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  • Celebrate Pi Day!

    03/14/2016 2:18:53 AM PDT · by Daffynition · 67 replies
    Chiff.com ^ | March 14, 2016 | staff reporter
    Happy Pi Day! No, not National Pie Day. That's January 23. On this day, geeks go wild at the mere thought of celebrating pi — the ratio of a circle’s circumference to its diameter. pi = 3.1415926535897932384626433832795 or 3.14 for short.
  • Taking the Tally of Curious Triangles

    09/30/2009 12:38:57 AM PDT · by neverdem · 4 replies · 569+ views
    ScienceNOW Daily News ^ | 23 September 2009 | Barry Cipra
    Enlarge ImageObviously. The area of this triangle is 13, a congruent number. Credit: L. Blizard/Science Quick! What do the numbers 5, 6, 7, 13, 14, 15, 20, 21, 22, and 23 have in common? If you said they're all "congruent" numbers--numbers related to the areas of certain triangles--then you may be one of those folks who scored an 800 on your math SAT. Even if that answer didn't leap to mind, you may be intrigued to know that mathematicians have now cataloged the congruent numbers--which are easy to define but not so easy to spot--up to a trillion. A...