Why Protons Can't Travel Faster Than This Speed

The special theory of relativity tells us that nothing can cross the speed of light. Sadly for protons the limit is slightly lower than the speed of light.

Big thanks belong to people supporting me on Patreon, Buymeacoffee and Super Thanks for giving me the motivation to create the video namely
- Glen Northrop (Patreon)
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-Nathan Myers (Patreon)
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Riccardo Jasso (Patreon)
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-Compuart (Patreon)
-Eric Zetterbaum (Patreon)
-Matthew O'Connor (Patreon)
-Chris (newly bought 5 coffees)
-mplichta (newly bought 2 coffees)
-Glen Northrop (newly bought coffee)
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-Mauro Di Lalla (superthanks)
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Since I am kinda busy I can't answer more elaborate questions in the comments but for this purpose, I created a possibility to ask questions for a small fee of 5 dollars on

attributions:
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stock videos:

[narfwhals]

First I thought you made a typo and this video would be about why massless particles must travel at c. I had never heard about this GZK limit. Thanks for this new info!

[twixerclawford]

It's very rare that I come across a video talking about something I have literally never heard of before by any of the thousands of physics videos I've watched over the years. Excellent!

[lastchance]

First timer here. Really appreciate that the topic is not "dumbed down" like so many other sci-sites. Showing the math makes all the difference! Suscribed...thank you.

[dialectphilosophy]

What a fun and interesting dip into relativistic particle physics! Great job making the video so accessible… we predict rapid channel growth heading your way!

[michelmeijer]

Thank you for building up such a topic with a historic reference frame. It makes the topic so much better to understand and to enjoy. Also, switching between you talking and animations was well balanced, adding to the lecture. I'd like more of this!

[robertl]

I'll petiton my local council to raise the speed limit.
You can thank me now.

[dargi_amorim]

I have studied this effect in the uni a few years ago but totally forgot about it. Thank you for refreshing my memory hahaha. Nice video :)

[TazPessle]

New sub here. I love the pace, gives me enough time to actually understand what's being said before you move on.

[GottaMineGottaCraft]

Ohhhh, subscribed! Walking through the math is incredibly useful. "There's a frame of reference where the CMB is stationary" is a concept I've never considered, thanks for blowing my mind like that

[fubu]

Imagine being a proton traveling at 0.99..9998c and watching photons travelling past you at c :)

[kyzercube]

This is one of those things that is staring you right in the face the whole time and is so simple, but it just never dawned on you ( at least that's how it is in my own point of view 🤣). Very informative and simplistic video!

[seanmcdonough]

I love the accent! Rodiation! And Aye-ons! Just subscribed!

[rtg_onefourtwoeightfiveseven]

Great video, everything was well-explained with just the right amount of detail. Subscribed.

[thetinkerist]

I've not heard this explanation yet. Thanks! very interesting.

[donpeat]

Excellent, and good to see some numbers around interactions with a hotter CMB in the direction of travel for very fast particles. Thanks!

[howtoappearincompletely]

That was very interesting. I'd never heard of Δ resonances before. Thank you.

[marcelma]

Very interesting subject - and well presented! Still, you offered enough to get my mouth watery, but not enough to develop a satisfactory understanding. I'd like to hear a little more detail about the interaction between the proton and the microwave background.

[pallharaldsson]

Good video though the number slightly wrong in the beginning, i.e incorrectly rounded, rather truncated, see it more accurate at 10:01 then there also 21 nines then ending in 866.

[rubetz]

A very interesting effect, and a surprisingly simple one. Thanks for the video, I actually learned something new today.

[SCUBAelement-Intl]

Wonderful vid, excellent visualizations, you rock!!