Wolfram Alpha has been available since May 2009 though I didn’t quite know how great it was till I really started fooling around with it trying to get answers to currency conversions, percentages etc etc etc.
So what is wolfram alpha all about, is it another search engine?
No. It’s a computational knowledge engine: it generates output by doing computations from its own internal knowledge base, instead of searching the web and returning links.
What can I do with Wolfram|Alpha?
This is the result when I typed in Singapore to Perth
Input interpretation: Centre of Singapore to Perth, Western Australia
Distance : 2424 Miles
Direct Travel Times : Aircraft (550 mph) 4.4hours
Sound : 191 Minutes
Light in fiber : 18.2ms
Light in vacuum: 13ms
Then a map was shown with a red line drawn depicting the path.