You can see that things gradually become more terrifying : Five of the six alkali metals and their reactions to air and water. Learn more at the Periodic Table Of Videos. Lithium, Sodium, Potassium, Rubidium, Cesium (Caesium), and the elusive Francium.
posted by The Whelk on Nov 18, 2009 - 29 comments

Scientists discover fossilized claw of enormous ancient sea scorpion. They estimate this thing was 2.5 meters long. Sorry about the nightmares. [via]
posted by flotson on Nov 21, 2007 - 49 comments

Awesome science tattoos.
posted by GuyZero on Aug 8, 2007 - 50 comments

Dr. James B. Calvert, professor emeritus of engineering at the University of Denver, has an incredibly rich and deep personal webpage, which includes such gems as Latin for mountain men, the correct corn-hog ratio, travel by brachistochrone, anomalous sound propagation and the guns of Barisal, and about a billion other awesomely nerdy topics.
posted by sergeant sandwich on Jan 28, 2007 - 16 comments

"There are few world firsts nowadays, but it may be one." - A quote used to describe triplets born to a woman with two wombs. Double uterus is an uncommon condition that is often undetected until a woman becomes pregnant. The outcome for such pregnancies is usually good, though posing a higher risk for breech positioning. The odds of triplets (twins in one womb, one fetus in the other) are 25 million to one.
posted by grapefruitmoon on Dec 21, 2006 - 29 comments