Speed of light

[rdavidjohnson63]

I happened across these videos and found Dr. Rebecca Smethurst, aka Dr. Becky, interesting to listen to and the history of how the speed of light was measured over the centuries very interesting.

Dr Becky Smethurst is an astrophysicist researching galaxies and supermassive black holes at Christ Church at the University of Oxford.

"How did we measure the fastest speed there is? | The History of the Speed of Light Part I"
https://www.youtube.com/watch?v=V7PU1WN9jWY

"Why can’t anything go faster than the speed of light? | The History of the Speed of Light Part II"
https://www.youtube.com/watch?v=jRLNVvsxfFo

[Frank Kenney]

Get a feel for the Speed of light;

http://joshworth.com/dev/pixelspace/pix ... ystem.html

First scroll to right, then start simulation by clicking on the "C" icon in the lower right.

[30salem]

thank you both for the links. I had just enough time to start Dr Becky's post and explore the Josh Worth website. Leaving more for another time. Both were fascinating.