The Double Slit experiment

Submitted by: ICN 10 years ago in Science

Electrons behave like waves, but act like particles the instant they"re observed. WTF?
There are 176 comments:
Male 61
they could have picked a better word...rather than slit
0
Reply
Male 404
poo
0
Reply
Male 987
"Read a quantum physics book or a conservation principles book its quite obvious "
di you just tell IAB something was obvious about quantum physics? I`d guess half of these people didnt take in a third of what they learned in highschool lol. (no insult meaned)
0
Reply
Male 2,788
Trippy.
0
Reply
Male 20
Ha Ha Ha, the particles intefear with themselves.

Joking aside i did this last year in school. It is stupidly confusing.

0
Reply
Male 1,079
wtf
0
Reply
Female 375
my brain hurts
0
Reply
Male 1,129
haha easily explained. when we measure or use some proximity detector. we have to remember how teh detector works. probably by using radar or something. now when the photon from the radar interacts with the electron it causes its momentum to change thus messing with how it will act. Read a quantum physics book or a conservation principles book its quite obvious
0
Reply
Male 608
EPIC!
0
Reply
Male 1,114
"and its ppl like you that makes most humans uneducated"

Rofl, no comment...

Wait, that was a comment!!!!!!

Aww man

Meh, in for a penny, in for a pound...

Douche bag, when calling "ppl" uneducated, check grammar and don`t use abbreviations like "ppl..." Seriously! Ppl these days....

Lol, just kidding

With the "Ppl these days...." comment that is, not the rest of the comment...


*wins*

0
Reply
Male 19
drat
0
Reply
Male 19
poo
0
Reply
Male 19
has anybody ever looked at quantum suicide? or like the many worlds theory? when you say pull a trigger to a gun thats at your head, the universe splits due to the two possibilities, one being that your dead and the other that you lived, in the one where you lived, you never know about the other universe in which you died, and in the one where you died, you remain dead and that is the only thing else that can happen with you so that universe remains as though you are dead. so this is saying that electrons are in a superposition until they are observed and are forced then to choose a form so they act like particles but when they are not observed, they can do what they want because they act as though they are at all forms possible at once. i don`t even know, because as interesting as quantum physics is, it`s way over my head, yet, I probably have as good of an idea how it works as the quantum physicists do. and I`m being serious, no one knows poo about it, it`s all just theories
0
Reply
Male 5
Ahhh yes, this is from "What The Bleep Do We Know?"

"Consciousness . . . is the phenomenon whereby the universe`s very existence is made known."

0
Reply
Male 28
Why is it so difficult to understand that measuring something effects the outcome? Its no different than heat transfer along a thermometer effecting the temperature of the system that is being observed.
0
Reply
Male 145
ok wtf waves then lines... ahhh!!! its armageddon
0
Reply
Female 2,084
at first i was like huh but now i get it. lol.
0
Reply
Female 1,470
Jebus...my brain hurts
0
Reply
Male 1,072
^^ LOL at midori that made my day
0
Reply
Female 221
what the hell was that?

I mean, I`m bored, but not that bored that I`m gonna watch an old fart explain some physics phenomenon...

0
Reply
Female 1,070
oh.. my god. freaky.
0
Reply
Female 35
That. Is. So. drating. Creepy.
0
Reply
Male 65
This problem has already been solved. The devices and methods that were being uded to view the electrons (lasers and lenses) were disrupting the electrons activity, therefore creating a different outcome. electrons have a gravitational effect on each other causing them to move in distorted patterns. even if they occupy the same space at diferent time the gravitational field remains. just like if one of the planets in our solar system were removed, it would effect all of the others......
0
Reply
Female 1
I like physics........and maths.......
0
Reply
Male 374
... WHAT!?
Everybody knows that this is Satan`s doing, sorcery!
PHYSICS ARE TEH SATAN!

... Sorry. This is nuts.

0
Reply
Female 604
Holy moly, that`s some trippy stuff.
0
Reply
Male 3
BTW, a lot of you seem to be saying that an animation proves nothing. Duh! Of course. But this experiment ("the double slit experiment") has been performed countless times - using multiple electrons, single electrons, other nuclear and atomic particles, etc. And each time, the same result occurs: a single particle seems to "interact with itself" but that interaction does not occur whenever a measurement or observation is made as to which slit the particle takes.

