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'4.74 Degrees Of Kevin Bacon' Just Doesn't Sound As Good As 6

Facebook and researchers from the University of Milan calculate that on average it takes 4.74 "hops" to connect one Facebook user to another. But how can you play "4.74 Degrees of Kevin Bacon?"
NPR

Automakers Set To Steer Customers To Hybrids

Some auto executives say customers may not be ready for hybrids yet, but now it's time for the car companies to lead them there. For companies to meet new rules that will nearly double average fuel economy by 2025, hybrids will have to play a much bigger role than they do now.
NPR

'Casually Pepper Spraying Cop' Meme Takes Off

A University of California Davis police officer is now the featured image in a growing number of ironic Web posts. Critics are commenting about the pepper-spraying of protesters with Web-based art.

NPR

Test Driving The Nissan Leaf

Robert Siegel test drives the Leaf, Nissan's electric plug-in vehicle, with Carlos Ghosn, chief executive officer of Nissan and Renault.
NPR

Using Battelle Technology And Don't Know It?

Battelle isn't exactly a household name but the Ohio nonprofit is responsible for everyday items like the Xerox copy, compact discs and even bar codes. Those are the inventions Battelle publicly takes credit for. There are countless others, but the Columbus-based organization stays under the radar because it develops these products for large corporations confidentially. This report is from the Midwest reporting project Changing Gears.
NPR

Timeline: The 100-Year History Of The Electric Car

The electric car was just as popular as its gasoline counterpart when it first went into production around the turn of the 20th century. But with the advent of highways, people wanted to go farther than their battery life allowed. Today's electric cars face similar challenges.
NPR

Can Electric Cars Help Automakers Reach 55 MPG?

Fuel-economy standards are set to double by 2025. Electric cars could help reach that goal, but consumers just aren't buying them on a large scale. Beloved by niche markets, the cars face similar challenges as when they first appeared over 100 years ago: a higher price than gas cars and concerns over battery life.

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