Physics 10 - Lecture 09: Electricity and Magnetism

[QuantumChance]

How embarrassing, forgot to zip up the barn door :X

[samanferrari]

So whats the point of learning physics without the equations and numbers?

[wackofest]

read his book. very good at describing the physics behind everything, in a simple yet very informative manner. wish he taught my physics class.

[Shabasky1]

Say we have an ostrich...

[lovelplants]

electricity is everywhere anywhere and all over.. lol.. i did'nt appreciate in electricity before then now it's kinda interesting to know from people who have much knowledge on this area...

[cloudforgiven]

electricity generates heat.. can heat be used to generate electricity????? someone tell meeeeeeeeeeeeeee

[ejlerthomsen]

@cloudforgiven conservation of energy



[ProtonPowerable]

everytime he says electricity...he sounds like hes saying....Electizidy!!!..lol..­lmao..im just sayin!

[tangypasta]

@ProtonPowerable he's a russian physicist. Oh... not all physicists are from russia :(

[tlee01621]

I believe his zip got repelled from his belt

[ChRIs23696]

good stuff.

what sorta ib (international baccalaureate) results you looking at for being accepted, or are sats compulsory?

thanks

[LversusKira]

fucking magnets

how do they work?

[AlexJWVids]

I'm a sophomore in high school. Could some one explain to me why we don't learn on a level like this? damn educational system wasting my time, hah. anyways, I can only hope my prophesiers will be this good!

[tuntunkhanrocks]

@AlexJWVids your in one of the toughest high schools in the world dude.

[lsbrother]

0:08 that is possibly the most useless physics demo I have ever witnessed. He could at least have tried it out before hand and perhaps got someone to show him how to do it properly - it's not difficult - pathetic!

[backyardbeachbum]

electrizity? wtf

[killershiller1]

@ 45 minutes the force (electromotive force EMF) - voltage is the pressure or potential difference at which current moves from place to place

[killershiller1]

as long as a complete circuit allows this shift and a place for the electrons to go you will have electricity.. 625,000,000,000,000,000,000 moving electrons per second is 1 Amp (1 coulomb = 625 x 10 to the 18th power electrons)

[killershiller1]

less valence electrons (electrons in outermost shell/orbit) make it easier to jump atoms.. any conductive metal has 1,2,3 valence electrons..insulators have 7 or 8 valence electrons.. i call it a coulomb shift

[Rileyman2rr]

i like how he says "electrizity"

[mizunderztud]

hope all my teachers are like you sir. Richard....

[mjrajack]

whoever dislikes dis is GAY!!!!!!

[lolkiwi]

EM Physics nearly killed me this year. But I passed..THANK GOD..OMG

[Debedeb]

Brillant, to bad you have idiots who don't do anyting to help others gain knowledge can be the biggest critics. If they apply as much of that negative atti. towards thier interactive life maykbe they be worth something.I enjoyed this very much. I love the time he takes to be sure u can see and understand how elements ect work. ty

[Debedeb]

absolutely think this is one of the best teachers I have seen. Llucky students ;D

Thanks for sharing some of us have interest to learn but no means to get great teachers or classes.

[LozoDaydreamer]

its freaking annoying how he pronounces 'electrizity'

[ultrakool]

electrizity? i've no respect for this anti-semite

[PlasmaCode]

This is by far my favorite branch of physics.

[Billsthenamefirst]

i look at the size of this class and it makes me scared of going to college

[1empathy]

9:06 it was joseph swan

[eggman1600]

ya so much knowledge here.LETS ALL JOIN AND DISCOVER THE UNIFICATION THEORY.. ANY IDEAS?

[immrbaldwin]

This stuff is so damn interesting. Youtube and online resources can completely change the educational system if used properly. Too bad people will much rather prefer to watch Jersey shore or a sitcom than something as great as this.

[Neomundus]

Please watch the video The Electrinium Battery, and read the book. Goodspeed to you all.

[tuchdoun]

0:03:56

[MrCPhysics]

He makes an egregious physics error in this video--electrons moving in the same direction (currents in the same direction) attract each other, not repel as he states in the demo at 46 minutes in. Quite confusing to the novice physicist.

[sbbowen]

@MrCPhysics and just think you could have paid for this. what a rip off

[NoWitnessesNoRegrets]

@sbbowen Give the guy a break, have you seen how many hours of lectures of his there are online.

Im shure even you make mistakes sometimes.

p.s An education is never a "rip off"

[sbbowen]

@NoWitnessesNoRegrets Ok I see what you mean, I was to jummpy, I'm just a little mad that I don't have money to pay for a teacher, I think that life is about passing it on and I figure if someone showed me how to do complex operations then I would one day repay that investment by posting my own you tube video because if no one has the money then the country will fail because there won't be anyone that knows how they got to this point much less adding to what has already been achieved.

