The IBM machine's mistakes offered insights about how it works.
A thin slab of metamaterial increases the efficiency of wireless power transmission by an order of magnitude, say researchers
IBM's computer can achieve a victory even if it doesn't beat the humans on Jeopardy.
Certain words disrupt the blogosphere in the same way that earthquakes shake the planet. And that makes them ripe for an earthquake-like magnitude rating.
Those who've journeyed to China to see how electronic devices are made have been shocked by working conditions.
Reactions to Obama's proposed wireless plan lean towards the skeptical.
Rounding up reaction to the news that the companies will collaborate on smart phones.
The best of the rest from the Physics arXiv this week:
The Gawker empire is about to turn into pure energy and ascend directly to heaven, where it will kill its maker and force humanity to look at celebrity gossip until the end of time. Probably.
Virus-hunting Salmonella, a warning to drug companies, and the fall of RNAi.