Viva Frei @thevivafrei
Another fun fact: There's enough mercury in that container to make 5 elephant rectal thermometers. https://t.co/5s9OGphPsj — PolitiTweet.org
Wonder of Science @wonderofscience
Mercury is so dense an iron anvil floats in it. Credit: Cody'sLab https://t.co/XJR7H48elV