Oh, no less a figure than Richard Feynman said, "the result of the double slit experiment is the CENTRAL MYSTERY of quantum theory". He then corrected himself, saying that in fact it is "the only mystery. If you understood it, you would understand quantum physics, but nobody understands quantum physics"

0
Reply
Male 5
I’ve heard the universe we know is made up of 11 dimensions. We all know the X, Y, & Z dimensions, but there is also time, nothing, and a dimension of consciousness… I have no idea how far it goes, but it would not surprise me if there is some level of awareness in every little drop of matter we can (or can’t) see.
0
Reply
Male 22
to make it clear there is a fact that is ignored i think. photons are small energy packets and when you use light you fire multiple packets at a time which makes u think its a wave but when u come to the electrons u fire at a time and try to observe it it cofuses you. when you reverse the experiment for photons and electrons nothing changes it is the fact that they are (to say easily) different versions, appearences of each other (when you look at the board) and it is easy(for now) understanding the statistics they create not them 1 by 1.
0
Reply
Female 447
This looks like some sort of spin-off on that movie "What The Bleep Do We Know?," and for those of you unfamiliar with it, it`s a movie where quantum physics experiments are oversimplified and misinterpreted to create a sort of new-agey, "create your own destiny" view of reality. To claim that this sort of presentation proves your wacko theory of the meaning of life is simply wishful thinking, seeing what you want to see.

So, though the explanation of this experiment is technically acurate, don`t go thinking you can alter reality with nothing more than willpower; such logic is likely to land you in a detox facility or in a room with padded walls.

0
Reply
Male 679
He`s got it right on the observation tool inevitably slowing down the photon.

By the way this is terribly Copenhagen interpretation biased!!! As a MWI proponent, I`m offended.

0
Reply
Male 296
Your hypothesis is interesting Mcfly, but I`m sorry I just can`t take you seriously. I can put on the internet that I`m a monkey trainer/intergalactic space traveler, or whatever I want. I took those classes too. See how easy it was to make up some BS?

Cool vid btw.

0
Reply
Male 3
"Anyone who is not shocked by quantum theory has not understood it" - Nils Bohr (Nobel Prize, Physics, 1922, and postgraduate supervisor of about another couple of dozen Nobel Prize winners)
0
Reply
Male 1,204
this reminds me of speed of light paradoxes. pretty cool stuff. wonder what we`ll find out
0
Reply
Male 26
I took general physics and AP in highschool, and then two years of engineering physics in college. I know what I`m talking about.
0
Reply
Male 26
The electron`s ability to travel at near the speed of light is what allows it to exist in almost every position at once, and to pass thru both slits at once, and to interfere with itself. Interaction with the detector messes up the interference.

Look at it this way. If two electrons were fired, side by side, one at the left slit and one at the right, we would assume that each would pass thru its respective slit, and interfere with each other on the far side, causing a wave pattern on the wall. But if a detector is placed in the right slit, the electron that passes thru that slit is slowed down minutely by having to interact with the detector. This throws off its timing with the other electron, so they no longer interfere with each other. This process works the same with just one electron, as shown in the video. The detector that is used interferes with the experiment, and causes the particle pattern to appear instead.

0
Reply
Male 129
Actually McFlyyy is right...sort of, but obviously we are not going to settle this in a comment section on the internet so just let it go people and read a book. Ohhhh Harry Potter is out now!!!
0
Reply
Female 2
Ok, to mcflyy again,
What`s going on-> the way we `observe` something makes it act like it is. as in this is what`s going on. it`s not like we don`t know what is going on. This is what is going on!
There is plenty of mathematics to explain this! It`s not just that the detector is there, it`s the whole process of `observing` that collapses the wave function to what it is!(this is why there`s an interference pattern, because it covers all processes). It`s more that our minds aren`t sophisticated enough to grasp the concept. This does happen!(but again opposed to the electron `knowing` what happened it is down to mathematics which clearly won`t be explained here!)
0
Reply
Male 26
The whole point that this video doesn`t make clear is that it`s just the detector that is interacting with the electron, and that messes up its wave interference pattern. This isn`t some wierd phenomenon that can`t be explained, it`s just that we don`t have a sophisticated enough way to detect what`s going on without interfering with the experiment itself.
0
Reply
Male 33
hi its chaos theory if you want to get it researcch that and (lol i got this from stargate sg-1 i knew it would be useful someday) if you knew wich way a matter/electron was going it would change therefore you would be able to predict anything norr belive in pyshcic shows because how are they going to know the current position of every peice of matter so there if you knew every peice of matter location you could possibly find out the future but after a good million guesses of what could happen but only 1 might come true wich would probaly be a coinsadence so you wouldnt be able to tell the future but if you did maybe 2 seconds in advance out of a million possibilities but sorry i bragged on about basiclly the same stuff
0
Reply
Male 382
Amazing. this tells me we know absolutely nothing about the reality that surrounds us. But we`re working on it.
0
Reply
Male 1
uhhhhhhhhhhhhggggggggg i dont get it.
0
Reply
Male 901
Well, obviously, this is not because of the observation, but because of the disruption of the twin particle which has to be done when observing it.
0
Reply
Female 2
hey Mcflyyy. By observation in physics we generally mean an interaction to see what happened, be that with a microscope or a detector which registers pulses or whatever. ie. they are observing the electron by interacting with it!
And it can explained by mathematics using wave functions, but this is a real phenomenon which has been around for nigh on 100 years (unlike string theory :))
the failure is really with the english language as we don`t have a word for this wave/particle duality.
0
Reply
Male 317
So that does this mean that the saying:
`A watched kettle doesnt boil`
is real?!?!
0
Reply
Male 194
wtf?
0
Reply
Male 135
wow, i absolutely loved this video does anyone know where it came from? i just sent my highschool physics teacher this video and im willing to bet he would buy the whole series. assuming this isnt just a one shot deal, it seems like its some sort of educational tv show. hopefully theres a lot more!!
0
Reply
Male 2
Most good. ;p
0
Reply
Female 174
i didn`t get it.
0
Reply
Male 54
How do you make babies?
0
Reply
Male 425
This was awesome
0
Reply
Male 114
I took Electronics 101 and I understand about 2% of what the hell this guy is talking about.

