Electrons - Sixty Symbols

[MrSuperZangief]

who is the funny person that disliked this ?

Every Sixty Symbols has at lest one dislike.

[eatpumkin090]

His neighbors must hate him and his box of balls he throws at his walls.

[BruceNJeffAreMyFlies]

Yes Professor Poliakoff in 60 symbols! So happy!

[jimmyshitbags]

physicists always have the best haircuts

[Sephitian]

:) His Screen saver says "Green Chemistry "

[milliperezxx1]

The man in the glasses has never worked a day in his life. :D He is blessed lol

[Swiftynine]

Haha, just a random question, didn't do any research before i ask now; Why is it called electron and not negatron? I mean.. Positron, Neutron, Negatron.. would have done things much easier for newbie students like me :)

[TheBananular]

@Swiftynine The electron was discovered before the positron and the neutron, and was then only known as cathode ray particles and later "corpuscles". George Fitzgerald suggested the name electron, probably because of its electrical properties, and the name stuck. At the time, they didn't know of the positive counter-part, positron, so naming the particle "negatron" was not something people considered.

[Collision5152]

person with crazy hair; man or woman?

[mcRioRemedy]

@Collision5152 woman

[MysterMysteryHunter]

Or..the mass of the particle creates a wake, and it is this which creates the pattern and defracts the light. I did a similar experiment with an LED in a tube with 2 slots cut into the end of the closed side. All I got were 2 bright lines on my wall...very disappointing ;) Could this indicate that light can indeed travel at different velocities, depending upon the source?

[mcRioRemedy]

@MysterMysteryHunter and LED is not a laser

[MysterMysteryHunter]

@mcRioRemedy Correct. Didn't have a laser handy, so I used an LED.

[elirox100]

wanabe einstein

[BlatendCrude]

0:46  "The Face"

[fcbahamutzero]

Hey Einstein I'm on your side!

[JoeyMars1]

are electrons exactly identical to each other? I mean in weight, size, face and which ever way possible. If not, how much or far do they differ? I need to know the answer to this.

[TrevM]

@JoeyMars1 They're identical in every respect that I know other than they can be either "spin up" or "spin down" electrons.

(but im no expert, perhaps there are other aspects that differ that I am unaware of. As far as weight and size go they will be identical)

[silentonall]

I'm suggesting to the United Nations that atoms and their sub-atomic particles be granted human rights. These concentration camps like CERN, Fermilab and Berkley are killing billions of atoms at a time with their so-called "experiments" Poor electrons.

No wonder why my electric bill is so high...

[heyandy889]

I love the walkthrough of our human process to understand why electrons behave kind of funny. What gets my goat is a presentation of info w/o explanation or reason, here we walk very carefully through discussion and experiments with electrons. Even a real live particle accelerator. :-D

[metabog]

I bet you get so many more students wanting to come to Nottingham now over places like Cambridge. To be honest before I saw these videos I didn't know anything about this university, but now I have almost a profound respect for it. Nice job.

[FltOfTheGrndBnd]

SCHROEDINGER'S CAT!!!!

[nickharvey7]

Could wave particle duality be forming what we see and feel as the flow of time? The wave-function or wave-particle duality of light is collapsing and reforming continuously. We see and feel this process as the forward passage of time itself photon by photon, moment by moment. Therefore the future is always uncertain because we have an uncertainty between energy and time ∆E ∆t ≥ h/2π and position and momentum ∆×∆p×≥h/4π.

[jasonguyperson]

little balls. hehehehehehe

[Fewsandpiper]

so what is the relation between periodicvideos and sixtysymbols exactly?

[meteosurreal]

@Fewsandpiper ...They're both done by guys at Nottingham.

[mrrn100]

particles are more like systems, and atoms their afternoon pub

[isrealjason]

0:42 best hair cut ever

[TheMrNashville]

epic facial expression at 3:44

[dstdvl]

mmmmmmmm............double slit.

[TheLordZixx]

I can't stop watching these! I have 2 projects that I have to finish right now, and they're due tomorrow, AND I CAN'T STOP WATCHING THESE

[mrbushcraftman1]

@TheLordZixx i know its freaking cool

[Moriarty2112]

@kristijanadrian

I mention in another Sixty Symbols video that the majority of the comments we receive for the videos in the project are intelligent, perceptive, and thought-provoking. It's a shame that you have provided a lengthy series of counter-examples.

Please do some research before posting uninformed comments. Have you seen a double slit experiment in action? If not, don't make wild claims about hoaxes. Google "Hitachi Tonomura double slit" for a video of the experiment in action.

[madmaxxp1]

Why does observation collapse the wave function of electrons in the double slit experiment?

[ZZAKON]

There's no wall... and no electrons either.

[genericmember1]

One person dislikes this vdeo?

