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

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.

This is the professor’s best video yet. Plasma is def something he spent time thinking about. Love the demos too.

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.

So a Flamethrower is technically a plasma cannon.

Great vid! You are an excellent teacher! Excellent! Thank's!

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

Really enjoyed the demonstrations, especially the one with the magnet. Made it simple to understand. Thank you.

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!!!

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 .

Is it just me that is amazed at his ability to write backwards so neatly?

How has this only been viewed 31,000 times??

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!

BSEE 1977 / UIUC. Good to see we still have great teaching profs!

im digging this channel.

This is explained so well and is so awesome!

Those demos were amazing! thanks professor!

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!!!!!

Really nice discussion. Clear and cogent. Thanks.

Thanks a lot. Great video. Great demos.

Im just amazed how well this guy can write everything mirrored and reversed

awesome, worth watching n gaining knowledge.

Thanks! Really good explanation!!

Thank you so much Prof. I could sleep now. I've got my question aswered

Amazing. Thank You, sir!

Fantastic lesson!

Great teacher!

Thanks for the brilliant lecture prof.. This answered eerything I wanted to know and more..

this channel is awesome.

Loved this very much

that was really cool!

He said jello!! My only previous image of plasma. Until now. FIRE 🔥 !!! So proud of my UI Masters Degree right now. 😌

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.

his ability to write backwards is astonishing.

HELPED ME ALOT

part with 4 elements was so interesting !

Wow I learned a lot from that lesson, great job ;-)

Good teacher😊😊 thank u😊

Hah, interesting. I didn't know that it makes up 99% of the stuff in the universe.

I like the end. awesome.

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?

Well said. Thanks.

Amazing 😊

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 for FINALLY making sense of what a plasma is!! :)

Thanks!

So fascinating! Love this channel! Interesting that the greeks got all 4 states of matter kinda right.

Great video. Learned so much. Replace the marker.

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?

thank you

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

If this was my science teacher then I would want to be a science major.

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.

Does the gas you use determine the color of the plasma and the different type of plasmas?

Thanks

One way to use modulated plasma is plasma tweeters. You can make sound by modulating plasma using an AC audio current...

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?

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?

There are 5 states of matter, with BE condensate, but you surely know that sir. BE condensate is just so rare we can neglect.

Well that's just the beginning of plasma, can you do more plasma videos

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?

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.

The 12 dislikes are elementary school teachers who still say it’s 3 states

does magnets would affect fire (plasma)?

So it's just vapour or is it any gas that can be turned into plasma

the see through board is blowing my mind

What is an electron distribution cloud?

What software and hardware is in his presentations? I don't think it's simple glass, because the image would be reversed.

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?

To make fusion energy, we just need to tune it to the right radio station.

When will we "need to know" this?

A little more *negative* pressure (vacumm)

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.

So is water the molecule becoming a plasma or is the hydrogen and oxygen becoming their own plasma states?

just curious, is he writing from the back of the glass?

There's the Physics.

6:19 Somewhere out there, there’s an audiophile trying to figure out a way to use that beam as the ultimate speaker wire

I like your videos! Wow. Please continue to do more. But clouds are not water vapor, but water droplets (liquid). Water Vapor is transparent. 😜

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.

So is it plasma in a nuclear explosion that makes the electromagnetic pulse, or is something else coming into play?

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

Does plasma rust?

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' ...

Prof Ruzic is legit af

Isnt it possible to creat power using it

If they used this guy's lecture to teach physics at my school I would have straight A's instead of D's.

Remind me to prof. Matt Anderson's learning glass

3:50 Avatar main theme begins to play*

How about cold plasmas?

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.

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.

What about cold fusion???

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?