This is absolutely trivial if you learned even the tiniest bit of special relativity, and yet hearing it yesterday (from an old lecture by Feynman) unexpectedly resonated in my mind.

It was like:

"If you remain sitting in a chair, you are maximising your movement into the future.
If you start running, you are slowing down your movement into the future, by diverting some of the same motion into one spatial dimension".

Powerful!

#physics #science #relativity

Students at #SNOLAB are starting to engage in our common orientation for research experiences. One particle that comes up really early is the #muon. Students often don't learn about subatomic particle properties other than #electrons, #protons, and #neutrons until late in university. I made this video explicitly to help early-career students get familiar with the muon and see how it was the first direct test of the #relativity of time:

https://media.cooleysekula.net/w/fcZ9GLoMy4V3NdGSv2iW8h

#physics

This is absolutely trivial if you learned even the tiniest bit of special relativity, and yet hearing it yesterday (from an old lecture by Feynman) unexpectedly resonated in my mind.

It was like:

"If you remain sitting in a chair, you are maximising your movement into the future.
If you start running, you are slowing down your movement into the future, by diverting some of the same motion into one spatial dimension".

Powerful!

#physics #science #relativity