To professor: Nice outfit.

0
Reply
Male 1
Ok, to all of the people stating "i took 12th grade physics and i understand all of this" you are wrong -- if you think you understand physics then you actually don`t...at all.(period)

Go google "Heisenberg uncertainty principle" or "quantum mechanics" or "wave duality" or "planck`s constant" -- there is a ton of very interesting and comprehensible material out there (be warned that the math involved is highly complex).

A last note to the subjects of my first remark -- I thought exactly the same way as you did, then I decided to major in physics in college...

0
Reply
Male 528
Honestly people, SOMEONE would have thought about the detectors interfering. This is a problem for some of the greatest minds we know, and YOU guys thought of it. =P
0
Reply
Male 528
Just out of the jungle, here on Earth. Excellent video, and good brain candy.
0
Reply
Male 40
it`s magic, duh.
0
Reply
Male 26
Observing the experimemt doesn`t change anything, this video just makes it seem that way. It`s the presence of the detectors that change the outcome of the experiment.
0
Reply
Male 404
Finally a good explanation
I`ve heard of this many times but not understood the details of the experiment
Now I finally get it!
0
Reply
Male 967
Perhaps we control the ability to make it behave through some way or another. Pretty freaky, if you ask me. Just imagine, the ability to control particles just by observing them. The applications are endless!
0
Reply
Male 10,440
HAHAHA!! I took gr 12 physics, I know exactly how this crap works. Nicely animated video tho
0
Reply
Male 14
The controlled environment of how they did this test is not specified. Whenever you pass electricity through a wire it creates a radio frequency (that is unless it is twisted so those frequencies cancel out). Any sort of electrical device that is used to measure (or observe) this experiment can very well interfere with it just because you`re playing around in a sub-molecular level. Also, the heteroscedasticies of radio waves and electron-interfering equpiment does not seem to be accounted for.
0
Reply
Male 346
This is like Heizzenburg`s rule of uncertainty, stating that observing something changes its behavior therefore we cant be sure of anything.
ANYTHING AT ALL
0
Reply
Male 779
This is confusing... Does this mean that when nothing can see something, it is doing every possible thing it could possibly do at that moment?

Wow. Thats drating cool.

0
Reply
Female 1,397
That is really interesting.
0
Reply
Female 818
I liked this guy better when he was terrorizing two-dimensional dot people.
0
Reply
Male 5,970
Man that is the most amazing thing I`ve ever heard, seriously.
0
Reply
Male 556
well, im screwed in science class next year...
0
Reply
Female 727
interesting. I`d rather watch these vids than my prof in chemistry haha
0
Reply
Male 5
i read a book on quantum phicsics when i was like, 5. and i understood it. almost. but when your like, 5, you understand everything.
0
Reply
Female 2,220
That`s bizarre...
0
Reply
Male 105
holy buttdrating poo
0
Reply
Male 35
if a tree falls in the forest does it make a sound?? The world is a mystery..
0
Reply
Male 34
This is kind of similar to the question of does the refrigerator light turn off when you close the door? It`s designed to do so, it seems to do so, but it`s impossible to know. If I put a camera in the fridge I`ll know that the light went out, but how do I know that it`s acting the same way when the camera isn`t in the fridge.

