Congrats mattrom and thanks buddy.
Oh dear, I'm a geek - I couldn't watch clips 1 or 3, but found 2 fascinating - I wish I had seen that when I was doing A level physics!
Thank you, Buddy, for the challenge, your choice, and my prizes. I thought it was a good word choice.
Hope to see you all next week for a Diwali / New Moon challenge. (which may not have anything to do with either of those)