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Comment Re:Of-course it is a checkbox (Score 2, Informative) 75

But many types of video processing DO scale very nicely, as racks and racks of SGI machines proved years ago ("rendering farm" is a beautiful name for computers...). The "flow of time" argument against scaling, which is basically an argument against easy parallelization, works for some things but not others.

Even when the analysis or manipulation of one frame depends heavily on those before it, most video (or audio) work is broken nicely into scenes (or tracks/movements) which can be easily scaled - damn near linearly.

Financial markets work similarly. Yes, there is a very important interdependence, sequentially significant, but only between certain transactions. There may need to be "traffic cops" that don't scale linearly, but other parts of the transactions will scale nicely.

In the limit, nothing that we do will scale efficiently forever (to extremely large OR small), but video processing and financial systems are two examples which seem to scale quite well.

Image

NASA Tests Flying Airbag 118

coondoggie writes "NASA is looking to reduce the deadly impact of helicopter crashes on their pilots and passengers with what the agency calls a high-tech honeycomb airbag known as a deployable energy absorber. So in order to test out its technology NASA dropped a small helicopter from a height of 35 feet to see whether its deployable energy absorber, made up of an expandable honeycomb cushion, could handle the stress. The test crash hit the ground at about 54MPH at a 33 degree angle, what NASA called a relatively severe helicopter crash."

Comment Re:Replace compressed air with compressed hydrogen (Score 1) 278

Any car with hydrogen power is going to have highly compressed hydrogen gas onboard. There are efforts at storing it other ways, but to my knowledge nobody uses them in cars at the moment, as they would be frickin huge. Whether the hydrogen is ultimately burned in a fuel cell or an ICE (using some of the compression energy as well) shouldn't make much of a difference to the safety of the fuel storage. Just like with a gasoline car, most of the danger is in the tank, not what kind of engine is up front.

Comment Re:Seen from space (Score 1) 177

I sure hope not. Can you imagine what the electric bill would be if the insulation was that poor? And of course just a short distance away would have to be a HUGE heat output from condensers or heat pipes taking all that heat away. My guess is that a high-res thermal imaging satellite could see the heat from the HVAC above, but never the cold areas below around the accelerator itself.

Businesses

$529M Gov't Loan To Develop $89,000 Hybrid Sports Car 293

theodp writes "The WSJ reports that a tiny car company backed by former VP Al Gore has just gotten a $529M US government loan to help build an $89,000 hybrid sports car in Finland. The award this week to California startup Fisker Automotive follows an earlier $465M government loan to Tesla Motors, purveyors of a $109,000 British-built electric Roadster. Fisker's other investors (PDF) include the Al Gharaffa Investment Co., a Cayman Islands corporation."

Comment Re:Seems silly (Score 1) 220

Of COURSE!!! And penguins, who wear tuxedos comprised of millions of Maxwell's demons that, like your imagined polar bears, actually take heat from their surroundings while maintaining a much higher temperature...

Oh, and there are trolls that do similar things, but can do so over amazingly long distances using advanced technologies. They are, though, a type of parasite, depending on other relatively un-advanced creatures to feed them negative entropy.

Social Networks

Happiness May Be Catching 176

chrb writes "The NY Times Magazine has an interesting article about research, based on the long-running Framingham Heart Study, modeling real world social networks. It seems that tendencies to be happy, not to smoke, and not to become obese are passed between nodes in a directed graph in a way that suggests such concepts are 'contagious.' Well-connected nodes in the graph (i.e., people with more friends) are more likely to be happier than less-connected nodes, even when the edges represent more distant friendships. Individuals quitting smoking, or becoming obese, influence not only their immediately connected friends but also friends of friends, with the effect sometimes skipping the intermediary node. The contagion effect is most noticeable when a tendency is passed from one person to another of the same sex — friends of the opposite sex, including spouses, are not as influential."

Comment Re:Actually, the shuttles have taught us a lot (Score 1) 297

There was a paper a few years ago by a guy at or previously at NASA (I'm being lazy tonight and not looking it up, but I'd be happy to find it if you like) which rather convincingly showed that if we used a shuttle on the schedule ORIGINALLY planned for it (several launches per month rather than per year) it would have been cost effective.

I'm not sure if your statement that we're much closer to reliability and "cheapness" is meant to imply that the shuttle has helped in this respect, or not; we could argue whether it has helped give only motivation if not otherwise contributed directly to practical experience in reliable and inexpensive launches. In either case, it has been a very expensive (per launch) platform because it didn't work out as planned, and we have hopefully (!!) learned something about how the government needs to plan for things...

That said, my impression is that there is no such possible thing as a cheap, reliable, NON-commercial launch. Whether we achieve such a thing commercially is up to SpaceX and SpaceX alone, in the short term.

Comment Re:Problem with wind and solar? (Score 1) 412

I'd bet money that we've moved more stuff down than up - here are things that could go either way that have way more impact than buildings:

- Roadway cuts/causeway building
- Dams and reservoirs
- Coal and other mining, both deep and mountain clearing
- ???

On average I would have to guess these things almost balance out, but my money's with gravity on this one.

Comment The soap box (Score 2, Insightful) 138

While your three boxes are neat and tidy, there is one box you've left out that everyone in a representative democracy is supposedly guaranteed above all others - the soap box.

This one is most important here, since the jury hasn't yet been formed, there is nothing in the legislative pipeline that will likely reform copyright if some person or persons is elected, and of course killing people or threatening to do so is way out of line in this case.

Basically what is happening seems to be a conflict between:

  1) somebody's right to limit others' free speech involved in suing (in front of a jury eventually?) to protect their claimed legal copyright to limit others' free speech, and

  2)free speech itself.

Censorship

Japanese ESRB Bans Rape Depiction In Games 662

eldavojohn writes "The Ethics Organization of Computer Software (EOCS), now 233 companies strong, and met in Tokyo yesterday to ban a controversial title from Japan known as RapeLay, an eroge game (something much more adult than the more popular dating simulators). It's gotten a lot of press as reviewers have noted at one point the player must force sex on a 12-year-old. More importantly, the large ($353 million annually) adult game industry in Japan will now need to stay away from rape in their games if they wish to remain a member of EOCS. RapeLay seems to be available on Amazon's UK and JP sites, sparking outrage and causing a former US Ambassador to Japan to write an editorial criticizing Japan, saying, 'Only Japan allows people to possess these hideous images without penalty. Six of the G-7 countries have found ways to protect the innocent from being prosecuted for possession of child pornography. Is it not time for Japan to find a way to punish the guilty?' Singapore's Straits Times has more details, pointing out that it's still not illegal to possess these materials in Japan. We discussed this and other games last month in an editorial."
Education

Go For a Masters, Or Not? 834

mx12 writes "I'm currently an undergrad in computer engineering and have been thinking about getting my masters. I have a year left in school. Most of my professors seem to think that getting a masters is a great idea, but I wanted to hear from people out in the working world. Is a masters in computer engineering better than two years of experience at a company?"

Comment Re:Opportunity (Score 1) 609

assuming North Korea didn't include an auto-destroy mechanism onboard

If they did, they better hope it worked better the the rest of the mission.
Turns out, it IS rocket science! Who'da thunkit?

I was thinking that might be the only part that DID work... which would have to be kinda mixed news to the engineer in charge of that subsystem.

Then again, I also wonder if they would even have a destruct-mechanism. If it has to be enabled remotely, what are the chances that someone's jamming or "educated-guess" control interference signals might set it off?

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"If you want to eat hippopatomus, you've got to pay the freight." -- attributed to an IBM guy, about why IBM software uses so much memory

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