OverTheGeicoE writes "CNET has a story on DHS' whole car X-ray scanners and their potential cancer risks. The story focuses on the Z Portal scanner, which appears to be a stationary version of the older Z Backscatter Vans. The story provides interesting pictures of the device and the images it produces, but it also raises important questions about the devices' cancer risks. The average energy of the X-ray beam used is three times that used in a CT scan, which could be big trouble for vehicle passengers and drivers should a vehicle stop in mid-scan. Some studies show the risk for cancer from CT scans can be quite high. Worse still, the DHS estimates of the Z Portal's radiation dosage are likely to be several orders of magnitude too low. 'Society will pay a huge price in cancer because of this,' according to one scientist."

An anonymous reader writes "Researchers at the National Renewable Energy Laboratory just announced that they have found a way to create more efficient photovoltaic cells using 50% less energy. The technique hinges upon a new optical furnace that uses intense light instead of a conventional furnace to heat silicon to make solar cells. The new furnace utilizes 'highly reflective and heat-resistant ceramics to ensure that the light is absorbed only by a silicon wafer, not by the walls inside the furnace.'"

The Moving Pixels blog has an article about the delicate balance within video games between giving players meaningful choices and consequences that cannot necessarily be changed if the player doesn't like her choice afterward. Quoting: "One of my more visceral experiences in gaming came recently while playing Mass Effect 2, in which a series of events led me to believe that I'd just indirectly murdered most of my crew. When the cutscenes ended, I was rocking in my chair, eyes wide, heart pounding, and as control was given over to me once more, I did the only thing that I thought was reasonable to do: I reset the game. This, of course, only led to the revelation that the event was preordained and the inference that (by BioWare's logic) a high degree of magical charisma and blue-colored decision making meant that I could get everything back to normal. ... Charitably, I could say BioWare at least did a good job of conditioning my expectations in such a way that the game could garner this response, but the fact remains: when confronted with a consequence that I couldn't handle, my immediate player's response was to stop and get a do-over. Inevitability was only something that I could accept once it was directly shown to me."

Torrentfreak reports that after calculating download frequency for pirated copies of popular video games, Call of Duty: Black Ops has won the dubious honor of being the most pirated game of 2010. The PC version of the game was torrented roughly 4,270,000 times, and the Xbox 360 version was downloaded an additional 930,000 times. (The most pirated Wii game was Super Mario Galaxy 2, and Dante's Inferno somehow managed to accrue the most downloads of Xbox 360 games.) Fortunately for Activision, the game has still made over $1 billion in sales, and its 20,000,000+ players have racked up over 600,000,000 man-hours of play time since the game's launch in early November.

Phoghat writes with this excerpt from the Washington Post: "It won't be long before video from the Internet is always within reach — whether it's on a smart phone, a tablet computer or a high-end television in your living room. But what if there's nothing worth watching? ... Regulators are pushing for tough conditions to ensure that Comcast can't stifle online video services by withholding content or pushing up prices for marquee NBC programs at a time viewers are starting to turn to the Internet for recent movies or the latest episodes of 'Saturday Night Live,' '30 Rock' and other popular TV shows. The concessions they extract from Comcast in its bid for NBC will help determine whether customers can someday realistically drop their cable subscriptions and go online-only for their TV. ... Comcast has been resisting federal regulators' efforts to tear down some of those walls, arguing that those efforts are unnecessary because NBC Universal accounts for about 10 percent of television viewing in the US and less than 10 percent of US box office revenue — and is therefore too small to dictate how the industry will develop."