How Can Light Have Momentum?
13:33
5 жыл бұрын
Пікірлер
@l.m.892
@l.m.892 2 күн бұрын
"When I was in high school" tells a lot. A good analogy would be "sending water through a water hose" for a closed or open circuit.
@emorytaylor4667
@emorytaylor4667 8 күн бұрын
Who are you and what degree do you have?
@TruePeaceSeeker
@TruePeaceSeeker 8 күн бұрын
You're amazing, thank you 🙏
@xzxoxlx
@xzxoxlx 11 күн бұрын
This is an unbelievably great video.
@InquilineKea
@InquilineKea 11 күн бұрын
is this a form of surfaced-enhanced raman?
@jocelyndryfoos2681
@jocelyndryfoos2681 14 күн бұрын
Can a mirrored room be designed so that photons from a light absorb and reflect at a rate that prevents radiation pressure expansion while maximizing reflectivity? Hence, one would turn on a light for 1 sec and the room would stay bright for 8 hours before going dark and the room does not break from the pressure
@kpk331
@kpk331 22 күн бұрын
The disputed statement is the stand of Classical electromagnetic field theory. And is backed by Maxwell's equations.
@DrDeuteron
@DrDeuteron 25 күн бұрын
So you have a minor mistake at 6:00. If you start moving the negative line charge, it will Lorentz contract and make a negative charge on the “wire”. Rather, you need to accelerate individual charges a la Bells Spaceship Paradox so they remain with constant spacing in the lab frame. This means that in their own frame at speed, they will spread out by the Lorentz factor gamma (the string in the paradox breaks). Moreover in their final rest frame the protons will be contracted by gamma, for a total charge density factor g - 1/g = gamma X beta….which works with the LT of E and B fields.
@l.m.892
@l.m.892 2 күн бұрын
The mistake was to refer to "charges" rather than "charged particles" the source of all electric charges is charged particles.
@ladiesman2048
@ladiesman2048 26 күн бұрын
That's not how you play pinball
@dominiqueubersfeld2282
@dominiqueubersfeld2282 28 күн бұрын
This guy never learned Maxwell's equations. The first property of Mawxell's Equations is their linearity. Basically if A and B are two solutions of a linear system, then any linear combination of A and B is also a solution. This allows wireless communication. This video is the epitome of the Dunning-Kruger effect.
@giovannicicerchia4726
@giovannicicerchia4726 Ай бұрын
Hi guys. I m searching à men... Thé magnetic comes from the derivative of à sine, which is à cosine. So the maximum of magnetic field come 90° after the max of electric wave. Does somebody understand me? All the internet take the max of E in the same time of the max of magnetic, which is false. Do someone agree? There is two équations which explain derivative E = B and Derivative B=E in the four maxwell équations. Hello.
@l.m.892
@l.m.892 2 күн бұрын
One only need to look at the generation mechanism for light: Lyman, Balmer, Paschen ... To derive what he is trying to explain. The time domain is involved. What he is missing in his explanation of time retardation is the very small distances mean very small times. A light second is approximately 300,000 Km (7.5 times the circumference around the equator, or the approximate distance from Earth to moon). You would need a very large velocity and special sensors to measure this and be accurate.
@robertburdge5706
@robertburdge5706 Ай бұрын
At the very beginning of your video you state that, "Changing Magnetic Fields DON"T Cause Electric Fields". Within this Charge-centric formulation of Maxwell's Equations, what is the mechanism for the induced current in a wire loop when a permanent magnetic is in motion near the wire loop?
@honeydavis5568
@honeydavis5568 Ай бұрын
The better the channel the fewer subscribers. The free power with spark plugs and capacitors gets 10 billion hits
@duribv
@duribv Ай бұрын
You are the one making misconceptions. The acceleration you do at 16:40 actually creates perfect electromagnetic sine waves, but there are multiple of them and this is their sum. Did you ever hear about the Fourier transformation? Your concept works until you get to the quantum mechanic, where charges are picky and do not react with every field they get in contact with.
@avinashmulewa
@avinashmulewa Ай бұрын
keep doing it........
@avinashmulewa
@avinashmulewa Ай бұрын
what an awesome explanation............thank you this really helped me a lot............A big thank you.......
@jxnnzm2986
@jxnnzm2986 Ай бұрын
This is an very good explanation, I've had 2 uni lectures that didnt make it as clear as this video did!
