Wolfram Alpha - Computational Knowledge Engine

Here's a totally new way of searching the net- not a web site to be found. Instead you will gain answers to questions that need some sort of calculation: algebraic formulas, GDP, population, weather, nutritional content of food.... Here's an article about it as well as a short (12 minutes) introductory video as well as the site homepage.   ... so what was the weather like in the city on the day you were born?