That`s actually one thing that I`ve always gone crazy over. How do I know that the refrigerator (or anything else) doesn`t act differently when no one is watching it?

0
Reply
Male 244
maybe the observing device interfered with the electron?
0
Reply
Male 139
I don`t know if anyone has said this but, maybe this explains that feeling you get when you are being looked at from behind you...
0
Reply
Male 2,172
Electrons are particles but they`re intangible just like electricity.

The observer in this scenario was some sort of electrical device so you can guess that those electrons where affected by the device the same was a magnet would be affected by another magnet.

0
Reply
Male 1,623
magnetism from the measuring device or some sort of other interference could have affected the electrons
0
Reply
Male 26
The point of using detectors is because scientists are baffled as to how a single electron can pass thru two separate slits at the same time. A detector would tell them how this happens. But it just so happens that using a detector negates the interference pattern, and the electron behaves just like a marble, as the video describes.
0
Reply
Male 480
o so according to mcflyyy... the experiment is done wrong then.. because the detectors are interfering with the electrons.
0
Reply
Female 878
D=
That is amazing, confusing, and it makes me kind of sad.
There are some things we just can`t figure out.
0
Reply
Male 26
They weren`t observed, the video falsey portrays this. There are detectors inside each of the slits that detect when an electron passes thru. They aren`t visual detectors, so there has to be some sort of physical interaction between the electron and the detector, or else it wouldn`t detect it. An electron, moving at almost the speed of light, effectively exists at almost every point, and passes thru both slits, thus interfering with itself. But when its detected, it can no longer be pasing thru both, but must be present in one of the slits, and must behave like a particle. Nothing to do with watching.
0
Reply
Female 83
Sry MCFLYYY, I should have waited for your 2nd post. But you can`t say it has nothing to do with observing the experiment. The fact of the matter is that there is a different outcome pattern of the electrons after they have been observed.
0
Reply
Male 188
I remember this from A-Level physics.

Basically, light is magical.

0
Reply
Male 26
Electrons dont have minds of their own, thats just the kiddie way of putting it that the video uses. It falsely suggests that electrons decide sentinently what to do in a situation, when that is not the case.
0
Reply
Female 66
Oh, jeez, education! It`s summer, I`m not supposed to be learning anything...

But hey, I guess I learned something.

0
Reply
Female 83
^^ This was great! Quantum physics is so crazay.
Isn`t this basically the same thing as Schroedinger`s Cat? (I`m sure I spelled that wrong)

"So it has NOTHING to do with the fact that someone is `watching` the experiment. Electrons don`t change their minds of what to do based on whether someones watching or not."
No, that really IS a phenomenon that happens. Just because they weren`t watching it with their eyes doesn`t mean they weren`t perceiving what was happening.

0
Reply
Male 26
...This explains how the single electron beam can behave like a wave, and cause a wave like pattern on the board. This also explains how a single electron passes thru both slits, even tho its only a single particle. And while this is controversial, its still true. However, when detectors are placed in the slits, the electron is forced to register its presence somewhere in that slit, when it contacts the detector, and therefore can`t act like a wave anymore, and must continue on like a particle. What happens is the electron registers on the detector, and this throws it ever so slightly out of `harmony` which throws off its wave pattern, and it can no longer interfere with itself, negating its wave pattern on the wall, and producing the particle pattern instead
0
Reply
Male 2,720
Seriously, I`m pretty sure it has something to do with ghosts.
0
Reply
Male 26
I had to join this site just to respond to some of these ignorant people.

First off, when they talk about `observing` the electron, they don`t mean putting a camera and `watching` it, as the video suggest. What they do is put tiny detectors in each of the slits which monitor whether or not an electron passes thru. So it has NOTHING to do with the fact that someone is `watching` the experiment. Electrons don`t change their minds of what to do based on whether someones watching or not. So quit talking about trees in forests and ur reflection in the mirror (it doesn`t disappear don`t worry). The world does not change just because you watch it or not.

Now about electrons. True, they do have negligible mass, but they still travel at near the speed of light, meaning that an electron CAN be at many places at once. When you turn a light on, it immediately fills the room, and an electron can almost do the same...

