Is there an immense ocean, far beneath the surface of the Earth, that replenishes the oceans above? Recent news items describe a deep reservoir containing as much as three-quarters of the Earth’s water supply. Most of these news stories are careful to note that this isn’t some great sloshing underground …
Second posting in a three-part series (see previous post) Recent news stories have familiarized us with military drones bearing names like Predator and Reaper. Popular television shows feature tiny spy drones, conjuring images of CIA black ops. You could be forgiven for assuming that drones are a new and pernicious …
(Reprinted from Flying Lessons: verbal-aviation.blogspot.com) My year off is officially over. I’m still at home, but I’m actively looking for work. Maybe that will be a job in the conventional sense of the word, or maybe it will be a more creative way to bring in income. I’m not sure. …
Back to the science metaphors today. I got to thinking about how radically I have emptied out my schedule this year, and how it’s helping me pay attention to things too long ignored. Improving the signal-to-noise ratio, as it were. Right after grad school, I spent three years as a …
