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- เผยแพร่เมื่อ 5 ส.ค. 2024
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The experiment which tried to prove the existence of a mysterious medium for light called ether but failed at it. It instead proved that light does not need a medium to travel.
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This is one of the few videos where I have seen the math written out. This helps a lot to understand how the experiment works. Nice work!
im still trying to find out how they got the mirrors less than 3 micrometers difference in length from the center mirror. does anyone know?
Türkkk
You deserve millions of subscribers for the way you explain everything so simply.
One of the best explanations of the Michelsen Morley experiment. Very clear and lucid. Thank you.
actually they detected movement between 1 and 10 km/s, but it wasn't 30 km/s which they expect so that's why it was concluded as a failure.
To raczej był wynik błędu. Z drugiej strony ich eksperyment w najmniejszym stopniu nie dowodzi, że światło nie przemieszcza się w tzw. Etherze. Ja jestem na 100% przekonany, że tak jest, bo niby dlaczego dla światła miała obowiązywać nagle inna fizyka. Wynik ich doświadczenia jest logiczny i nie mógł być inny. Wynika po prostu ze skrócenia wymiarów w kierunku ruchu i nikt nie wie w jakiej naprawdę odległości mierzonej w strukturze przestrzeni są zwierciadła oddalone od siebie. Elektron w atomie musi być w tej samej odległości czasowej od jądra - Siły są w atomie przenoszone przez fotony. Wystarczy prosta matematyka i można sobie policzyć o ile wolniej będzie zachodzić komunikacja w atomie (dylatacha czasu) i o ile wolniej będzie to w kierunku ruchu niż poprzecznie. Żeby zachowała została ta sama odległość czasowa, atom w ruchu robi się eliptyczny ( skrócenie wymiaru w kierunku ruchu)
Hi, I'm not sure that is the only conclusion that can be made from this experiment, a null effect could result from matter been affected by the direction of the ether too, if matter arises from the ether then elongations in matter will be relative to the elongations in light waves. This would also then point to matter or more accurately particles maybe being standing wave points.
What an amazing demonstration! Thanks a lot for such a great work 😍
one of the best explanation videos I have watched so far. good job
Your videos helped me and many more like me in understanding such a difficult topic. Keep doing the great work. Best of luck👍
One of the best explanation of michelson-morley exp I ever witnessed.!
Was searching this type of video... just awesome work
I add some aether info as follows.
(1) Google Demjanov's twin media (air & carbondisulphide) MMX done in Obninsk on 22 June 1970 which showed an aetherwind of 140 km/s min & 480 km/s max during a day (this was the horizontal projection of the background aetherwind which is approx 500 km/s south to north blowing approx 15 deg off Earth's spin-axis). This genius 1st order MMX was 1000 times as sensitive & accurate as the oldendays 2nd order MMXs.
(2) The MMXs were never null.
(3) The correct calibration needed to allow for length contraction caused by the aetherwind.
(4) The correct calibration needed to allow for the Fresnel Drag of light by the air. Prof Reg Cahill explains.
(5) All MMX's suffer a linear ever-growing fringe-shift that gets larger with each rotation. All MMXs that employ vertical fringes will detect this signal. This includes laser MMXs. Horizontal fringes do not suffer from this effect. Because at least one mirror has to be turned a little (horizontally) to give the desired fringes then this results in a difference in a beam's horizontal radius from the axis of rotation. Mirrors approaching the axis in effect eat waves/fringes, & mirrors going away from the axis in effect vomit waves/fringes, the eating equaling the vomiting, but in Michelson's & Miller's MMXs the non-symmetry of the beams resulted in non-equal eating/vomiting, resulting in a signal that was periodic in a full turn. The desired sought-for MMX signal (fringe shift) being periodic in a half turn. University MMXs will detect this signal if the MMX is rotated lots of times, because this signal is ever-growing, 100 rotations will give 100 times the signal that is gotten from 1 rotation. Stopping or slowing the rotation has no effect on this signal, ie it doesnt reduce this signal, the size of the signal depends only on the number of rotations, it is ever-growing. Michelson & Miller deducted this signal from their raw readings, to do so they assumed that it was linear, which it is, or, it should be, but their MMX was top-heavy & suffered from a changing lean (it floated in a mercury filled trough), plus their MMX had a sloppy pin (ie axis of rotation), hence their LEGFS was not always very linear (but that is another interesting story in its own right).
(6) Secondly the Michelson Morley MMX, & the Morley Miller MMXs, suffered a spurious signal that was periodic in a full turn. This was because their mirrors were at two levels, hence some of their light beams had to angle up & later down. This then introduced a spurious signal (fringe shift) due to angle contraction of the mirrors in their apparatus, which changed the effective lengths of the angled beams. I call such angle contraction Esclangon angle contraction, as Esclangon is i think the first person to bring it to the attention of science (but he didn't mention that it must also happen in an MMX). EAC is due to Lorentzian Length Contraction of solids (which should be called FitzGerald LC as FitzGerald was the first to predict it) which is due to any change in the aetherwind blowing throo a solid (which changes the size/shape of solids)(because solids are held together by electric forces)(these forces being affected by the wind).
