Electromagnetic fields. Be forewarned, this involves science...


BBC Documentary.

Very interesting.

https://www.dailymotion.com/video/xv709t
perkri

Showing 1 response by erik_squires

If something measures the same but doesn't sound the same it means your measurements are still stuck in the middle of the 20th century.

If you can hear it there should be a way to devise a measurement for it but that does not mean every measurement has been devised.

We give the handful of measurements we use in the popular press which have been around for decades as the limits of science and engineering.  That this is all that can be done but it isn't.