A Solid That’s Light as Air

If you wanted to catch a few particles of comet dust speeding through the vacuum of space at 6 kilometers per second — without damaging or destroying those particles — how would you do it?

Faced with exactly this problem, scientists at the Jet Propulsion Laboratory focused on aerogel — an extremely lightweight, porous material that is chemically identical to glass, but weighs only a little more than air.… Read the rest

A Solid That’s Light as Air

Google’s Private Lives

A new search technology from Google makes it possible for law enforcement officials to examine personal documents from your hard drive, without your knowing it, according to the digital-rights advocacy organization Electronic Frontier Foundation (EFF).

Released last week, Google Desktop 3, the latest version of the company’s desktop search utility, adds a “Search Across Computers” feature that automatically uploads files from a user’s computer onto Google’s servers.… Read the rest

Google’s Private Lives

Here Comes a Google for Coders

For most people, open source is a synonym for free software. But for programmers, open source is about sharing code, building on the work of others and not having to reinvent the wheel — at least, that’s the ideal. In practice, code reuse remains very low, because it’s often too hard for programmers to find relevant bits of code for their applications.… Read the rest

Here Comes a Google for Coders