I was looking at the archived version [0], and I had a question.
Regarding their PCB design (visible on the bottom of the page, with additional details here [1], could someone explain why the optic part is separated from the rest of the board by a long, wavy connection?
(I am trying to learn more about PCB design ideas and principles.)
The probably won't be relevant to most people here, but one book that changed how I approach my work (as a physician) was "Sapira's Art & Science of Bedside Diagnosis". It goes beyond the basics of physical diagnosis and delves into the history and statistics of various physical diagnostic techniques. It even describes a few low-tech techniques and skills which have been forgotten in the US medical system because of high-tech (and more expensive) imaging or lab testing regimens.
Incidentally, I found this book referenced in this article: "Why Should Doctors Read Medical Books?" by Dr. Eric Cassell [0]
https://en.wikipedia.org/wiki/Ultrafinitism
https://en.wikipedia.org/wiki/Actualism