Why hasn't commercial air travel gotten any faster since the 1960s? (2009)(engineering.mit.edu)119 points by sorentwo 1 year ago | 517 comments
Screenshot pending…Why does traffic bottleneck on freeways for no apparent reason?(engineering.mit.edu)9 points by fzliu 2 years ago | 8 comments
What's the difference between a motor and an engine? (2013)(engineering.mit.edu)103 points by wizardforhire 2 years ago | 117 comments