Oh no, Dmitri Mendeleev is back and is taking his revenge out on sixty symbols!

[number6of6the6beast]

what is an atom!?

[DeltaPhi79]

You know... I have almost no idea what people say in these videos but I like watching them... Whenever I'm given any physics or chemistry, I can always count on sixtysymbols and periodicvideos.

[kingofdice66]

what a interesting haircut on the professor, is he related to Einstein ? or he believe himself to be Einstein?

[p6a9u1l42]

is it possible to be a particle and resonate a wave length? this kind of experiment along with Schrodinger's cat boggles my mind

[Sockheadableful]

@p6a9u1l42 yes it does

[uut0]

so electricity doesnt flow from + to - but from - to + ?

[eltotoX]

What baffles me is that electrons fired separately (in time) _still_ show the same pattern. I can't get my head around this, and is currently the most amazing piece of science I've found, along with entanglement. It's as if the wave is not only present through space but through time. I don't understand.

[Xxoax]

MY GOD the AWNSER is so Simple!!!! Oh my god this will be a World changing event!!! Look at them they are a object, Don't look at them they are a wave!!! DON'T you SEE!! Electrons ARE GRAVITY!! My goodness people Electrons are Gravity it's so simple to understand now, Just think about it!! James McLeod Says so!!

[uglymug15]

@Xxoax will you survive 21/12/2012? doubt it.

[kurtilein3]

about those waves: it is important to understand that they only exist in the future and collapse at present time. according to quantum mechanics, thats how you differentiate between past and future.

so when you look at such a wave and try to figure out where the electron might be then you are looking at an event where the outcome is unclear because its still in the future. in the present, the electron reappears, and in retrospect the second law of thermodynamics makes sense again.

[Spadie1]

Is it just me or did he miss out at the beginning the fact that the bands (interference patterns) are only found if the electrons passed through a slit, this wouldn't occur if you just "fired" electrons at the wall.

[Moriarty2112]

@Spadie1 Well spotted - we glossed over this. Nonetheless, slits as such aren't entirely necessary to perform the double slit experiment! The beautiful Hitachi experiment which demonstrated single electron interference (see the Wiki entry for the double slit experiment) doesn't use slits. It uses a thin filament.

One might imagine scaling *both* the table and the balls in the video down to the nanometre (or sub-nanometre) level...!

Best wishes,

Philip (person speaking in video)

[Spadie1]

@Moriarty2112 thanks for the reply, I had a read about the  Hitachi experiment and its interesting stuff. The sixtysymbols videos are great btw so thanks for them too!

[Draxis32]

Seems that the faster a particle moves, It's more likely to act as a wave.

I then wonder why, electrons sometimes acts as a wave(not being able to find where it is in a certain time) but you can actually determinate it's mass, but the photons, even though you know they have momentum, and you can't determinate their mass.

And what about neutrinos and other sub-atomic particles...

I guess the universe is just too complex, right now, for we to understand it.

[TheBeyonder9]

Wait a minute. Did he say that photons 'ARE' waves??? (3:33)

I thought that photons were ambiguos and could be modeled as particles just like electrons, but like electrons sometimes behave like waves.

[Moriarty2112]

@TheBeyonder: Very good point. I was speaking rather too "loosely" there. What I meant to put across is that we *know* that light has wave characteristics and can interfere, diffract etc...

There'll be more on wave-particle duality at Sixty Symbols in the future...

Philip

[roendm]

photon behave as a particle and a wave

[l0rd0f0blivi0n]

photons are 'packets' of energy, it is simply a term used to describe how electromagnetic radiation travels in segmented parts, which gives the radiation it's particle like qualities, while still remaining a wave.

[Jokker88]

It's the particle-wave duality. Essentially all particles have wave like properties, not just the electron and photon.

[dwip57]

From what theories I have been taugth, Photons are little pockets of energy and not particles. It is still 100% matter but since it is a pocket of energy and doesn have a defined shape to it (billard ball :P) it is considered a wave when it is moving. thanks

[furiousharry]

that guy reminds me of the irish guy from the IT crowd

[JonNebula11]

or videos are who are you a movie maker ??? you should make a documentary i like some of your camera work some is strange lol( strange is good

[culwin]

I learned more in 1 of these videos than 4 years of high school.

[JonNebula11]

lol try listening

[culwin]

Oh OK thanks for your intelligent comment.

Great contribution.

[nawitus]

Your high school must have sucked.

[culwin]

Big time

[nige503]

I studied Physics, Chemistry and Maths at A level in the early 1970's. I really enjoy these vids from SixtySymbols, NottighamScience and PeriodicVideos.

[daflamer]

word !

these channels are the finest of youtube

[Norfeldt]

This is the best explanation of electrons that I ever got! And I had studiet chemistry for guite a while now..

