Light is an electromagnetic wave. However, it is also a particle, a photon. Physicist can explain how it is both but it is. Is sound also a wave and a soundton?
@JayGatsbyOdysseus Sound is just air vibrating in such a way that your ears find meaningful. There are no particles involved except the molecules in the air that are vibrating.
Light is of an entirely different nature. In some ways it behaves as it would if it were a particle, but then you study it some more and find out that it behaves as it would if it were a wave. In fact, as you said it is both.
How can this be? It's the nature of it. The inconceivable nature of nature!
His fraternity challenges sound very intellectual. I thought that fraternities made guys drink 20 beers and then swim across the fountain with lit candle in their ass or something like that, not solve physics problems. Maybe it's changed since the 40s.
So if light and heat and radio waves are all the same thing but at different wave lengths, what is it that is oscillating? Light particles? That would mean that a radio transmitter transmits light particles. That hurts my brain. Someone help?
@Paggee Electromagnetic waves are electric and magnetic field oscillating, one driving the other. There's no medium of propagation, electromagnetic waves can propagate in total vacuum. You could say it's pure energy propagating (quanta, photons) that exhibits wave-like properties.
@nsrussell267 the "10 dimensions" stuff was invented by string theorists. An untestable, unprovable made-up mumbo jumbo that they themselves cannot understand. Richard Feynman disliked string theory. If you watch more stuff about Feynman you will eventually understand that this guy believes only in the stuff that is tested and proven and everything else is just "well it could be true or could be not true, I don't know". String theory is like a religion at this moment.
Thinking about using the information from the waves on the water to figure out everything about who dived in, when, and where.... it's actually a kind of simplistic explanation of the holographic principle as well. And I don't think the holographic principle was even properly known about when Feynman was alive.
anyway my followup reasoning would then be that if the light bulb waves have gaps between them of say .0008333 seconds (just as a hypothetical), then perhaps as they bounce around the room (perhaps no more than 1-2 bounces before they are attenuated to zero?), maybe they are barely missing colliding with each other as they zip in front of Prof. Feynmann's face??
thats the only thing I can come up with lol... I am searching for an "official" explanation... has this trait been solved already??
@leet512 light waves don't collide with each other, they can all travel in the same medium at the same time in any direction without interrupting each other. Try this experiment: put to mirrors parallel to each other, look at one of them close to a right angle, count how many repetitions of the same image you see and now think how many times light bounced before reaching your eye. Light bounces losing intensity depending on surface color or shape.
as an amateur scientist, the only explanation I can cobble together is that Tungsten filaments in light bulbs emit photon wavicles many times per second... at a rate so high that it appears to be continuous radiation to us
if 29.97 frames/second was a sufficient number for Hollywood to use for decades to give the appearance of continuous motion... then 1200 wavicles per second would certainly fool us into thinking the filament emissions were continuous
as an amateur scientist, the only explanation I can cobble together is that Tungsten filaments in light bulbs emit photon wavicles many times per second... at a rate so high that it appears to be continuous radiation to us
if 29.97 frames/second was a sufficient number for Hollywood to use for decades to give the appearance of continuous motion... then 1200 wavicles per second would certainly fool us into thinking the filament emissions were continuous
and in the radiowave medium, one of the reasons the FCC regulates unlicensed radio transmitters is because of their ability to interfere with the emergency channel broadcasts of other transmitters which could ultimately result in calamity
then you have heat waves rising off a hot tarmac that do interfere with and distort lightwaves resulting in "mirages"
and yet, the lightwaves of someone to his left don't seem to interfere with the lightwaves of someone in front of him... how can this be??
yes it is quite baffling that somebody to his left can see somebody to his right with no visual interference or distortion... this has never made sense to me and I wonder if somebody could explain to me how it is possible??
for example in the medium of water high amplitude crests and troughs can certainly interfere and distort other waves that they happen to come in contact with
yes it is quite baffling that somebody to his left can see somebody to his right with no visual interference or distortion... this has never made sense to me and I wonder if somebody could explain to me how it is possible??
for example in the medium of water high amplitude crests and troughs can certainly interfere and distort other waves that they happen to come in contact with
One question I have is, do all these waves or some more than others affect us especially our mind, An experiment to answer this might be to live in a cave for a while or something
@westfieldwx Oh no...I only just discovered this guy and have been going through all his videos loving his character and enthusiasm for science to come across you're comment. I noticed it was said in past tense and my mood suddenly dropped from amusement to despair before googling his name and realizing he had past away a year after I was born. I'm at a loss...I feel like I just met him. This is like discovering Carl Sagan as a kid only right after he had died...I feel so...at a loss...