0
Reply
Female 1,832
WTF indeed
0
Reply
Male 410
That was awesome! I`m not the sharpest knife in the drawer when it comes to quantum physics or theory but I am fascinated by it so having it broken down Barney style is great. The mysteries of science are so much cooler than the mysteries of religion, because you mysteries of science might actually be solved one day. Great vid.
0
Reply
Female 4,447
So, there really is power in the power of observation?
0
Reply
Male 338
Interesting.
0
Reply
Male 1,420
"I wish he would have used a word other than "slit" over and over again.

::is a perv::"
man, i was thinking that the whole time.

"and its ppl like you that makes most humans uneducated"
uh, you just said "ppl". i wouldn`t call someone uneducated, especially just because they believe something different than you.

0
Reply
Male 625
i found liquid glasses comment very interesting. when no one is looking at something is it still there? we will probably never know.. i liked the other dr quantum animation it kind of helps you understand how there could be another dimension but we would never be able to see it properly because were not that advanced
0
Reply
Male 625
thats one of the drating coolest things ive ever seen
0
Reply
Male 632
This made more sense than my grade 11 physics teacher trying to explain it
0
Reply
Female 161
the observer effect! w00t!
and omgwtfbbqhax, according to these physics, when a tree falls in the forest and nobody is there to hear it, the tree both does and does not exist, and did and did not fall. get it?

EVERYBODY GO RENT/BUY/WATCH WHAT THE BLEEP DO WE KNOW. good movie. especially if you`re into quantum mechanics.

0
Reply
Male 358
AAAAARRRRRGGGGHHHHH!
0
Reply
Female 3
I already knew this. Everyone ought to watch What the Bleep do we Know.
0
Reply
Male 1,114
Lol at the tree thing...

I don`t believe it for a second...

I love how he was all "now, with two slits it should act like particles and make 2 markey things... WHAT?!"... Wacth it again and you`ll see what im talking about...

0
Reply
Female 525
wow...my head hurts
0
Reply
Male 169
this is a great example of duality and is about the best atemp i have seen at exsplaining it at an uderstamble level. good luck to everyone who trys to understand this as even some of the best scientist dont get it(infact i dont think any of them do), but so many people talking about it in a logical maner is good. pitty some people just cant manage it. p.s. im sure the should be a funny quote for duality but i cant think of one
0
Reply
Male 332
The speed of electrons is not the same as the speed of light, by the way, because electrons have mass while photons don`t (even though they`re a particle), but, strangely, photons have momentum (that`s why light hitting stuff heats it up), which is mass times speed. Photons have no mass, maximum speed, which should work out to a momentum of 0, but they have momentum anyways. There`s an equation for this, but it`s been 8 months since high school physics so I forget it.
0
Reply
Female 135
the `what the bleep do we know" trailer was very interesting. to me it proved even more that god exists because it showed that these particles are mere thoughts that control our ever being not complex dense material unable to think for themselves. these "thoughts" can decide what to do based on what they come in contact with or what they are told. it seems like something that a loving god would make us and the world around us out of.
0
Reply
Male 29
I guess it just proves that some things just can`t perform under pressure of an audience.
0
Reply
Female 943
my brain hurts too
0
Reply
Male 36
If you`re interested in this, check out the Particle Accelerator work at the CERN labs in Switzerland - they accelerate particles to 99% of light speed and smash them together, creating NEW MATTER!

They`re now building a 27km circumference accelerator which will use 1/10 of switzerland`s power at full speed.

Hopefully, they will uncover the "Higgs Boson", aka the "God PArticle", aka the thing which makes gravity!! Hoverboards could become a reality guys!

Either way, Wiki it, its well interesting.

0
Reply
Female 583
Wow, IAB had taught me something. :-O
0
Reply
Female 115
my brain hurts
0
Reply
Female 781
This blew my mind! Quantum mechanics is the X factor in science that means "Despite all your logic, actually, the universe does whatever the hell it wants!"

Good clip--VERY clearly explained. I wish we had watched THIS show in science class instead.

