Wolfram Alpha

Discovered a new essential tool - key for any adventurer - Wolfram Alpha, just have a look it does everything, http://www.wolframalpha.com/.

In summary: Wolfram|Alpha is the first step in an ambitious, long-term project to make all systematic knowledge immediately computable by anyone. You enter your question or calculation, and Wolfram|Alpha uses its built-in algorithms and growing collection of data to compute the answer. Based on a new kind of knowledge-based computing - this is the sort of stuff Blog Quixote things is brilliant.