Neil Degrasse Tyson exudes this same enthusiasm toward science and I love them both for it. We need more of this zeal and fervor in teachers teaching at high school/elementary level. It would change a number of student's lives in a positive way.
This is probably my favorite video in the series. And you can extend this thinking to new technologies. You have to add 3G and Wi-Fi internet signals. Right now in my apartment information from countless websites that neighbors are visiting at home and countless passersby are browsing on their smartphones (thankfully encrypted for security) is also flying through the very same electric field that Feynman is describing here. "The inconceivable nature of nature."
@ararat123457 absolutely. I can't be the only person who would rather pay good money to sit and watch stuff like this for a couple of hours in a cinema than any bit of hollywood crud
I had a teacher at Schaumburg High School named Mr. Gerz back in the 70's. He was like this. He enjoyed teaching us physics and he had a real love for teaching. Great teachers are such a gift.
@ififif31 I would make this guy, Carl Sagan and Richard Dawkins required material, and them at a bare minimum! There are plenty more interesting voices out there.
@ififif31 I would make this guy, Carl Sagan and Richard Dawkins required material, and them at a bare minimum! There are plenty more interesting voices and ideas out there.
I love how Feynman was a Genius and regular dude. I've heard stories about him spending time at the local strip joint while working on figuring out his work. So next time you girlfriend says something about looking at nude women just tell her it worked for Feynman so it can't be that bad. LOL
This vid got one dislike, who on earth would have a defective enough brain to dislike this and yet be able to navigate the internet, or even read a single word? Thus, it must have been a mistake.
@Xytos nice racist acuation by making a racist assumption yourself based on how he looks... you idiot. it's people like you that make this world shitty.
If every teacher in this world was like this guy we would have had more scientists then we would have known what to do with - he has this talent of making everything dazzlingly fascinating!
Thanks for your comment. Actually, microwaves ARE part of the electromagnetic spectrum. What I didn't know is that microwaves are part of the high-energy particles known as "cosmic rays". I dón agree though with the other fellow saying that everything is both a particle and a wave. I think there is some confusion there.
@caltgelt No, the other guy is right - all objects are both particles and waves! There's something called the de Broglie relations that show that a wave-particle's wavelength is inversely proportional to its momentum. For any macroscopic object, the momentum is so big that the wavelength is incredibly small - hence no wavelike properties are observed. My wavelength is on the order of 10^-35 nanometers. Things like electrons, protons, and even buckyballs can be diffracted like waves, though!
@gocrimson10 I didn't know that, thanks. Having said that, when I look myself in the mirror I picture a whole bunch of particles put together, OK, in my case in a haphazard manner, but I don't picture a lot of waves. That's why I picture cosmic rays as particles, not waves. All in all, I think that it was a slip of the tongue on Feunman's case.
@caltgelt ~ no not really. the particles move in waves... the mass is the particle I.E.: an electron... we'll go with a microwave "magnetron (cyclotrons are similar, but harder to explain in truncation). Putting this in laymen terms, so bear with me.
As the current is fed into the magnetron chamber (terminate coil), they literally bounce back and forth in the chamber at a particular tuning for the frequency of those reciprocations. Microwaves are between 300M and 300G hz. If memory serves.
@caltgelt ~ as they "fill" the chamber (after all, they are particles), they pour out the emitter, still vibrating at the freq dictated by the size of the chamber.
Not cosmic waves at all, even though those frequencies may be the same, it is the type particle thats different (only 1 - 2 % of cosmic rays are electrons, the majority are ultra-ionized alpha particles (protons & neutrons) ejected from cataclysmic solar events (supernovas, pulsars, etc.).
@LaserParody I have to admit that this isd the first time that I read "that light is protons." That goes against everything I have studied refarding electromagnetic waves!
Any one notice that we can sense the movements in the pool and tell who did what from where? The waves are pressure differences in the water, and if you're in the pool, You do have a small hole that can sense it. It's Your ear. You can hear the Waves in the pool and tell what's happening
@caltgelt actually cosmic rays consist of (among other things) microwave radiation. these are indeed high-energy particles, tho we call them photons wich u probably already knew but microwaves are a type of electromagnetic wave.
I Love listening to this stuff. He just made me get something that I never got before. That the electric field exists even if there were no waves in it. Just like the water in the pond is still there even if there are no waves in it. A whole bunch of things suddenly make more sense now.
