Lorentz Transformations | Special Relativity Ch. 3

The previous videos in this series:

This video is chapter 3 in my series on special relativity, and it covers boosts, galilean transformations, newtonian relativity, and of course Lorentz transformations, the constancy of the speed of light, relative changes of velocity between inertial reference frames, etc - some of the stuff Einstein figured out. I introduce the mechanical minkowski diagram, aka mechanical Lorentz transformation, aka spacetime globe.

MinutePhysics is on twitter - @minutephysics

Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!

Created by Henry Reich

[bluebrown]

So good! The animations were well-chosen and super helpful, and the motivation for each successive step feels so natural, despite the fact that you built up to a famously unintuitive idea.

[cheshre_cat]

"Assume the cat moves at a third of the speed of light" that is one speedy little kitten

[SteveMould]

Such a great video! Thanks for making it! The visualisations are really helpful to understanding and you are great a breaking down explanations into perfectly sized steps.

[divyajyoti]

You explained the idea of Special Theory of Relativity so easily that I wish you were one my profs teaching me in college. I had to read so many books and visualize so much to understand the intuitive ideas of relativity, wish I had got this video in the 2nd year of my college... terrific job dude...

[franklippert]

So Henry is not just abusing cats like Schrödinger did, he's mistreating sheeps as well.

[Holobrine]

Major sudden realization: The speed of light is the eigenvector of the Lorentz transformation!

[ThePrimevalVoid]

This has been one of the best explanations of Lorentz transformations I have ever seen. I want you to know that.

[semiawesomatic]

E=mC^2 where the C represents the constant velocity of cats in a vacuum?

[eshafto]

Oh! So the 'c' stands for cat!

[ModernGameChangers]

I went through much of grad school for my PhD in physics. I was always bad at relativity but it didn't matter because it wasn't part of my field. I ended my grad school with a masters and went into the private sector to work, and this is the first explanation of Lorentz transforms that has ever made sense to me. I need to go revisit my old books now.

[SciencewithKatie]

I thought my sound wasn't working at the start - and then I had my ears blown off 5 seconds in after trying to turn up the volume 🙈🙉

[void]

I'm a physics and math instructor. Any way I could get my hands on one of these Time Globes?

[VoteScientist]

Yes, visualization first then the equations. I've never been able to create the visual intuition from the Lorentz transformations myself. This video helps a lot. I hope you look closer and slower at these transformations.

[gunnadahun]

this video series is absolutely amazing. Very well done. I've learned more in the past 20 mins than the last 3 weeks in class

[OH]

That was beautiful, really showing how the speed of light is an eigenvector in these diagrams

[RodrigoCastroAngelo]

me: pauses the video to read the small remarks
youtube: places the navigation bar and play/pause controls over the text, without any way to dismiss them

[jadeeye]

gotta love a good squeeze rotaiony thingies

[verena]

Watching and understanding the physics and the fast physical English in these videos is kinda a challenge for me since I'm only 16 and English is not my mother tongue. But I do really enjoy watching your videos, bc they do not only help me to better understand Physics but also to improve my English! And I actually understand what you are teaching us here! Thank you for that!

[adiramrakhani]

I'm 12 and I understand- thank you so much. English isn't even my 1st language

[trevorx]

I had no idea that the Youtube community is so connected, that 3blue1brown knows minutephysics knows Mark Rober knows Mr Beast and etc. It's really cool to think about!