PHOTONS do not experience TIME.
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- Опубликовано: 31 май 2024
- In this video we are talking about three different phenomena , which shows us the weird effects of time. First , since photons travels at the speed of light they do not experience time. Thus spin of photons never flips. Second , Neutrinos were first predicted to be massless. But we have observed neutrino oscillations , since neutrinos can't oscillate without experiencing time , they can't be massless. As massless particles cannot experience time.
Third , when cosmic ray hit our atmosphere they create lots of muons , but given the average lifetime of these muons they shouldn't reach the surface , yet they do because these muons are moving very fast so time runs slower for them and they reach the surface.
time stamps :
00:00 Introduction
00:58 Photons do not experience time
02:01 neutrinos do experience time , therefore...
03:08 effects of time dilation on muons
links :
My Blog : thespace-timestuff.blogspot.com/
Thanks For watching.
Written , Presented and Edited by :
PRIYANSH
amazing work. you explained parts of standard model in such simple language! keep up the work.
Thanks, I'm happy that you found the video informative.
Great video! You summarized special relativity very succinctly by explaining that EVERYTHING moves through space-time at the speed of light -- and the faster you go through space, the slower you go through time!
Thank you.
Great video mate! Keep up the good work!
Thanks , I will.
Like you work bro❤️
Keep gathering knowledge.
Love from Bangladesh..
Do research on quantum gravity
Thankyou
Nice
Thanks
Science is the only path to the truth. Keep it up bro!
Whenever you talk about dimensions it is about solid liquid gas etc state change. For light it cannot change state. Apleys constant is about 1.2. Anything above can change state.
Just as "acceleration" defined as "m/s2" is just a human "(linguistically instructed, sensory-experiential simulator [a.k.a. "imagination"] constructed) conceptual abstraction" in the absence of a particulate "mass" object (PMO) to be "accelerated", so too "time" -- and more specifically "the experience of time" -- is just a human "conceptual abstraction" in the absence of the sequential (i.e. "time extended") impingement upon the eye of the "observer"-PMO of a ("spatially extended") series of -- i.e. _MORE THAN ONE_ -- (I'll just call them) 'photonic waves', thereby resulting in the "temporally-evolving standing waveform" we "experience" as our "sensory awareness of the material universe".
My question is do photons experience time when they are not moving the vacuum speed of light, say for instance through glass or water. because of the interactions with the electrons in that medium, light's wavelength experiences interference and takes on a different wavelength that either the electrons or lights wavelength
Hello!. Well , any individual photon always travels at the speed of light. It's the beam of light that slows down in a medium. So I guess it still won't experience time.
I Just Came Up With This Concept Today In My Mind And Now I See Your Video. How Crazy Is That?
Well , that's really nice.
It's gotta' be extremely boring for a photon of light not experiencing time, if it takes a circumnavignational journey around the edge of the visible universe, that for reference would take about 300 years - but only if it was travelling at around one billion times the speed of light that it is capable of doing. In other words, the universe has come and gone many times while it attempted it's valiant little 'timeless' journey.
The speed of light is really extremely slow when compared to the vastness of the universe. However , how can something feel "bored" if it's not experiencing "time"?
This implies that a photon is emitted, travels while experiencing no time, and is absorbed and "dies". So photons do not actually exist.
but are photons particles? I though they were just energy packets, perturbations in the space-time fabric, like grabbing a rope and rippling it up and down, it makes moving waves, but the waves aren't really independent of the rope. Light isn't independent of space time, it's just energy moving in discrete bundles from one place to another, and that movement has an upper limit of speed. that's why they have no spin...they aren't really particles of anything
@Terry South
first of all , photons do have spin. It can be +1 or -1. And yes , light is just composed of discrete bundles of energy called photons. Which is the particle of light in the sense that it is the smallest unit of light energy. For example when an electron absorbs a photon it has to absorb the entire photon. There is no half a photon. If light would have been a wave you don't expect this to happen. And photons are not waves , their properties(such as position or momentum) are described by waves(wave function).