What a brilliant clip. It's just a shame he says that some waves are faster than others. That might cause some misconceptions for children who watch this.
@mooxim ~ the confusion I think is in you comprehension of the context of his saying "faster"... he refers to the oscillations, the "waves" . In that context, some waves oscillations are faster than others.
Children listening would be well put to hear it exactly as he said it, because the entire concept of "waves" to which he speaks is about the varying frequency (eg: relative speeds.)
@LaserParody I know what he means but it's not what he says. Some kids would miss the context and just hear that some light waves are faster than others.
@mooxim ~ we may have to agree to disagree here, because that IS exactly what he is saying, and it is exactly the case. Light WAVES are considered by their relative speeds.
Simply put (laser physics & stage/film lighting background):
Some light waves ARE indeed faster than others.
The LIGHT travels at a (was believed to be) constant speed - the oscillatory waves are a measure of speed.
@LaserParody yeah I just watched it again. he makes it fairly clear if you already know what he's talking about. I just meant that it might not be the best thing to show to children who haven't been introduced to frequency yet. Kids have a remarkable ability to take things in physics the wrong way. You have to be very explicit about what you mean. Although any good physics teacher should be able to explain what he meant if they did show this in class.
@mooxim ~ After a good point of reference shift, I see what your saying there, if they were to equate the idea of a wave to the overall "surge" of light rather than the imperceivable amplitude cycle...
This is just awesome. He makes you stop and think "WOW, I've never thought about it that way". He makes things so clear. I'm forever interested in what he has to say. A great man.
@freemind321 he is speaking of the observer effect and the energies we are surrounded by. if we say we only see something when our view of it is unobstructed, we think 3d. we think solid. when all anything is IS energy inside of skins and layers. we think onions. we think plasma. if we think of our eyes and minds as the 'grounding' of energy, it forming something we can interpret with our perception. we can't imagine something we cannot see. therefore can it exist without conscious? self-denial.
@theimperfektman Um, no. He's not. He's talking about magnitude of nature, its interrelatedness (materially), and the complex interactions of (physical) things. He's not even touching on the entanglement, spooky action at a distance; he's not even petting Schroedinger's cat.
I think about stuff like this all the time, but I guess some people don't.
culwin 1 day ago
Did he really say that long waves travel slower?
Sorry Feynman, there is no dispersion for EM waves in air/vacuum.
paulnord 1 week ago
@paulnord not sure if trolling
escriticapop 1 week ago
@paulnord He said water waves were
redrum41987 5 days ago
@paulnord I think by "slower" he meant lower frequency.
BlindSoothsayer 2 days ago
@paulnord You saw all the video and you comment about this?
mvszao 13 hours ago
ಠ\_ಠ
rodmcnicoll1 1 week ago
Light is an electromagnetic wave. However, it is also a particle, a photon. Physicist can explain how it is both but it is. Is sound also a wave and a soundton?
JayGatsbyOdysseus 2 weeks ago
@JayGatsbyOdysseus Sound is just air vibrating in such a way that your ears find meaningful. There are no particles involved except the molecules in the air that are vibrating.
Light is of an entirely different nature. In some ways it behaves as it would if it were a particle, but then you study it some more and find out that it behaves as it would if it were a wave. In fact, as you said it is both.
How can this be? It's the nature of it. The inconceivable nature of nature!
escriticapop 2 weeks ago
But, this is awesome! He is making even me feel brilliant.
Penthaligon 3 weeks ago
whats his story?
Graath666 1 month ago
@Graath666 Caltech genius of paticle interaction.
crangdaniel 3 weeks ago
A brilliant man.
epsdelta 1 month ago
His fraternity challenges sound very intellectual. I thought that fraternities made guys drink 20 beers and then swim across the fountain with lit candle in their ass or something like that, not solve physics problems. Maybe it's changed since the 40s.
tostare 1 month ago
So if light and heat and radio waves are all the same thing but at different wave lengths, what is it that is oscillating? Light particles? That would mean that a radio transmitter transmits light particles. That hurts my brain. Someone help?
Paggee 1 month ago
@Paggee Electromagnetic waves are electric and magnetic field oscillating, one driving the other. There's no medium of propagation, electromagnetic waves can propagate in total vacuum. You could say it's pure energy propagating (quanta, photons) that exhibits wave-like properties.
Ixezed 1 month ago
5:38
WelcometotheUnknown 2 months ago
Comment removed
WelcometotheUnknown 2 months ago
905 likes 1 dislike!
