What if

Un blog incroyable d’un type qui pourrait répondre à n’importe quoi preuves scientifiques à l’appui. Bref une délectation scientifique à consommer sans modération!

http://what-if.xkcd.com/

Petits exemples de questions tirés de son blog:

If you had a printed version of the whole of (say, the English) Wikipedia, how many printers would you need in order to keep up with the changes made to the live version?

Ou alors:

If you wanted to anchor an airplane into the ground so it wouldn’t be able to take off, what would the rope have to be made out of?

Allez hop je le mets dans mes liens.