[joeglimmix]

@sbbowen in general, you learn to think in college by doing work and not by just listening to a lecture

[sbbowen]

@joeglimmix right it does take a lot of work to understand how things work and not that they just work, but If I do the work for general intrest in a subject and on my own time in the long run I think I would be better off because I wouldn't stop after 4 years, it could take me my whole life just to absorb the current data. I just don't like being processed and having a power point education.

[ChapmanGriffith]

@MrCPhysics Thanks for clarifying this for me. I thought he was mistaken. But give my limited knowledge of this I wasn't certain.

[magnetismelectricity]

Hello and thank you for the lecture, WATCH my video DIY strong electromagnet.

[D2zee]

The camera is a bit slow

[1mj2288]

Disappointing.

[demonshubham]

ucberkeley rockzzzzzzzzzz...

nice

[neutrillium]

im new to this i know that magnetism is a under estimated and barely tapped into.Its force isnt all that understood.I beleave that dark matter is a magnet pulling ripping and forming other matter into what we see now in space and on earth.What id like to know today is how magnetism effects metal crystals when in a molten state also during the cooling process then to a solid state would it make the metal crystal stronger weaker more dense

[bbaaaalll]

great lecture!

[bbaaaalll]

Tnx 4 posting berkley.

[steffe12]

Is it only me or does he look a littel bit like Yoda?



[gobears131]

campusdealsucb.tumblr



[MrWallerstein]

WOW - Muller really shows his genius explaining fields at the end.

[dillmon1]

is this all of electricity and magnetism! in one lecture! damn

[porscheghcje]

Free energy technology exists!But the big oil corporations don't want that technology revealed,Find the real deal, a free energy device at LT-MAGNET-MOTORdotCOM ,Big change is comming soon!

[eross4201]

this is a beautiful thing that uc berkley and its regents allow this for viewing and downloading to the general public. thank you so much for this wonderful gift.

[vincetheworldly537]

YEAH! thank you sooo much for this vid. because of these videos i won the science quiz bee in physics and defeated a lot of science freaks in different schools.

you really are sent from heaven, god bless you.

[Terminatrix69]

jeez, sooo many ppl there and sooo silent, in my class we are with 14 and its full of noise lolol

[profit33333]

wow this gentleman really has a lot of hoodspa i like the way he tries to logically explain the energy of the universe electricity and magnetism..lol its all apart of a bigger structure and cannot be explained in third dimensional terms.. in order to explain or comprehend this energies characteristics you would have to be fluent in fourth dimensional linguistics..... witch we all know is like if 2d comprehending 3d...the theory of god.... one existence understanding the dimension above.....

[morto360]

What is a electric field? ...or any field?

and what is energy?

[darkoriginhunter]

@morto360

Mathematical constructs that happen to adequately describe electromagnetism, mechanics, etc

[abottoir]

He said that light is an electric wave. I thought that light was elecromagnetic radiation mediated by photonic bosons.

Does this mean that all electricity is mediated by some form of boson?

[JesusWASdarkSkin]

5 stars

[leparditas]

gasoline doest need spark, but presure lol

[urumqilik]

this guy is awsome...it is impossible to get bored by listening to him...and a very bad Cook too hahaha

[leparditas]

@urumqilik no 

[girocraz]

Stupid late guys..

[boberfredability]

Does any one know an email he might have and i would also enjoy a lecture about the chaos theory

[boberfredability]

you should do another lecture on chaos theroy

[girocraz]

I see..chaos theory, I like that theory

[skyphor]

He generalized lightning bolts. It due to ionized air and Ice crystals, not due to water drops rubbing against each other.

[AlienProphecy]

Light is an electric wave? I think I just peed on myself when I tried to fit that into my head...

[YvesHenri]

HOLYFUCK! I did not watch it, but, how many years did it take to upload this video!?!?!?!??!?!?

[partyhatftwlol]

can some1 help me? So magnetics and electricity r the same thing??? but how i still dont get it. =\

[PeskyPanda]

@partyhatftwlol They aren't the "same thing," but they are connected because one can cause the other. A moving magnetic field can induce a current, and a current can also induce a magnetic field.  That's what this whole "unification" deal is about, it was noted that a current moving through a wire induced a magnetic field around the wire. Since that direct relation was observed to exist, it was possible to explain it via equations. The Maxwell Equations explain that relationship perfectly.

[RebornAc3]

@partyhatftwlol Electricity and Magnetism are different things of the same aspect, they both have to do with Electrons. Electrons moving causes electricity and Electrons in the same orientation cause Magnetism.