Aletheophile 3 months ago in playlist Richard Feynman
Every time I feel a bit down, all I have to do is get a good dose of Feynman. Cheer you right up...
PapiJack 3 months ago 4
wonderous, how IQ is not so much involved in genius. He had an IQ of "only" 125. This inspires me to study physics :)
Jipzorowns 4 months ago
Wow, interesting talk!
jagrmeister721 4 months ago
I wish this guy helped to explain the 10 dimensions video which is floating around on youtube.
nsrussell267 4 months ago
@nsrussell267 the "10 dimensions" stuff was invented by string theorists. An untestable, unprovable made-up mumbo jumbo that they themselves cannot understand. Richard Feynman disliked string theory. If you watch more stuff about Feynman you will eventually understand that this guy believes only in the stuff that is tested and proven and everything else is just "well it could be true or could be not true, I don't know". String theory is like a religion at this moment.
Indrius 2 months ago
@Indrius Incredible math... but unfortunately the theory is incredible too... As in NOT credible ... in-credible.
2eelShmeal 2 months ago in playlist RICHARD FEYNMAN Fun To Imagine
this gave me an acid flashback.
dangeresque429 4 months ago
we're all connected...
rgzdev 4 months ago
When I need Richard Feynman, I always find him in the YouTube. I can't even imagine he is not with us anymore!
freakiest421 5 months ago 2
Ugly women, making science possible!
ArachAU 5 months ago 8
Insane!, I say !
skum123 5 months ago
I imagine the camera man standing there with an open mouth and brains melting out of his ears.
FunkMasterFlex3 6 months ago 68
I used to think I was smart =(
iSecksYou 6 months ago 6
Thinking about using the information from the waves on the water to figure out everything about who dived in, when, and where.... it's actually a kind of simplistic explanation of the holographic principle as well. And I don't think the holographic principle was even properly known about when Feynman was alive.
kanojo1969 6 months ago
Thanks a lot for posting this :)
Platemaster 6 months ago
anyway my followup reasoning would then be that if the light bulb waves have gaps between them of say .0008333 seconds (just as a hypothetical), then perhaps as they bounce around the room (perhaps no more than 1-2 bounces before they are attenuated to zero?), maybe they are barely missing colliding with each other as they zip in front of Prof. Feynmann's face??
thats the only thing I can come up with lol... I am searching for an "official" explanation... has this trait been solved already??
leet512 7 months ago
@leet512 light waves don't collide with each other, they can all travel in the same medium at the same time in any direction without interrupting each other. Try this experiment: put to mirrors parallel to each other, look at one of them close to a right angle, count how many repetitions of the same image you see and now think how many times light bounced before reaching your eye. Light bounces losing intensity depending on surface color or shape.
danielpinedo 4 months ago
This has been flagged as spam show
as an amateur scientist, the only explanation I can cobble together is that Tungsten filaments in light bulbs emit photon wavicles many times per second... at a rate so high that it appears to be continuous radiation to us
if 29.97 frames/second was a sufficient number for Hollywood to use for decades to give the appearance of continuous motion... then 1200 wavicles per second would certainly fool us into thinking the filament emissions were continuous
leet512 7 months ago
as an amateur scientist, the only explanation I can cobble together is that Tungsten filaments in light bulbs emit photon wavicles many times per second... at a rate so high that it appears to be continuous radiation to us
if 29.97 frames/second was a sufficient number for Hollywood to use for decades to give the appearance of continuous motion... then 1200 wavicles per second would certainly fool us into thinking the filament emissions were continuous
leet512 7 months ago
and in the radiowave medium, one of the reasons the FCC regulates unlicensed radio transmitters is because of their ability to interfere with the emergency channel broadcasts of other transmitters which could ultimately result in calamity
then you have heat waves rising off a hot tarmac that do interfere with and distort lightwaves resulting in "mirages"
and yet, the lightwaves of someone to his left don't seem to interfere with the lightwaves of someone in front of him... how can this be??
leet512 7 months ago
This has been flagged as spam show
yes it is quite baffling that somebody to his left can see somebody to his right with no visual interference or distortion... this has never made sense to me and I wonder if somebody could explain to me how it is possible??
for example in the medium of water high amplitude crests and troughs can certainly interfere and distort other waves that they happen to come in contact with
leet512 7 months ago
yes it is quite baffling that somebody to his left can see somebody to his right with no visual interference or distortion... this has never made sense to me and I wonder if somebody could explain to me how it is possible??
for example in the medium of water high amplitude crests and troughs can certainly interfere and distort other waves that they happen to come in contact with
leet512 7 months ago
@leet512 Superpositioning?
