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Comment: Yeah, but ... (Score 1) 549

by jastus (#32049798) Attached to: The End of the PC Era and Apple's Plan To Survive
While I fully expect "cloud computing" to result in the same resounding THUD as did earlier Paradigm Shifts (the network is the computer, etc), I think Old Doc Jobs is trying to take a look over the next hill at where computing for today's non-computer-geek/non-computer-professional/non-power-user computer users will be in five to eight years. He's decided where he thinks that will be, and he's pissing in all the corners of that particular property so that he and his progeny can milk it for all it's worth. It's not so much what the next paradigm will be, but the fact that there WILL be a next paradigm of some sort or other. I expect to be using a PC (Mac, actually) until they pry it from my cold, dead, fingers, but that's on my professional side. As a personal user, I am keeping a close eye on iPad because I think it's got a chance of morphing into something really useful. People have been calling Jobs a fool and an idiot for years, and he's still standing and still doing some good work. I'd not bet serious money against him.

Comment: Re:Not a normal event, but an exceptional one (Score 1) 210

by jastus (#27967473) Attached to: GPS Accuracy Could Start Dropping In 2010
The space-weather phenomenon that is most likely to damage GPS satellites is spacecraft charging, a build-up of very high voltages within the spacecraft due to differential charging by high-energy particules. These voltage differences can result in sudden discharges, much like a lightning bolt, inside the spacecraft. Problem is that this seems to be more of a problem for satellites in lower orbits than GPS. It remains to be seen whether or not this will be a major problem for GPS, even in a large geomagnetic disturbance such as the one that followed the 1859 flare.

A more subtle impact might be small changes in the GPS orbits due to changes in drag on the satellite by increased local particle density should the shock from the CME push the magnetosphere in far enough to put the GPS satellites outside the magnetosphere and into the solar wind. These changes will result in short-term GPS errors, as the satellites won't be where they are expected to be. This, however, can be fixed fairly quickly by correcting the orbits and the orbit elements from which the expected positions are calculated.

Comment: NASA = Publicity (Score 1) 356

by jastus (#26420023) Attached to: Is a 'Katrina-Like' Space Storm Brewing?
I've been in the business of what's become known as "space weather" since 1972 (yeah, an Old Guy). One thing I've learned in this time is to ignore NASA when it comes to space weather issues. We in the community have been aware of this issue for decades, and it has been brought to the attention of The Decision Makers on many occasions at many levels with both government and commercial organizations. The lack of "leaping into action" has been stultifying, mainly because this disaster has never happened and so the bureaucratic take is that it can be safely ignored (same thinking that won't put a stoplight at an intersection until 10 people have died there). Recall that NASA is also the source of the lowest of the predictions for the upcoming solar cycle. So, on one hand they say "hey, the sky is going to fall" and on the other "hey, rainshowers at worst". All NASA cares about is publicity. The official organization for making these kinds of predictions is the NOAA Space Weather Prediction Center (I don't work there, or for them).

Comment: Re:Not $2B Over (Score 1) 210

by jastus (#25292069) Attached to: Next-Gen Mars Rover In Danger of Cancellation
Shaky argument "we've already spent X, so that's lost if we don't spend more". The "sunk cost" argument, which is misleading. That money isn't lost, it paid salaries and bought some hardware that might find life in other programs. The question is, does it make sense to continue to pour money into this pot or would that money be better spent elsewhere. Knowing NASA and university operations, I'd suspect there are better places for the money.
Security

+ - Security vrs. Getting the Job Done

Submitted by jastus
jastus (996055) writes "Today's Dilbert cartoon struck several nerves. Many people I work with, primarily government but increasingly private industry as well, have on-going problems with their IT security folks (typically referred to by endearing names such as Network Nazis). The Draconian, and often mindless, rules laid out in the name of security make it hard to the point of impossible to use even simple things like email and sftp. Quite often this is at the cost of getting the job done, which hardly ever seems to impact the security folks. Their motto seems to be "the only good network is no network." Is FUD in the security side of IT going to eventually kill off many uses of the Internet?"

That does not compute.

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