In this video, Professor Walter Lewin vividly demonstrates the electroscope experiment, showcasing its ability to detect electric charges. He explains how a charged object, when brought near or touched to the electroscope, causes the metal leaves to repel due to like charges. Through his engaging explanation, Professor Lewin highlights the principles of electrostatics, including charge induction and conduction, making complex concepts accessible and fascinating. Follow @spacecameocommunity for m

12M views · 154K reactions | We have an important message to share from the Sacramento History Museum. This was typeset in 30 point Caslon and letterpress printed in purple rubber base ink. This was printed using a 3x5 Kelsey Excelsior tabletop printing press. #typography #caslon #oddlysatisfying #purple #sachistorymuseum #museum #printing #letterpress #sacramento | Sacramento History Museum | Facebook

967K views · 21K reactions | Why were so many incestuous royal marriages allowed by the Church? #history #historywithamy #Habsburgs #historylovers #historyfacts #historytime | History with Amy | Facebook

72K views · 561 reactions | "The story of women in Congress begins with Jeannette Rankin..." Sunday, on American Artifacts, a two-part program on the history of women in the U.S. House of Representatives, beginning with the election of Jeannette Rankin in 1917 & covering stories of women such as Margaret Chase Smith, Clare Boothe Luce, and Shirley Chisholm. Watch starting at 6pm ET on C-SPAN 3. | American History TV | Facebook