[lgslhs06]

Not bad.

[TheAidz64]

Thanks this helped with my revision

[webdesignpr]

I definitely give a 0 to the camera guy.

[Loki95531]

don't show this to ICP. Those morons think magnets are f...ing miracles.

Great lecture other than the time impaired camera person.

[1104687]

whos the retard using the videocamera? he doesnt pan over fast enough to where mullen is showing something, does anyone else notice this?

[roniepao]

i think electricity created when zeus start to fart.

[girocraz]

??? ( DID ZEUS EVER EXISTED?? ) well 0 to the cameraman

[DrGonzo39]

here's a comment

[DrGonzo39]

here's a comment

[PeaceLoveFairytales]

not enough girls in the class

[fan7994]

wow! a great way to make understand me .....thnx professor Richard

[oilchng]

Thank you Lermoth . Thank you Berkley .Thank you very much Prof. Muller .

[oilchng]

reference min 55 . would a slice of permanent magnet 1 micron thick still have a north and south pole ????

[Lermoth]

@oilchng yes, all magnets have.

[TarisRedwing]

@oilchng yes

[placebomessiah]

haha his fly's down

beginning of vid, 'playing with magnets'

[r8qt7]

@placebomessiah: who cares - the lectures are fantastic

[placebomessiah]

a man who speaks to the world with his fly down is an insult to Islam and I shall use everything I learn from these lectures to wage a jihad on teh Great Satan. You will rue the day you taught me how to make a calutron Mr. Richard A. Muller.

[r8qt7]

@placebomessiah: islam can suck my balls

[placebomessiah]

curiously you americans often resort to homosexual advances in the face of confrontation

[r8qt7]

I'm not an American ...

[placebomessiah]

my apologies, I find it is safer to assume all homosexuals are american as so many of them join the american military

[r8qt7]

@placebomessiah you seem to have experience in that field.

[placebomessiah]

explain

[boazhachlili]

who is the @#$%% who filmed this?? You've got horizontal motion, you've got zoom...are you just sitting there listening to you F'ing ipod???

[ExNihiloJimmy]

would a monkey eat a cheeseburger?

[PinkNoodel]

probably not. maybe a banager

[oneeyedboxer]

There got to be a classified super conductor metal out there.

[eyeojo]

Yes there is, oh shit... don't tell anyone

[oneeyedboxer]

Would you please watch your mouth, if you don't have anything beneficial to add to the discussion than don't don't bother me and reply with stupidity ...I take these lecture serious and I treated them with the most respect .

[eyeojo]

I' m utterly serious

[oneeyedboxer]

lol alright I'm buying

[rne1223]

this is awesome...my first video, but I think that I'm going to learn more from this videos than from class...lol

[brax303]

lol his zipper is undone.

[rne1223]

hahaha...why were you looking down there for?

[eyeojo]

That is part of the mad scientist costume!

[PatSan1984]

@brax303 lol poor muller!

[SpankbankINC]

@brax303 LOL i noticed it and expected to be the first to notice. Sad.

[Duckygangsta92]

@SpankbankINC lol i felt the same way

[mophead319]

@brax303 quit looking at his crotch lol

[carmilache]

@brax303 i wanted to say the same thing, but then i noticed that i wasn't the first :P

[demonshubham]

@brax303 in whole video u only looked there......strange lol

[NUFC251081]

It's good to learn about the history of science. That's the idea to learn physics.

[954blade02]

with what you just explained has opened up new transport with the free electrons between the earth & moon if you find away of control.....sorry i am years to late.

[NickRoman]

Did he say absolute zero is the freezing point of water? A little Turret's moment or something? lol

[SughiBoogie]

he said that 273 K is the freezing point of water. 273 K = 0 C which as you know is the freezing point of water.

[libbeingcool]

he looks like a younger Einstein, but I'm not hear to learn about history. I want more about electricity and physics ^_^ But good video though.

[D0IS3N]

I love watching lectures. Oh, this guy is on one of the episodes of The Universe. Little fun fact for ya.

[123firespirit321]

0.49-0.55

He has his flyes undone!? - I think.

[dekekyo]

my fly is down at 0.51!!

[mcflygirl1977]

i can't wait for college. bah.

[brinebot]

0:49... his fly is undone!

[mykol13v]

Just came from the teacher's lounge

[superdummy74]

Haha. Why does the cameraperson zoom in on it?

[zhangindahouse]

LOL ElectriZity

[tenjugney]

i'm just anxiously waiting for the moment when unification of forces i.e quantum gravity, will get done n we'll grab a clear understanding of the big bang theory...let us wait ...or let us do it ourself!