0
Reply
Female 3
well its is a proven fact about blessed water having healing properties. and you dont need supreme people to bless it . just write on the bottle words like love and peace and the water takes on the properties of the emotion. i had my class support Dr Emotos theory on blessed water by taking 3 jugs of water. one marked love,another hate and another empty. we also took 3 sets of plants watering each group with one of the jugs of water. by the end of two months the plants watered with the hate water jug all died. the empty half died and the ones watered with the love water jug all grew 3 times in size. so how do you explain that, ask your teacher to prove his point before you go buying his opinion and its just an opinion that he is teaching,,,not a good teacher if you ask me, lets just believe what we dont prove or disprove..strange theory there
0
Reply
Male 1,265
Basically the way us observing the electron effects it is that the photon of light we must use to see the electron with interacts with the electron due to it`s negligable mass. This causes the electron to move from where it was going, thus making it impossible to know the position and directional momentum of an electron simultaneously. This is called the Heisenburg uncertainty principle, however the Schrodinger wave equation takes into account this uncertainty and can gives us a wave function for the position of an electron relative to the nucleus and makes it possible to plot the 95% boundry orbitals of an electron. As the probability of an electron being any distance from the nucleus is never 0. Simple really...
0
Reply
Male 61
well that was a waste of time...
0
Reply
Female 33
oh man i watched this in physics last year
i understand it too
basically by measuring/observing something, we are interfereing with it
ahh quantum physics...the worst part of physics i learned...
0
Reply
Male 17
On page 2 sgdp asked if there was a way to display this than an animation.

An easy way to do a double slit experiment at home is to bounce a laser pointer off of a glass (it has to be glass) mirror at between a 45` to 60` angle.

If you do it right, you should see an interference pattern on the surface the laser reflects onto.

This is because the surface of the mirror and the back of the mirror will reflect at slightly different angles and emulate two slits that the same laser beam is going through.

You can also try to cut two slits in a piece of cardboard but they mush be no further apart than the width of the laser beam and is a pain.

0
Reply
Male 154
I knew of this like... 2 years ago. the same thing happens with light. not just electrons.
0
Reply
Male 205
Geek13: yes, my physics class did a similar thing last year, except instead of a neon light it was a laser.
The interference pattern "proved" that light was a wave.
Then the photoelectric effect "proved" that light was made up of particles

We never did the electron version of the experiment, I guess because this way they manage to teach us about the photo-electric effect and (wave) superposition at the same time. then use wave superposition to explain quantum superposition.

0
Reply
Male 36
This clip is actually from a show called "What the bleep: Down the rabbit hole", part of the "What the bleep do we know" thing on BBC, some ideas are absurd, such as one idea which states that if a water droplet is blessed/cursed by some divine people and then frozen, the frozen droplet displays different visual properties when a different "emotion" is instilled into it.... "what a crock" as my physics prof politely put it.
0
Reply
Female 3
ok this little cartoon is from a movie called
"what the bleep do we know " either that one or its newer version "what the bleep do we know, down the rabbit hole" its very enlightening a real eye opener. watch it if you get a chance it explains the concept of bending time, being in 2 places at one time. how to do stuff like Chris Angel does but for real to tricks. well worth the watch if you can handle the corny cartoon part of it.
0
Reply
Male 4,745
My assumption is this: The particles are affected by gravity or other forces which make the individual particles follow a wave pattern. (Like the particle is "surfing" if you will.) This means that each particle is an individual, but because it is following the "wake" of a wave, it shows up in a wave pattern on the back wall.

They don`t state the method in which the particles are observed, but I would assume that the observation method is tainting the results by distorting the wave (electromagnetic device?) and making the particles flow straight again.

0
Reply
Female 274
I think I learnt something from IAB, it feels strange.
0
Reply
Male 34
psh, it`s soo simple. It`s witchcraft.
0
Reply
Male 204
WE`RE ALL GONNA DIE!!!!!! electrons has minds of their own!
0
Reply
Female 501
wow!
0
Reply
Female 345
Meh, what does that tell us? They got the wrong theory. So what? Find a new one, that`s science.

I wonder why they always have to use such childish presentations. Then again it must be like trying to explain IT to management: fall back into kindegarten speech ;)

0
Reply
Male 2,605
What`s this? A science-related link with a 4.0 score as of the time of this posting? Can this possibly be a reflection of what people would like to see more of?
0
Reply
Male 1,111
Who`s to say that "What the Bleep do we know?" isn`t correct SPrinkZ?

You gotta be open to everything even if it seems weird to you, it just might be right.

0
Reply
Male 177
TheBuzzer, they already have them, and the data rate isnt split between programs/commands, what have you, i cant think of the word. But its not conventional and never will be.
0
Reply
Male 2,309
If you want to learn anything about Quantum Mechanics, then do not look at "What the Bleep do we know?" It`s pseudoscientific, new-age mysticism. It has nothing to do with science, and never will. If you really want to learn about it, check for a small program they did on BBC.
0
Reply
Male 1,111
"your subconscious created" to finish that last one.

^for the above it would help if you were willing to accept that everything in the world is connected "and one" as well as the ability to manipulate the world/energy you are connected to.


