7:51am PDT - June 30th, 2021
RT @PhysInHistory: Physics Photo Of the Day: Dr. Willem de Sitter and Albert Einstein discussing equations that provide the best available…
0 retweets 319 likes - Linda Jones (@Jonesls)RT @PhysInHistory: Physics Photo Of the Day: Dr. Willem de Sitter and Albert Einstein discussing equations that provide the best available…
0 retweets 319 likes - Linda Jones (@Jonesls)