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We tend to think of such events as occasional, inconvenient blips. But in fact they are becoming increasingly common, and will only get more frequent and severe. This is because our electricity systems are more fragile than is commonly supposed, and are getting frailer. Unless we act, blackouts will become a regular, extremely disruptive part of everyday life.

The vulnerability of such systems is demonstrated by the Italian blackout of 2003. The event began when a falling tree broke a power line in Switzerland; when a second tree took out another Swiss power line, connectors towards Italy tripped and several Italian power plants failed as a result. Virtually the whole country was left without power. It says something when a nation can be brought to a halt by two trees falling outside its borders.

Jammie Thomas-Rasset

the first US file-sharer to take her RIAA-initiated lawsuit all the way to a trial and a verdict back in 2007. Five years, three trials, and one appeal later, she owes $222,000 to the recording industry for sharing songs on the Kazaa file-sharing network, but she doesn't plan to quit fighting.

Thomas-Rasset will follow Joel Tenenbaum, the second US resident to take his file-sharing case that far. Tenenbaum—who reached the Supreme Court first because he had only one jury trial instead of three—tried to convince the justices that they should take his case to stop the music label plan to create, in his lawyer's words, "an urban legend so frightening to children using the Internet, and so frightening for parents and teachers of students using the Internet, that they will somehow reverse the tide of the digital future." The Supremes showed no interest, denying Tenenbaum's petition back in May.

The past was, and the future is going to be, much more about performance. In this new world, recordings often function as more as ads for concerts than as money-makers themselves. (And sometimes are bundled with concert tickets, as Madonna's latest album was.) As a result, copying looks a lot less fearsome. A copied ad is just as effective--and maybe much more so--than the original.

Just ask pop singer Colbie Caillat. Caillet's music career began in 2005 when a friend posted several of her home-recorded songs to MySpace. One song, Bubbly, began to get word of mouth among MySpace users, and within a couple of months went viral. Soon Colbie Caillat was the No. 1 unsigned artist on MySpace. Two years after posting Bubbly, Caillet had more than 200,000 MySpace friends, and her songs had been played more than 22 million times. Caillet had built a global fan base while never leaving her Malibu home. In 2007, Universal Records released her debut album, Coco, which peaked at No. 5 on the Billboard charts and reached platinum status.

The problem of piracy in music is, of course, very different from the problem in comedy. Stand-up comics worry most about a rival, not a fan, copying their jokes. Still, the reduction of consumer copying of music via norms may be possible, and will become more imaginable if the music industry experiences ever-greater fragmentation and communication. There is already an interesting example of norms playing a substantial role in controlling copying in music. In the culture of jambands, we see the fans themselves taking action to deter pirates. What are jambands? In a fascinating 2006 paper, legal scholar Mark Schultz studied the unique culture of a group of bands that belong to a musical genre, pioneered by the Grateful Dead, characterized by long-form improvisation, extensive touring, recreational drug use, and dedicated fans. Although acts like Phish, Blues Traveler, and the Dave Mathews Band vary in their styles, they are all recognizably inspired by the progenitors of jam music, the Dead. But the Dead's influence is not only musical. Most jambands adhere to a particular relationship with their fans that also was forged by the Dead.

The project, which cost a total of $1.8 billion to construct, received a million-dollar loan from the Loan Programs Office. Under its “SunShot” initiative (so-named in the spirit of president John F. Kennedy’s “moon shot” program), the DoE provides guaranteed loans to unproved ventures in solar power in the hopes of promoting innovation and making the technology more cost-effective.* Although Agua Caliente (owned by U.S. energy giant NRG Energy and partner MidAmerican Solar) is now the largest photovoltaic solar facility in the world, it probably will not hold that distinction for long. Other massive solar panel facilities, such as Antelope Valley Solar Ranch One in California’s Mojave Desert, are rapidly springing up across the Southwest.

A new addition to the cast of "The Walking Dead" has been revealed today! The Hollywood Reporter brings word that Tyler James Williams (Peeples, "Go On," "Everybody Hates Chris") is set to play a mysterious character named Noah in the upcoming fifth season, which debuts on AMC next month.

The overall franchise also has a character named Noah Cruz, who appeared in the prequel video game The Walking Dead: Survival Instinct. Given that the Cruz character roughly matches Williams' age and ethnicity, it's possible that that's who we'll be seeing in future episodes.

three tonnes of force inside a golf ball-sized sample of material that is normally as brittle as fine china.

Superconductors are materials that carry electrical current with little or no resistance when cooled below a certain temperature. While conventional superconductors need to be cooled close to absolute zero (zero degrees on the Kelvin scale, or –273 °C) before they superconduct, high temperature superconductors do so above the boiling point of liquid nitrogen (–196 °C), which makes them relatively easy to cool and cheaper to operate.

Superconductors are currently used in scientific and medical applications, such as MRI scanners, and in the future could be used to protect the national grid and increase energy efficiency, due to the amount of electrical current they can carry without losing energy.

The researchers are not shining light through crystal – they are transforming light into crystal. As part of an effort to develop exotic materials such as room-temperature superconductors, the researchers have locked together photons, the basic element of light, so that they become fixed in place.

The results raise intriguing possibilities for a variety of future materials. But the researchers also intend to use the method to address questions about the fundamental study of matter, a field called condensed matter physics.

To build their machine, the researchers created a structure made of superconducting materials that contains 100 billion atoms engineered to act as a single "artificial atom." They placed the artificial atom close to a superconducting wire containing photons. By the rules of quantum mechanics, the photons on the wire inherit some of the properties of the artificial atom – in a sense linking them. Normally photons do not interact with each other, but in this system the researchers are able to create new behavior in which the photons begin to interact in some ways like particles. "We have used this blending together of the photons and the atom to artificially devise strong interactions among the photons," said Darius Sadri, a postdoctoral researcher and one of the authors. "These interactions then lead to completely new collective behavior for light – akin to the phases of matter, like liquids and crystals, studied in condensed matter physics."