@godfreyw5412
@godfreyw5412 Ай бұрын
This video is gold
@TheHaykokalipsis
@TheHaykokalipsis Ай бұрын
I did not understand it, so its a bad explanation with almost 0 animation of wavey electrons interacting with protons. i am utterly dissapointed at you and myself, but mainly you, because i hate feeling stupid, and your video does not explain the subject enough that i could understand, thus making me feel stupid. How dare you? !
@adairjanney7109
@adairjanney7109 Ай бұрын
So, like most thing they have no clue what they are looking at but pretend like they have it all figured out
@Anita95_original
@Anita95_original 2 ай бұрын
Is it current or ... dated?
@PhysicalScience-vi4nq
@PhysicalScience-vi4nq 2 ай бұрын
This is called "Philosophy of Science".
@5678plm
@5678plm 2 ай бұрын
the real picture is the QED one, all this is classical/vague
@stillpointx2623
@stillpointx2623 2 ай бұрын
Anyone know where to find any lectures dealing with nanobubbles with electrostatics? The paper is called Massive generation of metastable bulk nanobubbles in water by external electric fields. I haven't been able to find a video showing how to make these.
@dylanmenzies3973
@dylanmenzies3973 2 ай бұрын
Then the obvious question.. can we conceive of a universe without charge but with EM fields. The answer certainly yes because we can find solutions that cover empty space. However physically may be impossible, just as gravity cannot exist without mass-energy.
@AlexanderShamov
@AlexanderShamov 13 күн бұрын
As long as our theories only describe local phenomena, we can't really rule out the possibility of fields that aren't "sourced" by anything. GR definitely has no problem with a Ricci-flat world with no matter.
@Mcfreddo
@Mcfreddo 2 ай бұрын
Yes but in terms of electric current, they are energy waves moving, but there's a charge....
@watdanuqta-mf5ms
@watdanuqta-mf5ms 2 ай бұрын
Someone on an audio website insists that the electrical current in a power cord permanently affects, changes, undergoes some sort of molecular rearrangement of the dielectric material around it with its interaction with it and refers to it as "burn-in". I could understand that different insulating materials can affect the current through the wire but make permanent changes in the wire?
@Out_of-_Box_Thinker
@Out_of-_Box_Thinker 2 ай бұрын
Load of hogwash!
@puneettripathi740
@puneettripathi740 2 ай бұрын
yes sir we would like to learn the difference between conductors and insulators using quantum mechanics.
@manofyhwh
@manofyhwh 2 ай бұрын
Thank you! I’ve been trying to understand electromagnetism but the relationship between electric fields, magnetic fields and radiation didn’t make sense intuitively. Now it does. Please keep up the good work by illuminating misconceptions and limitations of conventional explanations.
@manofyhwh
@manofyhwh 2 ай бұрын
Thank you!
@Frank-ie8dh
@Frank-ie8dh 2 ай бұрын
Fantastic explanation
@havoklad7616
@havoklad7616 2 ай бұрын
Thank you so much man!
@5678plm
@5678plm 2 ай бұрын
just a rewording of the misconceptions
@ELYOUSFIWORLD
@ELYOUSFIWORLD 3 ай бұрын
why in 5:20 if light is bent to the left imply that the light have to push the lenz to the right ??
@malaraghavan6740
@malaraghavan6740 3 ай бұрын
Awesome explanation for non-physics majors. Thank you! Can you please also explain magnetism diamagnetic, paramagnetic and superparamagnetic in the context of nano magnetism and ferrofluids?
@lorisfoucart2475
@lorisfoucart2475 3 ай бұрын
I'm probably making jibberish but I'd like to know why. If we found the frequency of light needed to push off of dark matter or ultrared lights scattered in the universe (or something 😅), could we produce thrust by blasting the said frenquency at it ?