Quasi84 6 months ago
Checking what's "going on" by analyzing the waves that comes out of it...
'Who'd have thunk it'?
fiesta181 7 months ago 5
@Searching1981
One person can't comprehend the words that are coming out of Feynman's mouth.
Caldwerld 7 months ago in playlist Learning from Feynman
@Egodrive, they just do it. They don't have a slow human brain to hold themselves back and question how they're going to do it.
Caldwerld 7 months ago in playlist Learning from Feynman
But you gotta stop and think about it to really get the pleasure about the complexity - the inconceivable nature of nature.
sooperknob 7 months ago
One person doesn't appreciate pure genius when they see it.
Searching1981 7 months ago
One question I have is, do all these waves or some more than others affect us especially our mind, An experiment to answer this might be to live in a cave for a while or something
jangofet555 8 months ago
@jangofet555 the question I would have is how these waves know what to do and how to do it :p
egodrive 7 months ago
Now i add to that my wifi, and the five other networks i pick up, all the mobile phones in my house and the cordless house phone!
Mopperty 8 months ago
LOL @ 3:56-3:57
turdban 8 months ago
"We swivel this ball about so that the hole moves...."... sounds so damned creepy.
Beauxdeauxfinglok 9 months ago
What a beautiful mind !
lasertuber 9 months ago
as randall munroe (mr. xkcd himself) put it, maybe someday science will get over its giant collective crush on richard feynman. but I doubt it!!
dasimon26 9 months ago
"And she's not too pretty, so i can think of something else".
Such a wit he had.
westfieldwx 9 months ago 4
@westfieldwx Oh no...I only just discovered this guy and have been going through all his videos loving his character and enthusiasm for science to come across you're comment. I noticed it was said in past tense and my mood suddenly dropped from amusement to despair before googling his name and realizing he had past away a year after I was born. I'm at a loss...I feel like I just met him. This is like discovering Carl Sagan as a kid only right after he had died...I feel so...at a loss...
DamienZshadow 7 months ago
I proclaimed to one of my closest friends that there is only one true reality. He couldn't agree.
Once you realize that a person cannot agree with 'one true reality', you have to let them go. Cognitive dissonance has killed your friend.
WickeDFate4 10 months ago
Best parts?
2:29 and 5:03
kennyjburke 10 months ago
@kennyjburke no, Best parts... 0:00 to 5:52
nachoseg 10 months ago 2
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kennyjburke 10 months ago
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kennyjburke 10 months ago
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kennyjburke 10 months ago
Neil Degrasse Tyson exudes this same enthusiasm toward science and I love them both for it. We need more of this zeal and fervor in teachers teaching at high school/elementary level. It would change a number of student's lives in a positive way.
scrupulousDon 11 months ago 5
TREMENDOUS MESS.
tc2kgt 11 months ago 4
TREMENDOUS MESS.
tc2kgt 11 months ago 2
This is probably my favorite video in the series. And you can extend this thinking to new technologies. You have to add 3G and Wi-Fi internet signals. Right now in my apartment information from countless websites that neighbors are visiting at home and countless passersby are browsing on their smartphones (thankfully encrypted for security) is also flying through the very same electric field that Feynman is describing here. "The inconceivable nature of nature."
Binarynova 11 months ago 2
I cant believe people pay $ to go to the movies when all THIS is FREE on you tube.
Amazing !
ararat123457 1 year ago 198
@ararat123457 absolutely. I can't be the only person who would rather pay good money to sit and watch stuff like this for a couple of hours in a cinema than any bit of hollywood crud
fauxsham 8 months ago
@ararat123457 i cant believe people go to the movies while we could all listen to radio Moskou!
indoric 7 months ago
@ararat123457 Well said.
2eelShmeal 2 months ago in playlist RICHARD FEYNMAN Fun To Imagine
This man is my current teenage hero. I only hope to be half the legend he was when I am older.
123conundrum 1 year ago
Richard Feynman is the most interesting man in the universe
Buckbaggums 1 year ago 6
What was his personal belief about a 'higher power' responsible for existence ?
I can only think that the man who can see the world in this way eventually came to some conclusion about it all.
DonJuanDeMarco2 1 year ago
@DonJuanDeMarco2 youtube.com/watch?v=_MmpUWEW6Is
0nfir3 1 year ago
@0nfir3 Wow, thank you so much. That answered the quesiton perfectly lol.