[JonNebula11]

watch ( WHAT THE BLEEP DO WE KNOW)

ITS GOOD IT EXPLAINS REAILITY AND ATOMS?? QUANTUM PHYSICS

[caveatemp]

I love how physicists tell us that our language is not able to accurately describe the world of atoms and electrons without lapsing into antinomy. They tell us the universe is all made of these particle/waves and yet their paradoxical nature doesn't affect us on the macro level. Very funny!

[Domination584]

So I don't understand what you're saying. Are you claiming that what they are saying probably isn't true, or are you just trying to express how amazed you are by wave/particle duality?

[caveatemp]

The wavicle antinomy is true, that it doesn't profoundly effect us on the macro level is downright silly. Think of how science could progress if it wasn't dichotomized. Before Newton science was not divorced from alchemy. Now scientists feel compelled to go around making the tail wag the dog all day.

I think we are in for a earth shaking paradigm shift relatively soon.

[Domination584]

Well what scientists mean when they sat it doesn't affect us on the macro level is that the random events in quantum mechanics average to a predictable classical mechanics. Also, they aren't saying quantum mechanics doesn't effect us at all, they are just saying that Newtonian mechanics is still a good approximation.

[caveatemp]

The most common phenomenon of psychic ability is the ability to know when someone is staring at you. I believe it was Rupert Sheldrake who proved this statistically. Hmmm... and sub-atomic are affected by observation. Just a coincidence?

[Domination584]

I'm not sure you understand what physicists mean when they say observation of electrons affects what we can measure. They are simply saying that we can only measure one aspect of an electron, and that observation precludes measuring the other aspect. I would suggest that you take a physics class before assuming you have a grasp of what this means. That way you will actually understand what physicists are saying.

[caveatemp]

That has even more relevance to human interaction. You view me as a dolt because I assume things without being a university student. That's one perspective, isn't it? I'll bet you wouldn't want to be viewed as arrogant and yet that's how I see you. You might think I'm unfair or it might make you more arrogant. Do you understand exactly "what physicists are saying"? I think humility is the key to all human endeavors otherwise we cease to learn and end up with a dead view of the universe.

[VelusDarkbind]

That was the most impressive comeback I've ever seen. Seriously. I thumbed this up.

[Ashitakaandsan]

@caveatemp humility to a point, yes, overt altruism, no. carry on, know I'm not telling u anything new.

[jacksawild]

@caveatemp That's a lesson which could be learned by every person I encountered at uni. University education is a joke, you're better off reading the books yourself. At least that way you're less likely ending up with someone else's preconceptions. I think it's obvious that our understanding of physics is based on faulty assumptions, most physicists will agree with that and they'll also agree that we have no clue as to what they might be. Our understanding is impressive, but it has a way to go.

[roendm]

electrons are wave-like in nature

[DeoMachina]

Moriarty just MARCHES down those corridors.  Man on a mission.

[pin3appel]

gordon freeman walks fast lol

[cookiecamp]

whats he difference between ionic bonds and covalent bonds/

[DeoMachina]

Oh man we did this in school..uuh...

It's to do with what the molecules are, I think it's metals/nonmetals?

[sn1pe352]

Ever think those arent really electrons?

[solomsolomol]

you gotta love the way prof. Moriarty says "ball" : )

[2szymi]

table RLZ too :P

[leuchtstab]

3:45 what happend? x]

[SuperFinGuy]

Another great video. You put the wave like scattering/diffraction very clearly.

[jacoman1234567]

Great video again! It's cool to see these things again.

[HerrCaZini]

electrons are schizophrenic lol ^^ thinks he is a little biljart ball and a wave as well LOL

[solomsolomol]

where's professor Moriarty from ? he has a nice accent

[Pottzy123]

irish

[Daftfreak123]

now whats wrong with that???

[Pottzy123]

nothing, i am irish myself

someone asked what accent that guy had

[johnmc2k]

Could you please further this video to address what happens when you add a observation device to see which slit the electron is going through? Is it true it then returns to acting like a single unit instead of a wave making two lines instead of an interference pattern?

[itsabomberscope]

Great vid!

[hash1212]

I love your videos.

[sixtysymbols]

Blame me for any shortcomings in this film - not the Professors... Did some pretty severe editing to fit a lot in a short space.

Professor Poliakoff's entire electron interview is uncut at our behind-the-scenes channel, nottinghamscience, with some extra bits people might like.

[BGenerous]

Comparing to the uncut, I thought you made some good cuts to keep it focused on the particle/wave duality. Good inserts too, especially the atom with the electron wave orbits.

[p6a9u1l42]

@sixtysymbols i don't understand the concept of the double slit experiment since you get bans of interference patterns until you observe it then doesn't it go back to acting like a particle. this and the Schrodinger cat experiment give me a braingasm