Comment Re:Non-human intelligences (Score 1) 785
If dolphins really want to get special treatment, they need to figure out how to do something for us.
Does patrolling our harbors for terrorists, spies, and underwater mines count?
If dolphins really want to get special treatment, they need to figure out how to do something for us.
Does patrolling our harbors for terrorists, spies, and underwater mines count?
The number you are quoting is the solar constant, as measured by satellite.
The number the grandparent is quoting is the average atmospheric insolation over all of Earth for a calendar year. I found a nice calculator provided by NASA that generates "a numerical table of monthly latitude insolation at top-of-atmosphere for a given calendar year" that backs up his provided average of ~342 W/m^2 -- see the bottom right.
figuring out the best way to fill a rectangle with circles
I don't know about best, but I think Mandelbrot has already figured out the prettiest.
One study after another cites the previous study, and almost no one knows where that 42 billion dollar figure came from, but it's impressive, so everyone continues to quote it.
Ars did an article on attempting to trace one such oft-quoted figure of losses, and slashdot discussed it. This $42 billion figure is probably from the same source.
tl;dr: big-dollar piracy numbers probably come from some unsubstantiated source from 1993 or earlier.
"Oh my! An `inflammatory attitude' in alt.flame? Never heard of such a thing..." -- Allen Gwinn, allen@sulaco.Sigma.COM