Having a lunar crater, as well as a Martian crater, named for him, William Rutter Dawes, (born March 19, 1799, London—died Feb. 15, 1868, Haddenham, Buckinghamshire, Eng.) was a highly accomplished astronomer. I remember in Physics class at UTC using a mathematical formula developed by an astronomer/mathematician that accorded the ability to calculate maximum resolution from telescopes and microscopes, dependent on their aperture. Coupled with parallax, the apparent shift in the position of an object when viewed from different angles, telescopic distances can be calculated. Little did I know that mathematician was William Rutter Dawes.
https://www.britannica.com/biography/William-Rutter-Dawes
Also, little did I know parallax would be an integral aspect of radiographic image evaluations, particularly in determining buccal and lingual (or palatal) roots, e.g., maxillary first premolar. Taking a radiographic exposure with different angles, one from the mesial and one from the distal, and noting the shift of the object on the radiographs allows determination of the lingual (or palatal) canal, VS buccal.
Relating to telescopic resolution, there is the Dawes Limit Calculator just for that.
Years prior to learning of such a mathematical formula, as a 5th grader at Schofield Barracks, I had a Daw Calculator.
My mother.
One day, I was yammering about the Googol concept that my third grade teacher, Mr. Ige, had discussed, envisioned by that forward-thinking 9 year old kid. That's when my mother's eyes lit up. She promptly invited me to sit at that center of operations in most homes, the dinner table.
Yes, Martha, where she had previously shown me how to properly address an envelope...
Now proficient in division, my remarkable mother showed me how to do something none of my classmates could do:
Determine the square root of any number - before the calculator was introduced nearly a decade later. That Banty Rooster was flexing...