One of the ugly secrets of the renewable-energy industry is that its products make no economic sense unless they are highly subsidized.

Most visions of extraterrestrial life are actually steeped in human hubris. The fictional extraterrestrials of 'Star Trek' or a hundred other space operas are less alien than many of my neighbors. And funny, the ones running the place are mostly WASPish men.

If you had a really good - battery, it wouldn't matter that the sun goes down at night and the wind stops blowing sometimes. But at the moment, battery technology is nowhere near good enough to use at utility scale.

For relatively modest amounts of sulfur dioxide injected into the atmosphere, you could easily cool Earth by 1% or more, if you want.

Technological 'revolutions' don't really overthrow anything - they simply append a new and dynamic market to that which went before.

The physics of water is central to cooking, because food is mostly water. All steak that you cook is actually boiled on the inside.

If your kitchen smells good, your food lost something.