For nearly all of human history, most people were very, very poor. But something happened after 1800. Average wages began to rise. For example, in the past 200 years, the average wage in the United States... continue reading

posted by Trancecoach 1 decade 6 months ago • 999 views • 3:19

When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable "trophic cascade" occurred. What is a trophic cascade and how exactly... continue reading

posted by eric3579 1 decade 8 months 2 weeks ago • 4,780 views • 4:34

YouTube Description: In which John Green teaches you about the United States as it was in the 1990s. You'll remember from last week that the old-school Republican George H.W. Bush had lost the 1992 presidential... continue reading

posted by PlayhousePals 1 decade 9 months 1 week ago • 247 views • 15:38

YouTube Description: Sport Relief and the Sainsbury's Sport Relief Games: http://goo.gl/UAKUr2 Sport Relief interactive video: [See YouTube Description] Ruis Martins animation: [See YouTube Description] ... continue reading

posted by Janine V. (Lilithia) 1 decade 9 months 3 weeks ago • 269 views • 10:22

YouTube Description: A weekly show hosted by John Green, where knowledge junkies get their fix of trivia-tastic information. This week, John discusses 50 surprisingly illegal activities such as throwing... continue reading

posted by Zifnab 1 decade 1 year 6 months 3 weeks ago • 471 views • 6:48

FOR SCIENCE !

posted by BoneRemake 1 decade 2 years 10 months 2 weeks ago • 983 views • 7:08

Since it is Labor Day in a good part of the world, here is a video about the incidents at Haymarket Square following the call for workers to strike on May 1st. It picks up on May 3rd. The events would... continue reading

posted by RFlagg 1 decade 3 years 6 months ago • 1,238 views • 5:15