that is quite an interesting picture

in the paper today: a picture of what would happen if you put all the water on the earth and air in the atmosphere in one sphere above the earth (pdf of the original page). almost unbelievably small!!

update: the pdf is only availiable if you are a subscriber to the archive, which puts you back 60 bucks a year. nonetheless i leave the link, maybe you are a subscriber….

update 2: the linked page has some quite interesting pictures!