switches

Two clocks. To be sure, to be sure?

1,55pm Carol - you missed the clocks in this one, have you still got sand in your ears from your holliers? Just looking at the oil lamp as a standby, you couldn't trust the electricity in those days, the ESB were forever going on strike!

Nick Stewart You can never have too many clocks!

Swordscookie Did not miss the clocks! Just wasn't finished the finely crafted description... :)

Thank you for sharing this great old shot.He looks happy in his work, i was one years old when this was taken.

These pictures are great. I am really happy that the Library of Congress is doing this.

Wonderful photo! Ditto, I am happy LC is doing this. I was 1 month old when this was taken, in Illinois to boot, and this scene brings back fond memories. The more railroad pictures you post, the better! Bravo and thank you.

What a fantastic serie of beautiful photos. Fantastic that the Library of Congress is doing this. -- Seen on your photo stream. (?)

This is a real treasure of the public domain. I think it is fantastic to make these available through Flickr, the best photo sharing site around. It is a shame they have not uploaded the full resolution images. The LOC's own site will often have 20MB scans of these photos. I've made some beautiful prints of New York's Penn Station from there.

Thomas, the link to the persistent URL in the description area will take you to a high-resolution version of the image. Good luck!

  6 Women Scientists Who Were Snubbed Due to Sexism —National Geographic Daily News, May 19, 2013 "Born in Liu Ho, China, in 1912, Chien-Shiung Wu overturned a law of physics and participated in the development of the atom bomb. "Wu was recruited to Columbia University in the 1940s as part of the Manhattan Project and conducted research on radiation detection and uranium enrichment. She stayed in the United States after the war and became known as one of the best experimental physicists of her time, said Nina Byers, a retired physics professor at the University of California, Los Angeles. "In the mid-1950s, two theoretical physicists, Tsung-Dao Lee and Chen Ning Yang, approached Wu to help disprove the law of parity. The law holds that in quantum mechanics, two physical systems—like atoms—that were mirror images would behave in identical ways. "Wu's experiments using cobalt-60, a radioactive form of the cobalt metal, upended this law, which had been accepted for 30 years. "This milestone in physics led to a 1957 Nobel Prize for Yang and Lee—but not for Wu, who was left out despite her critical role. 'People found [the Nobel decision] outrageous,' said Byers. "Pnina Abir-Am, a historian of science at Brandeis University, agreed, adding that ethnicity also played a role. "Wu died of a stroke in 1997 in New York."  

Thank you for link to this, Pixel Wrangler. I shared it with people who follow us on Facebook.

Congrats on Explore! ⭐ March 24, 2021

✨🌟★❤✯♥♡✨ Very beautiful ✨♡♥✯❤★🌟✨

You deserve the explore!