Scientists say they have put together a record of global temperatures dating back to the end of the last ice age, about 11,000 years ago. This historical artwork of the last ice age was made by Swiss geologist and naturalist Oswald Heer.
There's plenty of evidence that the climate has warmed up over the past century, and climate scientists know this has happened throughout the history of the planet. But they want to know more about how this warming is different.
Now a research team says it has some new answers. It has put together a record of global temperatures going back to the end of the last ice age — about 11,000 years ago — when mammoths and saber-tooth cats roamed the planet. The study confirms that what we're seeing now is unprecedented.
The educational division of the media conglomerate News Corp., called Amplify, unveiled a new digital tablet this week at the SXSW tech conference in Austin, Texas, intended to serve millions of schoolchildren and their teachers across the country.
Amplify promises the tablet will simplify administrative chores for teachers, enable shy children to participate more readily in discussions, and allow students to complete coursework at their own pace while drawing upon carefully selected online research resources.
Rising consumer demand for local foods has changed the job description for ranchers like Doniga Markegard.
Markegard, co-owner of Markegard Family Grass-Fed in San Gregorio, Calif., loves working with cattle, but she's not fond of the hours of phone calls and emails it can take to sell directly to a customer.
When the streaming video service Netflix decided to begin producing its own TV content, it chose House of Cards as its first big project. Based on a BBC series, the show stars Kevin Spacey and is directed by David Fincher, and it has quickly become the most watched series ever on Netflix.
There's a kind of rice growing in some test plots in the Philippines that's unlike any rice ever seen before. It's yellow. Its backers call it "golden rice." It's been genetically modified so that it contains beta-carotene, the source of vitamin A.
Scientists say that understanding how the cocktail party effect works could help people who have trouble deciphering sounds in a noisy environment. Guests make it look easy at a Dolce and Gabbana Lounge party in London in 2010.
Scientists are beginning to understand how people tune in to a single voice in a crowded, noisy room.
This ability, known as the "cocktail party effect," appears to rely on areas of the brain that have completely filtered out unwanted sounds, researchers report in the journal Neuron. So when a person decides to focus on a particular speaker, other speakers "have no representation in those [brain] areas," says Elana Zion Golumbic of Columbia University.
An estimated 3.5 million Americans suffer from low vision, but Saturday’s Low Vision Expo offers new information and technologies that can help people who have given up their favorite hobbies or activities.
Dr. Sandra Fox, assistant professor of ophthalmology at the UT Health Science Center, said a low-vision therapist can help patients find the right tools, lighting and working distance to see better for the hobbies or tasks they want to perform.