2 ms·
Random OT fact of the day: The man on the cover is wearing one of those mirrors on his forehead that you often see in older photos of doctors. Thanks to Googl
by my_first_acct 9y ago
Random OT fact of the day:
The man on the cover is wearing one of those mirrors on his forehead that you often see in older photos of doctors. Thanks to Google and Wikipedia, I can now report what it is called ("head mirror") and what it was used for (to provide illumination for ear, nose, and throat exams). [1]
[1] https://en.wikipedia.org/wiki/Head_mirror https://en.wikipedia.org/wiki/Head_mirror