Before the birth of Christ the Greeks built a mechanical computer. Now an Apple engineer has made a functional Lego replica.
The best of the rest from the Physics arXiv this week:
The Solar System consists of distant gas giants and inner rocky planets separated by an asteroid belt. Now an elegant new theory explains how this structure arises
The Web-reliant Cr-48 starts up in an instant, and comes with "free" 3G. But Google's online app store needs work.
Cars that drop their users off and park themselves using an iPod touch video feed could come to market in the next decade.
A French satellite observed a dramatic increase in ultra low frequency radio waves over Haiti in the month before the M7.0 earthquake earlier this year.
The man who taught a generation what it meant to be a hacker needs help.
Viruses that spread by Bluetooth or WiFi could be completely contained by a new type of white worm, say computer security researchers
A laptop running just a Web browser might sound a bit limited. But Google is betting you'll want one.
Former Google engineer Tom Annau is helping upstart search engine Blekko index the entire Web--a problem that's getting easier, not harder.