2) As far as God goes (assume you believe) who`s to say he didn`t "think" us into existence then allow us infinite electrons to create our own environment and settings as per His allowance to us of ultimate free will. (If you don`t believe, don`t argue, it`s a theory not a religious rant).
2b) we have advanced because we have grown in our ability to create and manipulate the electrons.

0
Reply
Male 1,111
Well as far as an explanation goes I think a lot of you have hit on really good points.

Here`s one
1) Electrons must `materialize` because we (eyes and brains) cannot comprehend something being in more than one form.
1b) This however, leads to another conclusion that can be drawn (if you believe in this kind of stuff) That we actually control our environment with our consciousness. So things exist, because you believe they do, and not just that you do, but the popular opinion agrees that you actually are seeing what you`re seeing.
Perhaps you`ve seen something differently than another person and then you`ve disagreed, that could possibly be your mind constructing something to your own personal view. Which happens often when someone (2 people) observes something completely objective.
1c) Also have your eyes ever "played tricks on you" who`s to say that in your peripheral or even frontal vision your mind didn`t construct the electrons to match something your sub

0
Reply
Male 147
ahh quantum physics never cease to amaze me
great video!
0
Reply
Male 112
I wont belive this unless i see it with my own eyes done in real life and not thru some animation.
0
Reply
Female 1,264
its like if you turn away from a mirror, does it still reflect? ahhhhh
0
Reply
Male 472
cant wait for quantam computers suppose to calculate faster than current comps.
0
Reply
Male 5
You can try this experiment yourself by setting up the same thing in a total darkness room but instead of the electron firing machine you use a neon light the length of the back wall and the same distance from the centre panel. This will fire photons at the wall from every single possiblity on that x axis. This is the same experiment but with photons. To see what`s going on remove the uv converting coat and paint the back wall with uv paint. When the light is flicked on the areas that develop faster are the white areas. Because quantam physics does not apply to photons the experiment can be observed easier.
0
Reply
Male 242
wouldn`t measuring it, with a mechanical device, cause some kind of frequency of its own, wouldn`t that distort the way they travel..
0
Reply
Male 27
Old clip is old.
0
Reply
Male 234
I KNEW IT, ITS A CONSPIRACY TO DESTROY THE HUMAN RACE. ITS JUST A MATTER OF TIME BEFORE THEORIES TEAR US APART. WE`RE DOOMED.

And at the movie, it`s interesting, but weird. how did they `observe` something with the speed of light anyway? Would be fun they actually tried this in a CAT-scanner and go like `OMG now it`s making round patterns! we do not understand! D:` ... uh well, assuming electrons are attracted to magnets..

0
Reply
Male 5
At first it seemed confusing because they didn`t actually fire them at random. The whole splitting thing was also a bit advised. Anybody who has seen that enron movie knows that people can believe almost anything and not perform their own research if told by somone else. This can even apply to other scientists.
0
Reply
Male 480
and its ppl like you that makes most humans uneducated
0
Reply
Female 3,562
I just assume their calculations or understanding of the event is screwed up somehow that has nothing to do with whether it`s observed or not. Rather than believing that the universe doesn`t make sense, I prefer to assume we`re just wrong.
String theory is more mind-blowing than this though.
0
Reply
Male 392
Holy crap.
0
Reply
Male 480
and cheesecar can u explain in normal english?? i am not that pro in those scientific language yet
0
Reply
Male 167
This is pretty cool. I don`t really see how this helps anyone in any practical way, but this is cool.
0
Reply
Male 480
lol
this is some crazy stuff and according to pakmenu above... the electrons had to materialize when observed. So why does the electrons know that they had to materialize.. and what if they dont? someone explain
0
Reply
Female 182
"So according to this, if a tree falls in the forest, and nothing is around to hear it. It can do whatever the hell it wants because no one is watching.
!!!
This proves god doesnt exist, unless he`s some sort of exception to this law.
ARGH IM FREAKING OUT"

Oh my gosh, calm the f*ck down, kid... anywho, I`ve seen a video of the double slit experiment somewhere else, but they never talked about waht happens when the particle is being observed... way cool!