@@priyanshnamdeo thank you!
There are two main types of fundamental subatomic particles: fermions, which take up space, ie, matter particles; and bosons or force carrying particles which do not take up space. Photons are a type of boson, and they mediate the electromagnetic force.
@@danielrosell3779 a force carrying particle that takes up no space is really difficult for me to understand. I think they need better words than particles, which implies something physical and tangible
@@terrysouth7201 welcome to the non-intuitive world of quantum physics!
We can ignore string theory forever 😂
Time is better understood as repetition. A photon of red light 650 nm lambda has 300,000,000 x 1000,000,000 ÷ 650 repetitions in one time second.
It is obvious that a photon does not experience time. Put another way, a photon experiences the entire lifetime of the universe in an instant. To see this, all you have to do is work the time dilation equation iteratively, bring an object's velocity closer and closer to the speed of light.
oscillates with em selfs*
Not so. Time isn't an 'experience'. There is no 'velocity' in time. Nothing 'moves' through time. "Move' is a spatial reference. Time is not a spatial dimension...Space is!!. Time is the dimension of change. You change through time, not travel.
Time merely references change.
Motion is an example of change (change of spatial position). If photons experience motion, they experience change. That change is calibrated by the dimension Time.
I have looked and cannot find the video "Time is not what you think it is." I can't continue with this until I've seen that. I can't give you a like for an unavailable reference. Gotta move on,
I changed the title later , I suppose this was the video I was referring to -
ruclips.net/video/lRP6qj3M3_4/видео.html
Sorry for the inconvenience!
@@priyanshnamdeo Thank you so very much.
2.05 "hypothetical graviton". Graviton is for people who still believe in Newton. People who believe in Einstein rather think of bending of spacetime which causes the illusion of gravity.
Gravitons : hypothetical. Bended Spacetime : Proven Fact.
Graviton is not for newton's gravity. It is are for quantum mechanics. In quantum mechanics every force is transmitted by particles. Therefore to come up with a quantum theory of gravity we would need a particle to mediate gravity. Which was called graviton. But yes it is hypothetical so it might be the case that they don't exist.
@@priyanshnamdeo thanks for replying. i really like your channel and your explanations.
I mean, Newton views gravity as a force and thus like any force there should be a force particle, the hypothetical graviton.
Einstein says bollocks there is no gravitational force the apple just seems to fall its an optical illusion of the real phenomenom of bending spacetime. so, gravitational force is bogus so logically there also is no need for some mysterious hypothetical extreme rare particle.
the whole idea of gravitational force totally falls out of place and logic with all the real forces.. :-)
i always find it odd (and telling) that quantum mechanics insists on gravity as a force, and not as avresult of Einsteins bending spacetime.
General relativity is truly elegant. But we know that it isn't or can't be the complete framework. It breaks down at extremely small length scales. For those regimes and to manifest the effects of quantum mechanics we really need quantum gravity. General relativity is inherently classical. Yes , it is a great and has been proven correct in dozens of ways. But still it can't be the whole picture.
@@priyanshnamdeo well, we are not talking about the "whole picture" but only about "gravity". General relativity explained gravity and its explanation solved some gravitational mysteries, like the orbit of mercury which couldnt be explained with "gravitational force" but was finally explained wth bending of spacetime. If gravity is a force, there shou.d be a force particle, despite intense searching it hasnt been found. Besides that, gravity has always been viewed as an oddity amongst the other forces. maybe thats because gravity isnt a force? its rather unscientific to base an assumption despite there is zero evidence. to continue to "assume" there must be a "hypothetical graviton" its based on a non scientific fallacy. The only proof there is, is, there is no gravitational force. no evidence no clues. its like Flatearth theory.
@@priyanshnamdeo If, in quantum mechanics, every force is transmitted by particles, what particle transmits magnetic force?
I cannot experience this video due to the pajeet voice and accent.