Wolfram Alpha

A Pretty Cool Reference/Search Engine


This isn't like google or yahoo search - this is a search for "systematic knowledge". Here are some Examples

Dates/Times
Easter 1910, 20 million years ago

Math
pi to 1000 digits, Factor a Polynomial

Music
C major 7th chord
E blues phrygian (scale)

And Here's a fascinating one...
10 peanut M&Ms