The Amtrak Derailment And Newton's First Law

Walter Siegmund via wikimedia | ://bit.ly/1HjxEbL Tuesday evening's deadly derailment that sent an Amtrak Northeast Regional train careening off its tracks has many people asking how such a tragedy could happen. Investigators on the case have not announced an official cause just yet, but it seems that speed played a major factor: the train was, apparently, traveling down the track at 106 mph, more than 50 mph over the posted speed limit on the bend where the train derailed, according to Nation...