Physicists and astronomers honored on US postage stamps - Update!

Continuing the theme of my last post, let me call back a post from 2021, where I blogged about physicists and astronomers depicted on US postage stamps.  Back then I counted about a dozen such, and I conjectured about possible future honorees.  Top of my list among the latter was Nikola Tesla.  Well, this was an oversight on my part, as Tesla was indeed depicted on a 20 cent stamp in the American Inventors series, issued in 1983.  Also depicted on the same stamp is his induction motor.

I am grateful to this list for helping me identify Tesla's stamp. The list has a number of notable foreign stamps as well, but it is incomplete.  For example, according to the National Institute of Standards and Technology, American Nobel laureates in physics, David Wineland and Daniel Schechtman (both affiliated with NIST), are depicted on foreign postage stamps.

 

Physicists honored on US currency and coinage - Update!

Back in 2022, I blogged about physicists depicted on US currency and coinage; at the time I could only identify two (Ben Franklin and Dr. Sally Ride). Further I stated that I knew of no other scientists, engineers, or mathematicians so depicted, unless we count the polymathic Thomas Jefferson.

I am pleased to see that this year (2025), the American Women Quarters series has added a quarter for Dr. Vera Rubin, a central figure in the discovery of the "dark matter" problem.  This now makes a total of 3 physicists, one male on currency, and two female on coinage.  It is noted that Dr. Ride is the first known LGBT+ person, and Dr. Rubin the first Jewish person, depicted on US money.

Regarding engineers, I should have mentioned in my earlier post that President Herbert Hoover ($1 coin issued in 2014) was a mining engineer.  President Jimmy Carter was also an engineer by training (nuclear engineer in the Navy), but no coin for him has yet been issued.  He is presently the only deceased president for whom a $1 coin has not yet been issued).

Am I missing any others?