"Peggy LeMone, senior scientist at the National Center
for Atmospheric Research in Boulder, Colorado, calculated
the weight of a cloud. 'The water in [a little cumulus cloud]
weighs about 550 tons," she calculates. While she compared
the number to the weight of elephants, I prefer to bask in
the knowledge that no matter how ungainly and heavy I may
seem, I am lighter than the clouds." -- redaxe,
referring to
this.