At the Smithsonian, the reason they give for the retirement of the SR-71 was that the USAF was paying for the plane and its maintenance, but the Navy was primarily using its reconnaissance data since its primary mission was watching Soviet shipyards. They speculated that if it was funded from general the general DoD… » 9/17/14 11:34am Wednesday 11:34am

About 6 years ago, I worked on a college project to embed wireless sensors in a roadbed. The first goal was for measuring concrete curing so the road could be opened sooner, since you would know the temperature*time factor exactly, but we discussed the potential of a system which harvested energy from its environment… » 9/16/14 12:32pm Tuesday 12:32pm

If you allow exceptions, then the rule doesn't matter much. Either you give exceptions to drivers considered to be rare talents, or you don't. Being a rare talent is going to be a judgment call no matter what, otherwise they'd just be written into the rules. » 9/12/14 11:10am 9/12/14 11:10am

Yup, and just like we already have automatic cruise control that matches the speed of traffic ahead, it's an enhancement of the capabilities we already have for the times we want less input on driving: the boring parts. Autopilot is just another name for what used to be called super-cruise, automatic speed adjustment… » 9/10/14 1:15pm 9/10/14 1:15pm

I'm not sure that's the case everywhere. Looking at DC, you see tons of management and business types taking the Metro. Of course, a bit north in Baltimore and even I don't want to take the Light Rail far because it has a bad vibe to it. » 9/09/14 12:09pm 9/09/14 12:09pm