Spacetime Diagrams: An Easy Way to Visualize Special Relativity (Physics by Parth G)

ive watched a few videos and this is by far the best explanation

Amazing thank you so much

Super, thanks

Thank you so much for this video! It was really helpful

You explain brilliantly!!!!😊

What does is mean ct? instead of one second it will be c seconds? why it helps?
Strange that you just mention it like its obvious.

Lol why doesnt anyone in school explain it this way..

Nice illustration! Now if we can get people to see that there is little to no gravity to slow down light between galaxies until the light enters into a galaxy where time slows down and distance contracts, slowing down the speed of light. This is the reason superluminal motion is perceived to be seven times the speed of light since our measures of time and distance are being projected into outer space where time runs faster and the measure of distance is much larger relative to ours. Of course nothing ever exceeds the speed of light. It’s that the assumed measures of time and distance are off.

Another little secret of general relativity is that the speed of light is NOT constant because the measures of time and distance are not constant throughout the universe. Looking at a galaxy is not like looking at a cat or dog where the measures of time and distance are constant because they are not constant from here to outer space between galaxies. The measures of time and distance appear to be constant or flat to us locally but they are not flat over great distances, especially outside of galaxies and in between galaxies.

Very good explanation

If the equation for kinetic energy is k=(.5m)*(v^2), how is it possible for a massless proton to posess any kinetic energy since the equation would have a solution of K=0 with a mass input of zero. Does that mean a proton does have mass, just the lowest amount of mass observable with our current technology...which would mean it's possible for a hypothetically lighter particle at the quantum scale to exceed the speed of light (such as whatever ultramicroscopic particles that could be responsible for the apparently FTL properties observed in quantum entanglement experiments

loved this!

Can you please draw 4D spacetime diagram rather than 2D. How can 4D spacetime exist if it can't even be drawn on paper.

Brilliant

So clear and helpful. Thanks so much.

ct is m/s * s = m. c is NO „scaling factor“ for time. If c = 1 as a dimensionless number than c is a scaling factor for m. So m = m.

An excellent video! Now I see some things I've been trying to understand for years. Thanks, Parth.

Not bad but took a longer than necessary to explain. FOS described in the reverse of usual. Non simultaneity seen by resting observer in own frame was shown as simultaneity as seen by an observer in relative motion. True but clumsier.

Bhaai bahut sahi video banaai hai! Zabardast!

Great !!! thank you soo much 😊😊

I have recently become obsessed with trying to understand both of the theories of relativity. I have consumed a ton of content online and read a few books on the subject (including Einstein's actual paper). I think this video does an excellent job explaining special relativity.

Very clear... but I cannot quite grasp why physicists want/need to turn the TIME axis into a DISTANCE axis ( by multiplying c by t). It sort of misses the point a bit, does it not?

Thank you so much!

Hi Parth, I've just finished reading "The Ascent of Gravity" and have started "Why does E=mc2?" Chapter 4 is on spacetime and although the author does break it down to a very simple level, I still could not grasp the message or purpose of The Minkowski diagrams the author used. From watching your video it makes a lot more sense so thank you very much (although i've much reading and research left to do to even begin to understand, fully)

Excellent video, keep up the great work

This is the best explanation I've seen

Thank You Parth for the excellent short explanation ! Super Useful !

What a descriptive and concise explanation of spacetime Minkowski diagrams. I've read and seen alot of videos on same topic but this is probably the best I've seen 👏👏👏

Thanks!! This was such a great explanation of the concept!

if spacetime diagrams had the time axis being the horizontal axis, they would be a lot more intuitive, at least for me. Time does not go up, time goes forward.

Beautifully explained. I used this to help me understand a section on Black Holes i am reading and it crystallised the concept for me. Thanks!

I appreciate quality content like this

This video is the best explanation i’ve ever heard about future light cone 🎉🎉🎉.

Thank you for making this!

This is the video that made me really understand causality and light cones. Thank you!

This is the best explanation of light cones I have come across on the Internet. The videos I watched earlier, were not quite clear in explanation but thanks to Parth G, I now understand this concept very well. Liked and subbed!

Does this mean that in the reference frame of a speed of light particle, every event happens at the same time (at the world line origin)? Even if an outside observer sees different events happening to it at different times and in a particular order, none of that is actually experienced by the particle? What does the event order mean, if anything, to the particle then?

Good luck

Really enjoyed video... yes more like this please :-)

I hope you complete and post the podcast you mentioned following on from your first excellent podcast on Spacetime diagrams … great work

something i wasnt told at school...

2 physics students learned from this

Parth where is the part 2

Thank you so much for explaining the Minkowski space! And yes I will be checking out your Ch. 2 on Special Relativity!

Thanks a lot for this explanation.
Proud to be a physics student and your subscriber..🙏
I had only seen the space time diagram, now almost all of my doubts regarding this particular topic is clear. Want to watch video on how gravity is just the wrapping of space time. Just want to visualise on my mind the curvature of space-time as gravity graphically.

Hello! Can you do the same video but withought CT? And put just T for time, so that we can see how it looks like withought multiplying t with c?
Or can you link to us a video where spacetime is x and t rather than x and ct?

Thanks!