drag coefficients are just part of the story. You have to then multiply them by their frontal area to get the real drag. It's a useful number, but the size of hole a car has to punch through the air still matters. Just like coefficient of friction needs a contact surface area. » 4/17/14 8:53am Thursday 8:53am

Really? That's the comment? A low paid cog in a soul sucking bureaucratic job is pulling a silly face while probably mulling her coworker's suggestion of where to buy lunch at the airport while wasting some ink scribbling on a boarding pass, and your insight touches on: » 4/11/14 2:44pm 4/11/14 2:44pm

Calgary is an interesting look at this. A young North American city in a boom, with few if any geological borders to sprawl, but a very concentrated downtown with very, very expensive parking-$400 a month. Parking elsewhere around the city is almost always free and widely available, and the city spreads 1 million… » 4/03/14 6:51pm 4/03/14 6:51pm