This man has such a wonderful perspective on life.
DonJuanDeMarco2 1 year ago
@DonJuanDeMarco2 The same conclusion as whom?
ehwood99 1 year ago
@ehwood99 'some' conclusion i wrote..
Glasses !
DonJuanDeMarco2 1 year ago
I had a teacher at Schaumburg High School named Mr. Gerz back in the 70's. He was like this. He enjoyed teaching us physics and he had a real love for teaching. Great teachers are such a gift.
ToughToeNails 1 year ago
brilliance
thelighteningbolt519 1 year ago
"The inconceivable nature of nature". Thank you ChristopherJSykes for uploading these videos.
aressaissi 1 year ago
They should show these clips to high school students to get them interested in math and science!
ififif31 1 year ago 6
@ififif31 I would make this guy, Carl Sagan and Richard Dawkins required material, and them at a bare minimum! There are plenty more interesting voices out there.
ehwood99 1 year ago 2
@ififif31 I would make this guy, Carl Sagan and Richard Dawkins required material, and them at a bare minimum! There are plenty more interesting voices and ideas out there.
ehwood99 1 year ago
Wow I can't stop smiling while i watch him idk what it is but He is simply AMAZING :D
timhope193 1 year ago
I love how Feynman was a Genius and regular dude. I've heard stories about him spending time at the local strip joint while working on figuring out his work. So next time you girlfriend says something about looking at nude women just tell her it worked for Feynman so it can't be that bad. LOL
IlovemyGlock21 1 year ago 4
@IlovemyGlock21 He was also an accomplished Safecracker, a trick he picked up when working in Los Alamos.
Vennificus 1 year ago
He really has a talent for telling stories. Everything he says is said in a funny, appealing way. He makes science sounds like so much fun !
lolas4444 1 year ago
This, ladies and gentlemen, is why I studied engineering.
beenn15 1 year ago 3
Tried the link, got "Not Available in Your Area."
Kizeh 1 year ago
This vid got one dislike, who on earth would have a defective enough brain to dislike this and yet be able to navigate the internet, or even read a single word? Thus, it must have been a mistake.
zer0dahero 1 year ago 4
@zer0dahero I was equally horrified.
PopeSnowball 1 year ago
This has been flagged as spam show
this guy was probably a nigger hater
Xytos 1 year ago
@Xytos nice racist acuation by making a racist assumption yourself based on how he looks... you idiot. it's people like you that make this world shitty.
daguy069 1 year ago 3
@Xytos teenagers are not as interesting as they think they are
MrAdaLovelace 1 year ago 32
@Xytos ur much too young to make any sense of what he's saying so you lash out with ignorance.
zer0dahero 1 year ago
@zer0dahero Over the years I have learned age and maturity seldom have any relation.
theNewCodingFrontier 1 year ago
@theNewCodingFrontier Do you have statistical data to confirm your assertion?
zer0dahero 1 year ago
@zer0dahero No, only personal experience. In fact I'm quite ill prepared to argue on this subject. Curses.
theNewCodingFrontier 1 year ago
If every teacher in this world was like this guy we would have had more scientists then we would have known what to do with - he has this talent of making everything dazzlingly fascinating!
eran5005 1 year ago
Thanks for your comment. Actually, microwaves ARE part of the electromagnetic spectrum. What I didn't know is that microwaves are part of the high-energy particles known as "cosmic rays". I dón agree though with the other fellow saying that everything is both a particle and a wave. I think there is some confusion there.
caltgelt 1 year ago
@caltgelt No, the other guy is right - all objects are both particles and waves! There's something called the de Broglie relations that show that a wave-particle's wavelength is inversely proportional to its momentum. For any macroscopic object, the momentum is so big that the wavelength is incredibly small - hence no wavelike properties are observed. My wavelength is on the order of 10^-35 nanometers. Things like electrons, protons, and even buckyballs can be diffracted like waves, though!
gocrimson10 1 year ago
@gocrimson10 I didn't know that, thanks. Having said that, when I look myself in the mirror I picture a whole bunch of particles put together, OK, in my case in a haphazard manner, but I don't picture a lot of waves. That's why I picture cosmic rays as particles, not waves. All in all, I think that it was a slip of the tongue on Feunman's case.
caltgelt 1 year ago
@caltgelt ~ no not really. the particles move in waves... the mass is the particle I.E.: an electron... we'll go with a microwave "magnetron (cyclotrons are similar, but harder to explain in truncation). Putting this in laymen terms, so bear with me.