@junak777
@junak777 3 ай бұрын
Imagine now Tesla telling us long before 1905 that everything is magnetic potential( voltage,height,accidity etc). That electrons are bubbles. Bubble foam..all that fency words of quantum etc... Wavey MOire. MIura...Moriya, Morin... Memento mori, post mortem. And finally that his machines need no electrons... AMPerage is obsolete. Today we use z-pinch. BAck than Tesla and many other researchers were making very very strong lightnings. Stronger than Venezuela lake. Science uses wire as battery. 1 in 1 out. To explain electricity. Something is destroyed, and later shortcircuited. Tesla distanced wire from magnetic potential. [That distance is Shu as rising EMPty from Ogdoad. Shu ~ cha.] Magnetic potential - charge - ion ..... that is base. EN-ergy is sum of ch-arges. Both charge and energy have gyro within term names. EN illuminates cenote pore hole (indirectly valleytronics) . ENtropy, ENtalphy,penta, entangle, bent vent dent.. Rotation is heat. Angle. Loss. Neutrons giving in fusion all that heat. But in mitochondria heavy water kills en-gine. Tesla was able to place 170 000 V input to get 12 million V of output. Fusion plans to use 50 MWatts to make 500MWatts. Tesla was the 1st who made 1TWatt. Interesting how that works... History hysteresis.. UP DOWN DEN SITY. To Tesla vibration was father tri-dent to all. O-OOO Ψ Other names. Standing ovations, B o-sci-llations,diSTurBance. STate taSTe. [ance ~ anda... cenote resonance = r-nose-ance anda = duMMB eL-Lip-soid, 2 of..(p)repel +++ reBel..Helice and Bobbin around the ring of fire] 1) To wave or pitch or fre34=5qu-ency or rate or proportion or back-forth to carrier , medium, field. 2) To transfer of en-ergy. Holes and permeability as hole conNECTivity neST. Or MoMentum. 3) To matter. It is interesting how dishonest teachs pour down "knowledge" to cover lack of spiritual eye. For instance lightning is not up down motion. It is SATURatioN. Sideways. Like the Avatars head arrow. Anyways thanks a lot. I hope I was not boring. Those indents, gaps are source to blue red shift phase face facet genus. Clusters bands. LayeRing. Blue is wider. Red closer. Doppler doppelganger rainBow.Superconductance... walls.. Archeology remembers White Bee. To me hexa -gon -mer is important gap to white light. Also hexagon net is energy web. Dodecahedron yellow path is interesting video. New scalar physics too. It would be interesting to make video, comparation among water, light and glass. Granular surface tension is up down and differs to Chladni.
@jorgerive7335
@jorgerive7335 3 ай бұрын
this is different than how I was taught physics! it'll take a while to digest. Thank you.
@johnnywilliams2641
@johnnywilliams2641 4 ай бұрын
I thought light was waves and particles, the wave particle duality. What kind of hogwash did you just rattle my last neuron with, you refuse center troll you.
@RocketScientistNuvo
@RocketScientistNuvo 4 ай бұрын
Excellent video! I hope you will do one on optical computing. Going from 2-4GHz to 200,000-400,000 GHz optical frequencies would be great, but how does that work? Also, how does light work at very small sizes?
@user-ml2mg6vc1r
@user-ml2mg6vc1r 4 ай бұрын
I started getting addicted to your videos, thank you so much for the clear explanation.
@imnewtothistuff
@imnewtothistuff 4 ай бұрын
Wrong... There are no separate positive and negative charge particles,they do not exist. There is only charge and discharge.
@dosesandmimoses
@dosesandmimoses 4 ай бұрын
Probably a dumb question.. I’m learning so my apologies if it’s a bit ignorant.. but Is infinity an assumption? That’s a very specific term.. that’s why I ask. Is there proof of infinity? Thanks for your reply and patience with my question and/or ignorance.
@Ogoun-grandson
@Ogoun-grandson 4 ай бұрын
im real upset that i didnt get to learn this in high school. but at least im making up for lost time so thank you so much for making this video
@somerandomboi8239
@somerandomboi8239 4 ай бұрын
Wait do electrons accelerate as they advance down the wire? How come current (I) retains the same value along the circuit then? (or is that just in theory and in reality it would be slightly higher near the positive end? I mean objects have greater velocity as they get closer to the ground. I've never thought about electrons this way, please help lol.)
@tonypalmeri722
@tonypalmeri722 4 ай бұрын
THANK YOU! You're confirming several of the conclusions I had already come to (no help from standard E&M textbooks, or so many other physics videos).
@halfisher3598
@halfisher3598 4 ай бұрын
Wait, current doesn’t cause fields? Please don’t tell my model 3 that, i need it to get me to work! XD
@harleyquinn8202
@harleyquinn8202 5 ай бұрын
How do retarded potentials explain that electromagnetic waves can be blocked or reflected?
@cakemoss4664
@cakemoss4664 5 ай бұрын
I have heard in the past that the magnetic field is the relativistic correction to the electric field. Does this sound correct?
@AlexanderShamov
@AlexanderShamov 13 күн бұрын
In relativistic physics the electric field makes no sense on its own. For example, it can be zero in one coordinate system and nonzero in another. So the electric field strength is not an invariant quantity, but if you also add the magnetic component, it becomes invariant. This is similar to how the spatial coordinates and time don't make sense on their own, but acquire invariant geometric meaning when taken together, or how energy is not invariant on its own, but energy-momentum is.