- Sea otters hold each other's paws while sleeping so they don't drift apart.
- To make a zipper slide up and down more smoothly, rub a bar of soap over the teeth.
Stradanus, Johannes Stradanus, Jan van der Straet or Giovanni Stradano was a Flemish artist active mainly in 16th-century Florence, Italy. He was a wide-ranging talent who worked as an easel and fresco painter, designer of tapestries, draughtsman, designer of prints and pottery decorator. His subject range was varied and included history subjects, mythological scenes, allegories, landscapes, genre scenes, portraits, architectural scenes and animals. After training in his native Flanders, he left his home country and ultimately settled down in Florence, Italy. He became a prominent court artist to the Medici during the second half of the 16th century and worked on the many decorative projects of the court. Stradanus also produced large altarpieces for the most important churches in Florence.
He was a prolific designer of prints which were circulated widely throughout Europe for many centuries. Through his knowledge of Florentine and Italian art and his international contacts with engravers and editors in Antwerp, Stradanus contributed to the development of printmaking.
William B. Green was an American trade union leader. Green is best remembered as the president of the American Federation of Labor from 1924 to 1952. He was a strong supporter for labor-management co-operation and was on the frontline for wage and benefit protections and industrial unionism legislation.
As president of the AFL, he continued the development of the federation away from the foundations of "pure and simple unionism" to a more politically active "social reform unionism."
The scuttling of the German fleet took place at the Royal Navy's base at Scapa Flow, in the Orkney Islands of Scotland, shortly after the First World War. The High Seas Fleet was interned there under the terms of the Armistice whilst negotiations took place over the fate of the ships. Fearing that all of the ships would be seized and divided amongst the Allies, Admiral Ludwig von Reuter decided to scuttle the fleet.
The scuttling was carried out on 21 June 1919. Intervening British guard ships were able to beach a number of the ships, but 52 of the 74 interned vessels sank. Many of the wrecks were salvaged over the next two decades and were towed away for scrapping. Those that remain are popular diving sites. The ships are the world's primary source of low-background steel.