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Comment Re:GPS reference system (Score 3, Interesting) 482

If you had a run of the mill GPS system, and you drove your car very, very, far North, eventually you'd lose signal.

What I imagine is going on here, is that there is a ring of base stations watching the GPS satellites around each pole. If you know the base stations haven't moved w.r.t. the pole, then you can calculate where the center of spin is, thus where the pole is.

Comment Re:Laptop batteries, anyone? (Score 4, Interesting) 157

With any battery technology, it's almost never the "Memory Effect", but simple overcharging. If your laptop batteries are always hot just sitting there when the laptop is plugged into the mains, they won't last as long as ones that are properly charged and left alone until they are needed for discharge. With cheap cordless drills and other tools, simple putting a timer on the charger will greatly increase the number of cycles you can get out of the batteries.

Comment Re:Academic research (Score 1) 167

... Naturally then the company needs to dump all the profitable stuff and focus on what they're bad at.

Seriously why do companies do that?

We a company is in trouble it needs to cut costs and sell assets. You can sell off your crap, but nobody wants to pay much money for crap, so you'd go under anyway. The only thing that's going to make enough money to keep you afloat, is to sell your "seed corn". So you sell your most valuable assets, keep the crap and hope that someone left can spin that crap into gold.

Yes, 99 times out of 100, you are going under anyway, but if every other way has 100% chance of failure, it's time to throw the Hail Mary pass and hope for the best.

Comment Re:Can detect buggy software? (Score 1) 68

It's doable to ensure a program does exactly what its specs say it should do. See http://en.wikipedia.org/wiki/Formal_verification.

It's not often done because it's extraordinarily time-consuming; the time it takes to do goes up exponentially with program length/complexity, I believe.

But it's not doable to automatically ensure the specs are correct. i.e. If you have correct specifications for an adult, those might not be appropriate for an child or infant.

Submission + - Aereo TV rebroadcast is still legal. (wired.com)

Maximum Prophet writes: While Redigi is illegal, Aereo isn't. “We conclude that Aereo’s transmissions of unique copies of broadcast television programs created at its users’ requests and transmitted while the programs are still airing on broadcast television are not ‘public performances’ of the plaintiffs’ copyrighted works..."
Of course both decisions are going to be appealed.

Comment Re:Wrong lesson... (Score 1) 1111

... He refused to put his life at risk when the police threatened him, and they made good on the threat, even if he was within the law. ...

True, but man, how cool could it have been if he had agreed? He, and his family were already in danger, even if he didn't cooperate with the feds. They were going to set him up with a shop with everything he needed. He could have modded cars for the CIA, and become "Q". If I were him, the first mod would be to put machine guns in my own car.

Comment Re:What about the Energy offset? (Score 1) 158

Is it CPU cycles that take the power?

Suppose I stream a DRM'd movie from Netflix that's 4GB. I don't know how to measure it explicitly on my computer, but I know I can do the decode entirely in software, and that the TDP of my CPU is 35 watts. I doubt that the difference between playing the movie with and without encryption is that big of a fraction of that -- perhaps 5W?

How does that compare to the power used by the routers etc. that carried that data to me?

Good question, but unencrypted data caches better. If you and your neighbors all want to watch the same show, a torrent-type protocol that sends a bit of the show to each, then your computers trade amongst themselves, is much more efficient that sending a specific stream to each machine.

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