Or maybe he drove the ethanol leg uphill. Or upwind. Or on a day with a different ambient temperature. So many error bars to add to his numbers, I'm not convinced what he saw on a single trial would hold up in a proper controlled experiment.

Yes, ethanol doesn't have the same energy density as gasoline. But miles per gallon is not the correct comparison. Miles per dollar is what really matters. Or maybe miles per pound of CO2 released. Miles per gallon is a useless measure to compare disparate fuels (unless you really are range limited).

But large isn't the factor that matters - you can always change a secondary mirror to make the image as large or as small as you want. If by "fantastic light buckets" you mean they are very sensitive, that could be a reason.

Why are they using 600x600 CCDs? That's only 0.36 megapixels. Surely there are more advanced CCDs than that.

Half of a dialogue should be a monologue, not a halfalogue. Or, to avoid the conflict with the usual definition of monologue, maybe a unilogue?

Or, perhaps, "Hey Kool-aid!"

Looking at the map, it appears the rift would indeed connect the Red Sea to the Gulf of Aden via a second pathway, making (very approximately) an island out of half of Eritrea and all of Djbouti.

People are working on such things, like tapping the gulf stream: http://www.npr.org/templates/story/story.php?storyId=16713781 Usable ocean currents are a lot scarcer than usable wind, unfortunately.

> One tip: Use text instead of voice
Wait a minute, did I just hear the cellular providers admit that text uses less resources than voice? When is that insight going to make it to the pricing on my calling plan?