Best content in TH-cam for the explanation of Michelson Morley experiment
Well done 👍 sir
Sir you explained this PERFECTLY. THANK YOU FOR THIS!!
Phenomenal video and explanation. I am blown away, thank you so much for your help
Thank you for making this video !👌
Thank you for this awesome video .❤
Amazing! Thank you so much for this video😍
Thank you for the meaningful knowledge. I love your video. Very clear and easy to understand!
One of the best explanation videos.Awesome work..thanks😘
Understood clearly one of the best animation with Excellent explanation thank u keep uploading
Simply the best of the best. I wish you'd upload more experiments
What an incredible video.
So simple and so effective
Thanks a lot .. This video helped me very much to understand the concepts better.
Ohh thank you so much for this …. This was much needed 😍
th-cam.com/video/BCo7DyemdrE/w-d-xo.html
Please create more videos like this....thanks for creating it ...excellent tutorial 🤗
Best explanation of Michelson-Morley experiment on TH-cam. thank you.
Very Clear and easy to understand. Thanks!
Excellent tutorial, the best explanation I saw, thanks
So, the conclusion is on assumption of the heliocentric, if in geocentric model, it should've no problem. I tried to look on the galelio and Ptolemy.. something doesn't feel right.
Those aren't the only options. Research Simon Shack's Tychos model of the solar system.
in the calculation of t in vertical wave, shouldn't the velocity with which light covers d' distance be taken as sqrt(c^2+v^2)?
Thank you so much....for making this video🙂.....concepts are crystal clear now😇
I loved it. Explained so simply..
What about considering that the earth isn’t moving and is actually stationary as a conclusion to this experiment?
That’s not an option because it would imply that the universe rotates around the earth and looks to much like God exists. Science can’t have that! Lol
Won't the 45-degree orientation of the mirror affect the distance in time calculaton for wave?
Superb explanation. Thank You Sir!
Thank you, you helped me a lot understanding these experiments!
Thanks a lot! Which software do you use to make it?
Perfect video! First time understanding this concept
I have to say , u guys made it so easy to understand, GJ!
This is probably one of the best video I've ever seen
This experiment proved the earth isn't moving!
"If the Michelson-Morley experiment had not brought us into serious embarrassment, no one would have regarded the relativity theory as a (halfway) redemption."
-Albrecht Fölsing (1998). Albert Einstein: A Biography
"The two sentences, 'the sun is at rest and the Earth moves', or 'the sun moves and the Earth is at rest', would simply mean two different conventions concerning two different Coordinate Systems. Could we build a real relativistic physics valid in all Coordinate Systems; a physics in which there would be no place for absolute, but only for relative, motion? This is indeed possible!"
-Albert Einstein(1938). The Evolution of Physics (1966 ed.). New York: Simon & Schuster. p. 212.
"...The Tychonic(geocentric) system is, in fact, precisely equivalent mathematically to Copernicus'(heliocentric) system."
-Kuhn, Thomas S. , The Copernican Revolution (Harvard University Press, 1957). (p. 202)
No, this experiment proved that there is no medium like ether and light doesn't need any medium to travel
Earth is moving
Best explanation of MM experiment. Thank you very very much 😊
First video i found in which explaination is that much easy.... Thankyou
The best way to explain Michelson- Morley experiment is this...
thank you❣️ for this video
th-cam.com/video/BCo7DyemdrE/w-d-xo.html
Very good explanation. Thank you.
Greatly explained ! Thanks !
Crisp and Clear expounding. Well done
how can the blue beam reflect at an angle when it comes back?
Probably the best video for its explaination 👌
Most of my Delhi IIT friends recommend me to watch this video and now I can say that are now one of my most trustworthy friends. Superb video✌️✌️
This kind of animation video help us a lots for understanding....thanks for making such video
you are a life saver man pls make some more videos
Isn't the mirror 2 placed at a right angle?so why the reflected beam is shown in a little tilted way?
I have no words to thank you....
great and clear. thank you very much
Definitely is not the only conclusion we can make out of this .
Please help me, I just cant understand why the horizintal ray of light (parallel to the ether) is slower that the vertical one. Is it because it hits the half reflective mirror slightly earlier (due to its direction of travel changing slightly) or something that I am not seeing here?
Thank you in advance!!!
No, you’re confusion is actually the result of realizing that the speed of light cannot be constant if one light beam hits the reflector earlier than the other one. You weren’t the first person to notice this. Others criticized Einstein when he introduced his Special Relativity:
“The principle of relativity accounts for the negative result of the experiment of Michelson and Morley but without an ether how do we account for the interference phenomena, which made that experiment possible?“
Source: William F. Magie, “The Primary Concepts of Physics,” Science, vol. XXXV, Feb. 23, 1912, cited in Loyd S. Swenson, Jr., The Ethereal Ether, 1972, p. 177.
Congratulations-you have just discovered that this experiment only works BECAUSE the ether exists and that someone has been blowing smoke up your ass. That’s really the answer to why you are so confused. Let me explain.
