dark matter, muons, leptons, quarks, etc. But will never even utter the word plasma. “Interstellar dust and gas…” No, it’s plasma. Thank you for this very clear introduction.
Great video. Learned so much. Replace the marker.
that was really cool!
Hah, interesting. I didn't know that it makes up 99% of the stuff in the universe.
Neither do the dArK mAtTeR scientists.
HELPED ME ALOT
If this was my science teacher then I would want to be a science major.
Wow I learned a lot from that lesson, great job ;-)
THANK YOU for FINALLY making sense of what a plasma is!! :)
Well said. Thanks.
I like the end. awesome.
Good teacher😊😊 thank u😊
Masterpiece
Thank you for this excellent video, Prof. Ruzic. I'm left with 1 naive question: If a gas, as in your hydrogen or argon examples, is pushed into a plasma state (where the electron is ripped away) ... is that hydrogen still hydrogen? The argon still argon? Or does it become some sort of "matter soup" of electrons and nuclei floating about?
Public school science textbooks should use your explanation of electrons and an explanation for electron cloud distribution which it doesn't even mention which makes students believe somehow electrons just magically spin around atoms. Plus there's the Bill Nye video where iirc I think he claims electrons can be like miles away from its atom. Which perhaps is either outright wrong or only showing one specific scenario.
Nice sir
So fascinating! Love this channel! Interesting that the greeks got all 4 states of matter kinda right.
Thanks!
Amazing 😊
Sir, your lectures are so great. Thank you! After only a few weeks, I think I'm a genius. There are obviously 5 states of matter. The fifth is actually the first, preceding solids. It's the"programmable", empty framework offering location options for the other forms of matter/antimatter. I guess space? Is that matter too? If there is a quantity of it, it must be a form of matter too, right?
One way to use modulated plasma is plasma tweeters. You can make sound by modulating plasma using an AC audio current...
I hate to disagree with the great Professor, but it is not the 4th phase of matter. Because it is simply heated "gas", and Plasma is just that, and nothing else like Plasma - heated gas. Now he is correct saying 99% of the material in the universe is Plasma - stars, suns. In our solar system the sun makes up 99% of the material, the other planets 1%.But I loved how he was writing backwards on the clear board. Sorry, but I think it is cool. And I enjoyed the video.
thank you
the see through board is blowing my mind
There are 5 states of matter, with BE condensate, but you surely know that sir. BE condensate is just so rare we can neglect.
hi David, i thoight it was recognised that there were 5 states (or phases) of matter. going opposite tfrom the hot end down to the cold end you end up with the bose - einstien condensate. although admittedly the four you mentioned are regarded as natural states and the 5th is man made.
regards richard.
Well that's just the beginning of plasma, can you do more plasma videos
this guy so cool. Always been a scientist but not in this field. Saw one the other day now i am hookt. And i've learned somethings. Such as radioactivity does not come from radioactive things or sources. He said neutrons cause radiation. And i blieve him. Why would he lie and since this is science easy enough to verify. Thank you for the knowledge from this and the other video you made.
I weld for a living. with tig we mostly use argon to shield the plasma from the atmosphere. In my world, we call it the welding arc.
When it comes to welding aluminum, we can adjust the focus of the arc by adjusting the hertz. When welding steel we adjust the focus using amperage and the distance between the electrodes.
Have you considered how we went from earth, wind, water, and fire to solid, liquid, and gas?
After-all LEDs are solids that emit light, lava is a liquid that emits light, and fire is a gas that emits light. There’s a clear case that luminescence is a property of matter like electric charge and magnetism. The plasma ball is compelling but, you can run a high voltage current through a piece of wood and see that it only runs through a narrow circuitous path.
If plasma is a different state of matter then it seems we would have to add two more states for luminescent solids and liquids. Would you agree?
can the plasma reconfigure itself and create other elements than those initially included in the gas? if so, how to control this process and what elements can be created from plasma?
Does the gas you use determine the color of the plasma and the different type of plasmas?
To make fusion energy, we just need to tune it to the right radio station.
The 12 dislikes are elementary school teachers who still say it’s 3 states
Thanks
If they used this guy's lecture to teach physics at my school I would have straight A's instead of D's.
I like your videos! Wow. Please continue to do more. But clouds are not water vapor, but water droplets (liquid). Water Vapor is transparent. 😜
Are you saying boiled water is a liquid, because it isn't transparent?
@@onetwothree4148 boiled water is water vapor. However clouds are made of water mini droplets (liquid) or ice crystals (solid), not vapor.
@@michaelmardini346 why don't they fall when they become liquid?
I'm confused about something. If I understand correctly (and I may not) a plasma occurs when atoms are heated until electrons are ripped away from the nuclei. So, I think it's like you have a haze of electrons and nuclei. If so, is there a difference between plasma generated by heating hydrogen and plasma generated by heating oxygen? In both cases (again, assuming I'm right), the plasma would just be electrons and nuclei separated from each other. So, would there be a difference? If so, what would that difference be? Likewise, if you heat oxygen until it's a plasma and then cool it, does it go back to oxygen gas? Or do different atoms form?
6:19 Somewhere out there, there’s an audiophile trying to figure out a way to use that beam as the ultimate speaker wire
Does anyone know what was going on with the very last experiment? How do a radio frequency and a coil produce a plasma? And why is a radio wave considered DC?
A little more *negative* pressure (vacumm)
does magnets would affect fire (plasma)?
So it's just vapour or is it any gas that can be turned into plasma
wonder who gave it a thumbs down. Probably somebody trying to make the bomb and figures this video won't help.
david johanson 😂
Ahaha
Probably someone who didn't know they could watch it sped up.
Remind me to prof. Matt Anderson's learning glass
What is the difference between plasma and fire? This wasn't taught when I was in high school and it's not taught in my son's high school.
What is an electron distribution cloud?
Prof Ruzic is legit af
What do you mean we are used to seeing 3. I look up in the sky and see the fourth state of matter every day.
Two thoughts on this.
1) How does he write backwards like that? That must take a lot of practice.
2) Why is blood plasma called plasma?
**facepalm** i was asking myself the same thing, like forever^^
So is water the molecule becoming a plasma or is the hydrogen and oxygen becoming their own plasma states?
What software and hardware is in his presentations? I don't think it's simple glass, because the image would be reversed.
glass is a super cooled liquid since with time gravity will always make the glass window thicker at the bottom which is a liquid behaviour, same from ice.
In a special note and through "particles eyes" there's no states only more or less connections strength depending on surrounding TPM, the perception of state is an illusion
There's the Physics.
So is it plasma in a nuclear explosion that makes the electromagnetic pulse, or is something else coming into play?
just curious, is he writing from the back of the glass?
There are actually recently found more than four states of matter
Isnt it possible to creat power using it
It is a bit more accurate to think of the Plasma as a dielectric of separated charge - the 'Solar Wind' is a Dielectric Wind from the Sun's surface. It also represents 'Charge Separation' in Space that the present cosmological model doesn't recognize, unfortunately for the reputation(s) of the scientist agreeing to such 'democratic science' ...
3:50 Avatar main theme begins to play*
Gases experience similar characteristics. Why when youre on a motorcycle and the road dips down to lower elevation you experience cooler air. Or airplanes taking off.
Good lecture. Delivery is a little slow.
When will we "need to know" this?