[AppA]

Wow, those last seconds were I think the most powerful.

Thanks Berkeley & Professor Richard A. Muller!

[eyeojo]

couldn't agree more - wow!

[mischiefmakerz101]

omg daz tru his zip is really down!!

hahahahahahaha

[Billy982810]

I think it happened when he put the magnet under the table.

[csmaster65]

I really hope there is some sort of big joke going on here now?

[lamboy1993]

yo with all these retarted comments heres one his fly is open. seriously at 00:53

[stelivo1]

Stop been immature guys and just appreciate the host for spending time on uploading these. For all those of you saying negative things about muller, i don't see your name respected in physics as much as his is.

[JBnut]

I swear to God whoever did the camera work on this episode drove me insane: Muller would move to a different area of the room to demonstrate something, only for them to keep focused on the spot he'd just vacated, leaving us to miss out on the demonstration. Nice Work.

[themachinegunn]

electricity is a force left by an advanced alien civilization.

[phantaros]

you meam mexicans invented it?? wow!

[themachinegunn]

are you retarded....wait dont answer that.

[phantaros]

joke! dumbass in ref. to Aliens inventing electricity!

[theRealCheeseCake]

you are fucking retarded. learn some physics before you spew your shit

[themachinegunn]

yeah i bet youre a regular old genius mr cheesecake

[theRealCheeseCake]

no, i'm just not retarded enough to think electricity is a force left by aliens

[themachinegunn]

maybe youre too retarded to see the truth.

[theRealCheeseCake]

If by truth, you mean some theological nonsense that your preacher shoves down your throat, I think I'll stick to my retardation.

[themachinegunn]

you assume too much mr cheesecake.

[willberb]

Stop looking at his crotch, you damn wang watchers!

[bgaede]

Muller does a lot of nice magic tricks, but he can't tell you how Mother Nature performs these tricks. Anyone can put two magnets together or show how they repel. So now, what is PHYSICALLY producing attraction and repulsion? That's what not a single mathematician on Earth will ever be able to tell you!

youtube com/watch?v=evfUTmx0uh8

[MrQuatt]

Wonder if Static Electric sticks to his butt when he wipes it?

[bgaede]

Before or after he zips his pants?

[Joshmarine]

Its the exchange of photons

[bgaede]

Great! Now explain how them discrete photons attract each other!

[Joshmarine]

I don't know the answer, one day we will find out. I think your missing the point of physics..

[bgaede]

The point of Science, including Physics, is to explain natural phenomena rationally. There is absolutely no way to explain attraction of two discrete particles rationally. That's why the establishment's version called Quantum Mechanics, and which Mr. Muller represents, is bunk! QM does not recognize the force of pull. It never has. It never will.

[Joshmarine]

No that IS science, the point of it is really to utilise what we find to create new solutions, technology etc to make our lives easier/better. Its not essential to understand how the "pull" force works immediately. And what makes you think 'quantum mechanics' never will? Every intelligent physicist knows their explanations are likely to be accurate models at best- quantum mechanics included. The fact is is that its useful for explaining phenomena and is useful.

[bgaede]

1. "that IS science... to utilise what we find to create new solutions, technology"

Technology is about inventing gadgets. Science is about explaining a phenomenon of nature.

2. "Its not essential to understand how the "pull" force works"

There are only two forces we can imagine: push and pull. Can you imagine any other? If the mathematicians have been unable to explain the force of pull, that just eliminates 50% of the forces.

[bgaede]

3. "what makes you think 'quantum mechanics' never will? Every intelligent physicist knows their explanations are likely to be accurate models"

It is irrational to attempt to justify pull with discrete particles. They never have. They never will, partly because no one is investigating the force of pull. Not a single mathematician, including Muller, can explain to you the force of pull. Then he wonders (another vid) why he can't explain the nature of gravity (i.e. pull).

[HeyHeyHarmonicaLuke]

lol zipper undone!~!!!

[anafredd]

bahahahah! .. yeh noticed that too.. despite the fascinating magnet demonstration .. XP

[XxBrian88xX]

his zipper is undone!!! lol.

[natalicn]

any body know where else i could learn some physics i need 2 ace my class

[blacklions714]

electricity is another manifestation of time & space. With in each particle is a force of time and space, ether + or -. time = p+ current, space = N- current. When combined electricity is formed. Reverse engineer Matter to it's end constant, which is Time and Space.

[zwxao]

What's a positive charge? I thought the electrons can have only negative charge.

[dbc1987dbc]

positive charge is a result of a lesser amount of electrons compared to protons

I still don't get it. In every atom the number of electrons is equal or grater than the number of protons. How can you obtain "lesser amount of electrons compared to protons"?