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Posts tagged digits

October 6, 2011

 

The number 86 in tile format in a subway station in New Yorl City

Number Magic

Here's a number puzzle that's bound to make your friends think you are either a mind reader or a magician.

July 6, 2009

 

Pile of credit cards

Internet Security and Prime Numbers

Ever wonder how websites like Amazon.com keep your personal information, like credit card numbers, safe from the internet bad guys? Well, here's the scoop.

March 30, 2009

 

Baby elephant with mother

The Origin of Fingers and Toes

Before about 360 million years ago, no vertebrates had limbs. They all shared the same fish-like body shape. But around that time something exciting happened.

December 14, 2005

 

ulam spiral

The Largest Prime Number

The largest prime number so far discovered is 7,816,230 digits long!

September 27, 2003

 

Dither

Time once more for the Moment of Science word of the Day. Today's word is dither.

September 27, 2003

 

Counting on Your Fingers

The Greenlandic word for the number seven translates as, “second hand, two.” That means you count five on the first hand and add two from the second, to make seven. After you run out of fingers, go for the toes. Thirteen translates as “first foot, three.” That means you add all ten fingers plus three toes.

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