Tesla taps sun for free electric car fuel (Update)

Tesla on Tuesday opened the first part of what it said would be a large network of stations that will provide free charges to its electric cars courtesy of the sun.

Why retire later? Study shows how to encourage longer careers

(Phys.org)—What if every U.S. worker got an automatic 10 percent pay raise at age 55? According to a new University of Michigan study, most people would work quite a bit longer to enjoy the extra income before they retired.

How Apple's phantom taxes hide billions in profit

On Tuesday, Apple is set to report financial results for the second quarter. Analysts are expecting net income of $9.8 billion. But whatever figure Apple reports won't reflect its true profit, because the company hides some ...

Middle class better off than previously thought

Long portrayed as stagnant, the income growth of the U.S. middle class may be more than 10 times greater than previously suggested by some economists, according to a new study at Cornell.

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