- #1

Sparky_

- 227

- 5

Hello,

Just for fun - I am trying to go through The Feynman’s Lectures: Lecture #26 – Volume 1: The Principle Of Least Time. I am stuck on Figure 26-4 and specifically showing the two angles with the “double arcs” are equal. The angle of reflection BCN’ and XCF.

Maybe I am just that rusty on my geometry – I have going through several pages of scribbles trying to show those two angles are equal with no luck.

Help??

Should a take a picture and attach it to this thread or ?? How can I present the figure?

Thanks

Sparky_

Just for fun - I am trying to go through The Feynman’s Lectures: Lecture #26 – Volume 1: The Principle Of Least Time. I am stuck on Figure 26-4 and specifically showing the two angles with the “double arcs” are equal. The angle of reflection BCN’ and XCF.

Maybe I am just that rusty on my geometry – I have going through several pages of scribbles trying to show those two angles are equal with no luck.

Help??

Should a take a picture and attach it to this thread or ?? How can I present the figure?

Thanks

Sparky_