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      Graveyard Coyote

      August 29th, 2008 by mike d. in Quickthoughts

      Ben and Katrina were strolling through the Mt. Auburn Cemetery the other day when Katrina noticed something moving.
      It was a Huge Coyote! Check out the picture here.

      Ben and Katrina were strolling through the Mt. Auburn Cemetery the other day when Katrina noticed something moving.

      It was a Huge Coyote! Check out the picture here.

      Authored by: mike d.

      Mersenne Prime Number

      August 29th, 2008 by mike d. in Geekdom, Features

      mprime.PNG

      I just learned of a little math fact today. A Mersenne number is a number that is one less than a power of two. (*see source 1)

      2^n - 1

      Examples:
      1, 3, 7, 15, 31, 63, etc.

      A prime number is a number that is only divisible by itself and the number one.

      Examples:
      2, 3, 5, 7, 11, 13, 17… etc

      By putting these two bad boys together we get the Mersenne Prime. A number that is one less than a power of two that is ALSO a prime number.

      Examples:
      1, 3, 7, 31, 127, 8191, etc.

      These Mersenne numbers are very tricky to figure out. In fact, there are only 44 that have ever been discovered; the largest having over 9.8 million digits in the number (2^32,582,657 - 1). One cool thing about Mersenne Primes is that always is the case where two must be raised to the power of a prime number. That makes hunting Mersenne Primes a heck of a lot easier though still way too hard for Windows Calculator. Also cool is that the 44th Mersenne number is currently the largest prime number known. (*see source 2)

      Anyway, the exciting news of the day is that the 45th Mersenne Prime number may have been discovered!!! Hot Diggidy! Get out your party pants!! If the number confirms in September we should have a Prime Party. This one will most certainly be more than 10 million digits long which means that the GIMPS folks may win the Electronic Frontier Foundation’s prize of $100,000. And if you’re feeling ambitious, try and grab the next prime number in the list to win $150,000 or $200,000!!!! (*see source 3)

      A couple sources:
      1. The fast, the easy, the wikipedia
      2. GIMPS - with lots of history and fun facts.
      3. The Electronic Frontier Organization

      Authored by: mike d.

      Mythbusters

      August 29th, 2008 by mike d. in Quickthoughts

      The Mythbusters paint a pixelated* Mona Lisa in 80 milliseconds with 1,100 paint balls, 1,100 paint ball barrels, and a lot of pressurized air.
      Video
      *for lack of a better word

      The Mythbusters paint a pixelated* Mona Lisa in 80 milliseconds with 1,100 paint balls, 1,100 paint ball barrels, and a lot of pressurized air.

      Video

      *for lack of a better word

      Authored by: mike d.

      Guess the Animals.

      August 29th, 2008 by mike d. in KungFu

      I’m learning a new form at Kung Fu: the Five Animal form.

      Throughout the form, we Kung Fu-ists imitate five different animals in the midst of our flurry of attacks. Your job… is to guess which animals we imitate. I was going to give you a list of animals to choose from, but I think it’d be far more entertaining to just let you have at it.

      Good luck. (also: don’t cheat)

      Authored by: mike d.
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