You see the experiment was considered a “failure” but NOT because it didn’t detect the ether. It DID detect it. It detected a 0.02 fringe on the photogenic plate. That’s not the issue. The issue is that it didn’t detect the 0.4 fringe they were hoping to find:
“The experiments on relative motion of earth and ether have been completed and the result is decidedly negative. The expected deviation of the interference fringes from the zero should have been 0.40 of a fringe - the maximum displacement was ⭐️0.02⭐️ and the average much less than 0.01 - and then not in the right place. As displacement is proportional to squares of the relative velocities it follows that if the ether does slip past [the Earth] the relative velocity is less than one sixth of the Earth’s velocity.”
(Source: Letter dated August 17, 1887, from the Rayleigh Archives, cited in Dorothy M. Livingston, The Master of Light: A Biography of Albert A. Michelson, 1973, p. 130.)
You see Michelson is calling it a “negative result” not because the ether was detected…no…he’s calling it a null result because the revolution of the earth around the Sun was not detected! To show that the earth revolves around the Sun, you need to have a 0.40 fringe on the reflector plate.
No why would it be the case that you could only detect a .02 fringe when you need to detect a 0.4 fringe? 🤔
Captain Obvious says:
Because the earth isn’t moving around the sun.
Does that help?
So now you’re getting the big reason behind Special and General Relativity. It’s all a shell game to hide the fact that what Michelson-Morley had discovered was that the Earth is not revolving around the Sun-it is the Sun that is revolving around the earth. Which means that the earth is at the center of the known universe. I kid you not.
Are 1/2 reflecting mirror and polarisers same kind??
How can u ascertain that the ether is moving wihout proof, and then use that ascension to do the MM experiment? What if the ether is not moving at all? That shld make the speed of light constant in all directions of measurement
Why can't the aether be stationary??(without moving) . Why are we considering there is some velocity for the aether?
how could the waves combine together again if they hit different parts of the mirror on the return ?
Excellent explanation!
Awesomely explained Sir, Thanks for such a wonderful video. I had a question though, if the central mirror is half reflective, then when the reflected light from two mirrors (at 90 degrees) falls on it, half of it should combine and fall on the detector and other half should reflect back, is this understanding correct? Though this observation should not make any difference to the result of the experiment.
Best explanation of Michealson Morley exp . Ur so underated
my teachers 60min lecture = this guy's 5min video .
hats off sir.....
Whats the wavelength of light used in the experiment?
One of the best video on this topic...
What about if we live in a closed stationary sistem?
Thank you so much
Awesome explaination sir. Thanks a lot .
Thanks for the explanation!
This is a great video!
Got scared when you said to wait for 6 months xD.
Amazing video though, specially the part at 3:00
The best explanation video of the michelons morley experiment
Ayuta...This is classic especially 03:04 to 03:20...Couldn't find this bit on any "top Relativity or MM experiment" videos on TH-cam or the entire Internet.
What do you mean by "not show an interference pattern"?
Extraordinary explanation 👌
Fantastic video !
What are the characteristics of the Aether? Is it Only for the propagation of light?
Best best best explanation ever
I will surely share this with my friends
when is the next video coming out ???
Ooooh finally I understood it, thanks!!
awesome bro!!
So it means both horizontal and vertical waves took same time to reach detector and has no interference pattern....
Thanks for showing the math! Regards from Baltimore.
What if.. ether is a medium that doesn't move at all? Resulting in no extra velocity or resistance. Like sound through solid? But unlike, ether is not affected by heat either.
But ether is considered to be stationery how it can flow in a particular direction??
🙏🙏🙏 im reallyy so thankful
Can someone explain me, why they didn't think that along the ether wind direction, the light beam slows down and then accelerates again after reflection, thus not showing interference?
I have the same question.
There WAS interference.
The ether was positively detected in the form of a 0.02 fringe on the photogenic plate in the experiment:
“The experiments on relative motion of earth and ether have been completed and the result is decidedly negative. The expected deviation of the interference fringes from the zero should have been 0.40 of a fringe - the maximum displacement was ⭐️0.02⭐️and the average much less than 0.01 - and then not in the right place. As displacement is proportional to squares of the relative velocities it follows that if the ether does slip past [the Earth] the relative velocity is less than one sixth of the Earth’s velocity.”
(Source: Letter dated August 17, 1887, from the Rayleigh Archives, cited in Dorothy M. Livingston, The Master of Light: A Biography of Albert A. Michelson, 1973, p. 130.)
Hey this should then mean that light is nor matter nor energy but it is electromagnetic radiation isn't it. I am confused
Great video!
Thank u so much...😘😘😘😘
Very good! Thanks!
What about the dual slit experiments.... if you measure or observer it it is supposed to behave like a particle thus no interference pattern anf if you dont observe it it will shoe interference.....
Isnt this relevant to light too... the behavior of quantum paricles ?
What a video it cleared all my doubts.
At first i thought what is he going to explain in just 5 min , but man...
Watching the video was worth it
Why should ether move?? Why does this conclude that ethere doesn't exist when we don't even know what to expect (because at best it is defined as a thing or imagination)? Am I missing anything here??
How you make it
Wow.....Really appreciable....
nice video man