Dystopias

today’s students struggle with a feeling of information overload. “They feel overwhelmed, and they’re developing a strategy for not drowning in all information out there,” she said. “They’re basically taking how they learned to research in high school with them to college, since it’s worked for them in the past.”

college students approach research as a hunt for the right answer instead of a process of evaluating different arguments and coming up with their own interpretation.

Caprica may have gone too far, tried to cover too much. It broke one of the cardinal rules of mainstream science fiction, which is that if you have a strange alternate universe you'd better populate it with recognizable, ordinary characters. But I like the kind of thought-experiment audaciousness that says, Hell yes we are going to give you complicated characters who defy stereotypes, and put them in a world whose rules you'll have to think hard to understand. It's too late to bring Caprica back. But I hope that this show is the first part of a new wave of science fiction on TV. Like The Sarah Connor Chronicles, Dollhouse, and Fringe, Caprica tackles singularity-level technology as a political and economic phenomenon - not as an escapist fantasy. And that's why it was a show worth watching, even when it stumbled.

The central issue in writing federal privacy legislation is whether the Internet industry's efforts to police its own behavior has been effective enough. Proponents of legislation argue the industry is a Wild West where consumer data are gathered and sold without restrictions. Opponents of legislation say the industry is committed to providing tools to give consumers better insight into and control over data about themselves.

An unmanned aircraft that can fly a predetermined route costs a few hundred bucks to build and can be operated by iPhone.

the Federal Aviation Administration limits domestic use of drones to the government, and even those are under tight restrictions. FAA spokeswoman Laura Brown said the agency is working with private industry on standards that might allow broader use once drone technology evolves. When it comes to paparazzi use of drones, she said, "our primary concern with that would be safety issues."

The ability to share software and hardware designs on the Internet has sped drone development, said Christopher Anderson, founder of the website DIY Drones, a clearinghouse for the nearly 12,000 drone hobbyistsaround the world.

The marsh is dotted with atmospherically controlled chambers that contain the same amount of CO2 that the planet may be exposed to by the year 2100 - roughly double what it is today. "They're like time capsules. We are simulating the future inside them," says Dr Megonigal. "We're trying to travel forward in time by subjecting these plants to the conditions the whole world will be subjected to a hundred years from now."

Coastal wetlands are the first defence against climate change and the 60-hectare (148-acre) salt marsh at the heart of the Smithsonian Environmental Research Center has been home to some of the most important ecological studies of the past 40 years.