A chance encounter with University of California San Diego professor of history Mark Hanna, author of Pirate Nests and the Rise of the British Empire, 1570-1740, leads to a discussion of how the saying “arrr!” came to be associated with...
How do double rainbows form? Scientists at University of California San Diego have explained that extra-large droplets, known as burgeroids because of their burger-like shape, have the effect of creating a double rainbow. Burgeroids, all the way...