0
Reply
Male 1
Well, this subject interested me when i was a kid in school, and i found `the` solution in coupling it with the relativity theory: when an object moves at the speed of light though space, in fact time stands still for that object. Thus: electrons and fotons and whatwhat who travel at the speed of light are CREATED and DISSIPATED (at arrival) at the very exact same moment. the distance between the points they do gives for us a sense of difference in time of departure/arrival, as for us mere mortals it DOES take time to travel between two points. The particle when Emitted becomes a wave form which will ripple though the objects surrounding it, until it finds the most suitable and energy friendliest place to Materialize again.
What the movie does not say, is that other than an `Eye` or a camera wich receives fotons, to detect electrons, they actually have to materialize while passing though the slit, and so instead of 1 journey from emittance to collision (on the schreen) it partakes 2
0
Reply
Female 553
Isn`t there a better way to display this experiment than animation? It`s so easy to fake things in animation :| Not saying this is fake, but it doesn`t exactly prove anything...
0
Reply
Female 338
I wish he would have used a word other than "slit" over and over again.

::is a perv::

0
Reply
Male 480

maybe we are not in reality. it is all a simulation controlled by someone or something. (somewhat like the matrix)
humans still dunno a lot about physics. if we were more evolved, we would know this already
0
Reply
Male 842
yeah, I saw that one, too. It wasnt` nearly as interesting, though.
0
Reply
Male 332
And apparently the name of the show is "dr. quantum" or something similar, there was another clip a long way back from the same show about the second dimension, if you can find it.
0
Reply
Male 842
huh. Interesting. I typed "What the" in the Google Search toolbar, and What the Bleep Do We Know was the first thing that came up.
0
Reply
Male 73
idk my bff jill
0
Reply
Male 842
hmm..Thanks, Disembo! I`ll have to take a look at that.

Kinda makes you wonder just how much we don`t understand, doesn`t it?

0
Reply
Male 4
For anyone interested, there is a movie my physics teacher showed us called "What the Bleep Do We Know". It talks about observer created realities and this sort of stuff. It used to be on google video and it looks like parts are still on youtube. Its a good watch.
0
Reply
Male 593
^^there indeed is, but you can`t really see it; since it would change the moment you look at it :D

Really makes one think... when someone tells you not to look, would the course of history have remained the same if you actually looked/not looked?

0
Reply
Female 170
This is probably one of the more interesting things I`ve seen on here in awhile...

Maybe we just perceive it as two bands when we`re observing it because we can`t fathom existing in 2 places and existing and not existing at the same moment...

0
Reply
Male 842
btw, does anyone know what this is from? It looks like an interesting show. or whatever it is.
0
Reply
Male 842
ok, the science geek inside of me is going into overdrive. :-D I love thinking about this sort of stuff, evenen though I`m only 17. IT`s amazing to think that while we think we tknow about our world, in reality, our brains cannot even comprehend the things we see on the surface. And there`s still so much to see!
0
Reply
Male 161
because it F`s up the wave patterned
0
Reply
Male 55
I don`t get it...
0
Reply
Male 380
I thought this video was about some emo kid cutting his wrist twice or something...

But interesting nevertheless

0
Reply
Male 332
Basically what`s up is that you can either tell the position of an electron, or its direction of travel, but not both at once, so, effectively, if you can locate the electron, good for you, but you can`t do anything with it because finding it changed its path. Even without this, electrons are freaky as hell. Ever heard or quantum tunneling?
0
Reply
Male 336
yeah, there are things going on in this universe we cannot yet comprehend.

opens a hallway with a million unopened doors

0
Reply
Male 756
That`s just weird. Not surprising though, because Humanity probably has not even scratched the surface of physics. Just like multiple dimensions...sure it seems stupid, but there have been experiments done that suggest they actually exist. Most of what we consider science fiction is probably reality.
0
Reply
Male 332
Ah, the heisenberg uncertainty principle...
0
Reply
Male 777
It`s like the presence of an observer forces the electron to make up its mind and be in only one place at any given moment, when, without an observer, the electron is in many different possible locations at any given moment and, therefore, acts like a wave. So, simply by observing, we change the way our world acts.
0
Reply
Male 91
lol sorry kaizer :P
0
Reply
Male 240
kaizer, you = fail at life
0
Reply
Male 91
well,what i mean is,i was about ot get on here (b4 the video)and act like new what i was talking about...but as i watched and actully paid attention i relized what he was talking about......


but how does an obsever effect the pattern?

0
Reply
Male 240
So according to this, if a tree falls in the forest, and nothing is around to hear it. It can do whatever the hell it wants because no one is watching.
!!!
This proves god doesnt exist, unless he`s some sort of exception to this law.
ARGH IM FREAKING OUT
0
Reply
Male 91
i completely understand
0
Reply
Male 336
Link: The Double Slit experiment [Rate Link] - Electrons behave like waves, but act like particles the instant they`re observed. WTF?
0
Reply