The description of Bernoulli's is pretty much correct, but I don't think the Suez has a whole lot of current. It's a canal, not a river. What contributes significantly to this collision is that each vessel, having the screws at the rear, winds up pumping vast quantities of water out from under the ship. Large… » 9/30/14 10:19am Yesterday 10:19am

That's one long prop shaft. One very long prop shaft. Why do I mention this? Look up the formula for critical speed and note that if you double the length of the shaft, the critical speed drops by a factor of eight. Also, external loads (a bounce on take-off) can dramatically, if momentarily, imbalance a long… » 9/25/14 9:19pm Thursday 9:19pm

Since when does "global" correlate to a few city squares? All you need to stop this is a city ordinance requiring such performers (and I use that term VERY loosely) carry written permission from the copyright or trademark holder - no documentation, no right to receive "donations." » 9/25/14 10:18am 9/25/14 10:18am

Hmm... since when are police dashcams set up in portrait mode? Has there suddenly become a need for more "off camera" space? Maybe we'll soon see super long focal lengths for the extra reduction in field of view... maybe a small prism to put the center of view somewhere well over the vehicle being followed? We can… » 9/25/14 10:12am 9/25/14 10:12am