Transportation

Julia Sneden writes: We are not so much proud of our ancestors as we are just grateful to them, for being tough enough and stubborn enough to have picked up and moved when they needed or simply wanted to do so. Crossing the Atlantic (or any other ocean) in a tiny little wooden ship must have taken huge amounts of courage, and once here, huge amounts of energy and brain power to keep from starving to death. more »

Hongjie Dai and colleagues have developed a cheap, emissions-free device that uses a 1.5-volt battery to split water into hydrogen and oxygen. The hydrogen gas could be used to power fuel cells in zero-emissions vehicles."Using nickel and iron, which are cheap materials, we were able to make the electrocatalysts active enough to split water at room temperature with a single 1.5-volt battery," says Dai. By Mark Shwartz Stanford… more »

An event data recorder (EDR) is an electronic sensor installed in a motor vehicle that records certain technical information about a vehicle’s operational performance for a few seconds immediately prior to and during a crash. Although over 90% of all new cars and light trucks sold in the United States are equipped with them, the National Highway Traffic Safety Administration (NHTSA) is proposing that all new light vehicles have EDRs installed in the future. more »

Since 2007, there have been four major airline mergers. Baggage and reservation change fees collected by US airlines increased from about $1.4 billion in 2007 to $6 billion in 2012. Unlike prior recoveries when airline capacity growth undermined the ability to charge profitable fares, airlines since 2009 have restrained capacity growth even though demand for air travel has risen with the economic recovery. more »