November 21, 2012 Like many other brick-and-mortar retailers, Wal-Mart is trying new strategies to serve customers whenever they want to buy. In one new experiment in four select markets, the retail giant is promising to deliver eligible items ordered online in just a few hours.
November 20, 2012 A pilot program in Mississippi uses biometric finger scanners on low-income parents who check their kids in and out of day care centers. State officials say they'll save millions of dollars by reducing fraud, but some parents and day care providers see it as discriminatory and are protesting.
November 19, 2012 Scientists have come up with an algorithm to guess how many stars a recipe will receive online. By building "social networks" for ingredients, the algorithms also reveal how we mix and match spices, make dishes more healthful and customize flavor profiles.
November 19, 2012 The Pentagon's research agency, DARPA, played key roles in developing the Internet and GPS. Now it's investing money in high school hackerspaces, where students gather to come up with high-tech ideas — like a bicycle that generates electricity.
November 18, 2012 Electric automaker Tesla's new Model S has received a lot of praise from the automotive press for breaking the stigma on electric cars. The challenge for the young, Silicon Valley company is to see if it can get non-car enthusiasts to get behind the wheel.
November 16, 2012 Privacy groups and tech companies have been pushing for more protection for emails and other online personal information for years. They hope the FBI investigation into Gen. David Petraeus' email correspondence with Paula Broadwell will give their efforts new momentum.