As the current is fed into the magnetron chamber (terminate coil), they literally bounce back and forth in the chamber at a particular tuning for the frequency of those reciprocations. Microwaves are between 300M and 300G hz. If memory serves.
LaserParody 1 year ago
@caltgelt ~ as they "fill" the chamber (after all, they are particles), they pour out the emitter, still vibrating at the freq dictated by the size of the chamber.
Not cosmic waves at all, even though those frequencies may be the same, it is the type particle thats different (only 1 - 2 % of cosmic rays are electrons, the majority are ultra-ionized alpha particles (protons & neutrons) ejected from cataclysmic solar events (supernovas, pulsars, etc.).
Light is protons, not electrons, as well.
LaserParody 1 year ago
@LaserParody I have to admit that this isd the first time that I read "that light is protons." That goes against everything I have studied refarding electromagnetic waves!
caltgelt 1 year ago
@caltgelt ~ yaaa, I had been up after a double shift then hours at home (kid on way).... I meant photons.
LaserParody 1 year ago
@LaserParody Pfeeew! For a moment I thought I was going bokers! .)
caltgelt 1 year ago
@caltgelt ~ essentially, it takes a particle to move in "waves"... or there would be nothing.
The question of particle type, and velocity are the delineation of type of emission.
LaserParody 1 year ago
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caltgelt 1 year ago
i love how he says "by the nature of the irregularites..." at 0:40
jimmyti9cer 1 year ago
He knew his final sentance was badass.
jackp22 1 year ago 4
Any one notice that we can sense the movements in the pool and tell who did what from where? The waves are pressure differences in the water, and if you're in the pool, You do have a small hole that can sense it. It's Your ear. You can hear the Waves in the pool and tell what's happening
Vennificus 1 year ago
Good point, although at this moment I'm feeling more like a particle. :)
caltgelt 1 year ago
A minor point: cosmic rays are not "rays" as suich, i.e., they're not electromagnetic waves but high-energy particles.
caltgelt 1 year ago
@caltgelt Wave-particle duality: Everything is both :P
L1ama 1 year ago
@caltgelt actually cosmic rays consist of (among other things) microwave radiation. these are indeed high-energy particles, tho we call them photons wich u probably already knew but microwaves are a type of electromagnetic wave.
jimmyti9cer 1 year ago
i'll bet that the single dislike for this video was just someone clicking in the wrong place, such is the incredible nature of this video
Skuu 1 year ago 7
If we actually had teachers that was half as good & interesting as he is.. then I would've payed more attention in school, much more.
JackeShanTwo 1 year ago 2
Even more amazing than his knowledge is his fascination with science. Without the sound i d be thinking he is talking about orgasms.
omnissient 1 year ago 4
Comment removed
caltgelt 1 year ago
This has been flagged as spam show
@omnissient That's a very funny and excellent way to describe Feynan's enthusiasm for science and life in general !
caltgelt 1 year ago
makes you wonder what else is there
0oRouseticalo0 1 year ago
I Love listening to this stuff. He just made me get something that I never got before. That the electric field exists even if there were no waves in it. Just like the water in the pond is still there even if there are no waves in it. A whole bunch of things suddenly make more sense now.
headybrew 1 year ago 6
im so impressed of him, i love to listen to his theories and funny mimic which made me laugh out of my heart
Lomitik 1 year ago
What a brilliant clip. It's just a shame he says that some waves are faster than others. That might cause some misconceptions for children who watch this.
mooxim 1 year ago
@mooxim he meant greater frequency...
elfmotat 1 year ago
@mooxim ~ the confusion I think is in you comprehension of the context of his saying "faster"... he refers to the oscillations, the "waves" . In that context, some waves oscillations are faster than others.
Children listening would be well put to hear it exactly as he said it, because the entire concept of "waves" to which he speaks is about the varying frequency (eg: relative speeds.)
LaserParody 1 year ago
@LaserParody I know what he means but it's not what he says. Some kids would miss the context and just hear that some light waves are faster than others.
mooxim 1 year ago
@mooxim ~ we may have to agree to disagree here, because that IS exactly what he is saying, and it is exactly the case. Light WAVES are considered by their relative speeds.
Simply put (laser physics & stage/film lighting background):
Some light waves ARE indeed faster than others.
The LIGHT travels at a (was believed to be) constant speed - the oscillatory waves are a measure of speed.
Waves = varying speeds.
