Dr. Ingle presented the ZOOM meeting on Friday, August 14, 2020.
Scintillating Geometry, Math, and Calculus.
The first interesting problem was the string girdle earth calculation, then add ten feet to the string, and calculate the gap.
Then, the pi relationship of perimeter of polygons to 2R of circle inside.
If He lost you in the calculations, perhaps a video of Rockwell's Retroencabulator will cause your brain to explode.