I love working in an office full of geeks. Just before lunch, Byrne was trying to answer on twitter why the sky was blue and white.

Everyone within earshot was interested and joined in the argument. Diagrams were made, searches were conducted and spent the next 5 minutes taking Byrne's challenge of trying to answer in the 140 character limit on Twitter.

@byrnereese The sky is blue because molecules in the air scatter blue light around, while more of the, longer wavelength, reds get through.

Success! 140 characters, including the "@byrnereese" bit. Then Byrne pointed out the question was "why is the sky blue and white?", not just blue. D'oh!