LaserParody 1 year ago
@LaserParody yeah I just watched it again. he makes it fairly clear if you already know what he's talking about. I just meant that it might not be the best thing to show to children who haven't been introduced to frequency yet. Kids have a remarkable ability to take things in physics the wrong way. You have to be very explicit about what you mean. Although any good physics teacher should be able to explain what he meant if they did show this in class.
mooxim 1 year ago
@mooxim ~ After a good point of reference shift, I see what your saying there, if they were to equate the idea of a wave to the overall "surge" of light rather than the imperceivable amplitude cycle...
LaserParody 1 year ago
High as a kite:)
theadvent123 1 year ago 3
Now you know how to win a Nobel Prize: The key ingredient is called "enthusiasm".
echeniquepyt 1 year ago
i feel sorry for myself for not having had any teacher like you in my past.
akifdenkel 1 year ago
how many of you know someone who laughs just like this wonderful teacher ? : D
AbdulRButt 1 year ago
THE EYE! @ 4.00 ahahahha
This guy is so funny!
mikesBikesZeit 2 years ago 5
3:57 is win
BrendanIsCool 2 years ago 4
@BrendanIsCool lol I didn't notice that
mooxim 1 year ago
This is just awesome. He makes you stop and think "WOW, I've never thought about it that way". He makes things so clear. I'm forever interested in what he has to say. A great man.
sfurner 2 years ago 6
5:04 aint too shabby
NekoBus1747 2 years ago
5:04 aint too shabby
NekoBus1747 2 years ago
this man is unbelievable. I always smile when I see him smile. His joy for everything is so great
Schmeislinger 2 years ago 171
LOL @ 3:55
Mchlgraca15 2 years ago 2
keep clicking the play bar at 4:07 for some pirate action
youwinoneinternets 2 years ago 42
try 3:57 too
TTPrometheuS 2 years ago 4
What are we trying to do...? I mean, why do I have to keep pressing play???
driftforce015 2 years ago
I don't get it...what's that supposed to mean???
driftforce015 2 years ago
arrr and sex
john45100 2 years ago
OOOh, I been saw that then! I knew it had to mean that but I got confused cause "youwinoneinternets" said pirate action...
driftforce015 2 years ago
@youwinoneinternets You're my hero.
drbeene 1 year ago
@youwinoneinternets LOLLLLLLL
Rel7eGaDe 11 months ago
@youwinoneinternets
it is , 4.06
szlagjasny 10 months ago
Its not only the radio!!
If you turn on your television in an untunned channel you'll "see" those waves! :)
luarionte 2 years ago
clap.
clap.
clap.
Homoloquenslibidinus 2 years ago 2
I think Feynman is describing what we would know nowadays as "the matrix". Such a great mind.
freemind321 2 years ago
how so?
HndrxGTR88 2 years ago
What do we know as 'the matrix"?
diomedes39 2 years ago 2
rectangular array of numbers
m4c13k86 2 years ago
i know some linear algebra lol. i don't think that's what he meant, so i was trying to get him to clarify
diomedes39 2 years ago
i know, lol, he watches too much movies
m4c13k86 2 years ago
@freemind321 he is speaking of the observer effect and the energies we are surrounded by. if we say we only see something when our view of it is unobstructed, we think 3d. we think solid. when all anything is IS energy inside of skins and layers. we think onions. we think plasma. if we think of our eyes and minds as the 'grounding' of energy, it forming something we can interpret with our perception. we can't imagine something we cannot see. therefore can it exist without conscious? self-denial.
theimperfektman 2 years ago
@theimperfektman Um, no. He's not. He's talking about magnitude of nature, its interrelatedness (materially), and the complex interactions of (physical) things. He's not even touching on the entanglement, spooky action at a distance; he's not even petting Schroedinger's cat.
KnowKnot 2 years ago 6
that's what i was saying. Unity.
theimperfektman 2 years ago
Comment removed
thiem17 2 years ago
"electrons pushed back and forth"
holy shit, i never thought of it that way before.
thank you, feynmann!
icannotfly 2 years ago 3
God I wish he was my grandfather. I'd sit and talk with him all day.
oprescualex 2 years ago 179
@oprescualex If he was your grandfather, I would have to kill you and assume your identity. Nothing personal, you understand
elgordo420 1 year ago
@oprescualex Your own grandfather probably has a lot of things of value to say as well. You just have to find out how to ask them.
ctiebs 1 year ago
Protip: Physicists get the best pot.
vect0rwolf 2 years ago 5
i hear