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512 Paths to the White House - Interactive Feature. 22 Things You're Doing Wrong. Dedicated to the smallest members of your family. A site exclusively about small animals such as Rabbits, Guinea Pigs, Chinchillas, Hamsters, Gerbils, Hedgehogs, Ferrets, and more!

Weekend Feature: Human Genome Reveals Entire Span of Species. Stored inside your genome are clues to the history of humankind, including global migrations and population crashes, according to researchers who have analyzed DNA pioneer, Craig Venter's publicly published DNA sequence, and those of 6 others, to reveal major milestones in human history.

Weekend Feature: Human Genome Reveals Entire Span of Species

The analysis suggests that descendants of the first humans to leave Africa shrunk to as few as 1,000 reproductively active individuals before rebounding. The study also suggests that, contrary to popular theories, these early humans continued to breed with sub-Saharan Africans until as recently as 20,000 years ago. Genetic researchers have traditionally compared DNA sequences from populations around the world to determine how populations relate to one another and when they might have branched off. "Each little piece of the genome has its own unique bit of history and goes to a unique ancestor as you go further and further back," explained John Novembre, a population geneticist at UCLA.

How to Map Time: A Visual History of the Timeline - Maria Popova - Entertainment. A journey through man's attempts at visualizing time itself I was recently asked to select my all-time favorite books for the lovely Ideal Bookshelf project by The Paris Review's Thessaly la Force.

How to Map Time: A Visual History of the Timeline - Maria Popova - Entertainment

Despite the near-impossible task of shrinking my boundless bibliophilia to a modest list of dozen or so titles, I was eventually able to do it, and the selection included Cartographies of Time: A History of the Timeline by Daniel Rosenberg and Anthony Grafton. Among both my 7 favorite books on maps and my 7 favorite books on time, this lavish collection of illustrated timelines traces the history of graphic representations of time in Europe and the United States from 1450 to the present, featuring everything from medieval manuscripts to websites to a chronological board game developed by Mark Twain.

The first chapter, "Time in Print," provides some context for the images: The Morning News has a wonderful slideshow of images from the book this week. The Histomap by John Sparks,1931. Creative Uses for Dryer Sheets.

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Watch This Insane Japan earthquakes 2011 Visualization map. 2011年の世界の地震 分布図 World earthquakes 2011 Visualization map (2012-01-01) Unsolved Problems. There are many unsolved problems in mathematics. Some prominent outstanding unsolved problems (as well as some which are not necessarily so well known) include 1. The Goldbach conjecture. 2. The Riemann hypothesis. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. Such that , where is the totient function. 14. 15. 16. The Clay Mathematics Institute ( of Cambridge, Massachusetts (CMI) has named seven "Millennium Prize Problems," selected by focusing on important classic questions in mathematics that have resisted solution over the years. In 1900, David Hilbert proposed a list of 23 outstanding problems in mathematics (Hilbert's problems), a number of which have now been solved, but some of which remain open.

Wacky Physics: Why Do Particles Have Flavors? 10 Awesome Online Classes You Can Take For Free. Cool, but you need iTunes for nearly everything, and that gets an 'F.'

10 Awesome Online Classes You Can Take For Free

Are there really no other places to get these lessons? I was sure there are some on Academic Earth. Flagged 1. 7 of them are available via YouTube. 21 Reasons why English Sucks. How to Learn a Language in 10 Days.