› added 2 months ago

5

TIL that scientists just discovered a safer alternative contrast agent to the toxic and radioactive uranyl acetate for staining biological samples in electron microscopy: coffee

Read more sciencedirect.com

via reddit.com

pDnG TIL Jimmy Carter pardoned all Vietnam draft dodgers almost immediately after taking office
mxjBx TIL of Typhoid Mary. Mary was a cook in New York City in the early 1900s.An asymptomatic carrier of typhoid, she infected 20 people, causing one death. After years of isolation, she went back to cooking, causing another major outbreak and two more deaths. She spent the rest of her life in isolation.
J1Ly8 TIL I found out that SEGA's name comes from SErvice GAmes.
l7gOV TIL about Null Island, the location at zero degrees latitude and zero degrees longitude (0°N 0°E), i.e. where the prime meridian and the equator intersect. Since there is no landmass located at these coordinates, it is not an actual island.
4XJPN TIL Instagram racked up $20 billion in ad revenue in 2019, handily eclipsing YouTube's $15.1 billion -- yes, the most popular video site on the planet wasn't as lucrative as a photo-focused social network.