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Comment How do they fare in colder climates? (Score 4, Interesting) 904

How reliable are they in winter driving conditions? How is the battery efficiency affected by temperature? What about cabin heating? I'm having a hard time seeing any of the current crop being adopted for year-round use in areas that get more than a smattering of snow, or a few days below freezing per year.

Submission + - How to win the copyleft fight—without litigation (

An anonymous reader writes: The Software Freedom Conservancy's Bradley Kuhn is probably best known for his work in enforcing the GNU General Public License (GPL). Enforcement-by-litigation might get the headlines, but Kuhn treats the courts as a last resort.

A regular OSCON speaker, he returns this year to share the story of a project that avoided the courtroom. spoke to Kuhn about his talk and the free software landscape at large.

Submission + - Einstein and Schrödinger didn't believe in quantum indeterminism

StartsWithABang writes: When it comes to the very nature of quantum mechanics — about the inherent uncertainty and indeterminism to reality — it’s one of the most difficult things to accept. Perhaps, you imagine, there’s some underlying cause, some hidden reality beneath what’s visible that actually is deterministic. After all, a cat can’t simultaneously be dead and alive until someone looks can it? That’s one of the problems that both Einstein and Schrödinger wrestled with during their lives. An investigation of that story, their work on that front, and their friendship that ensued as both pursued that same end is thoroughly investigated here by physicist Paul Halpern.

Submission + - Tetris is hard to test (

JackDW writes: Tetris is one of the best-known computer games ever made. It's easy to play but hard to master, and it's based on a NP-hard problem. But that's not all that's difficult about it. Though it's simple enough to be implemented in one line of BBC BASIC, it's complex enough to be really hard to thoroughly test.

It may seem like you can test everything in Tetris just by playing it for a few minutes, but this is very unlikely! As I explain in this article, the game is filled with special cases that rarely occur in normal play, and these can only be easily found with the help of a coverage tool.

"The most important thing in a man is not what he knows, but what he is." -- Narciso Yepes