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Comment What's MediaGoblin? Do we care? (Score 4, Informative) 73

The Slashdot article doesn't tell me what MediaGoblin does, or what it's for. Nether does the MediaGoblin site. The documentation, in typical Gnu syle, starts out with "how to participate" and continues with installation instructions.

It's sort of like Wordpress, but with different features and support for streaming media. There's a list of sites that use it. Of the public sites listed, all but one are demos of MediaGoblin. The first site on the list that isn't a a demo and works is this set of baby pictures. There's one site that lets you upload stuff. It's a collection of uploaded pictures with no organization.

This seems to be a publishing system for people with nothing to say.

Comment Re:Urgh (Score 2) 531

Have you Americans *still* not gotten over this whole Marxist/Communist/Socialist = EVIL thing yet? Your government really did a good job with the propaganda during the Cold War it seems.

Holy shit, dude. It's not the propaganda from the Cold War, it's the tens of millions of dead bodies that Communism produced last century. In my book, that is EVIL, yes. That doesn't mean there aren't other evils in the world or that the US has always been the bastion of freedom that we should be or any of that.

I cannot fathom how someone could be arguing in 2014 that Communism isn't evil.

Comment Microsoft did something like this once before (Score 4, Interesting) 120

Back in the 1990s, Microsoft developed something similar. Their idea was to render frames in layers, with the more distant or less active layers rendered less often. if the viewpoint changed, the background layers were scrolled, rotated, or transformed to match, rather than being re-rendered immediately. It never caught on, because graphics hardware became fast enough to re-render everything on for each frame.

This new thing is similar. Mispredicted frames are viewpoint-warped as a temporary measure so the user sees something. The image is wrong, but close enough to look OK until a new rendered frame is sent. It looks OK for Doom, on which it was tested, because Doom is mostly about the shooter and the opponents moving; there's not much general activity in the background. GTA IV/V would probably look much worse than normal.

The whole concept represents a desperate attempt to make something "cloud-based" that shouldn't be.

Comment Re:Travel trailers have dual use. (Score 1) 191

This is interesting stuff. Where do you recommend buying thi s equipment?

Since we buy new we have shopped reputable dealers. Since what we wanted was small and self-contained we were able to find a dealer with something suitable already on the lot that he was having trouble unloading, so we got it at a good price.

The trick is to research the manufacturers on the net, first, to find out which have a track record of producing good products.

It's been a while since we last bought one, so our research is out of date and you'll have to do your own. There is some turnover in the industry, so a company that is good for decades may cheapen their product, merge, or go out of business.

Our current one is by Sunnybrook, which has since merged into another company. (Pity: They did great trailers with solid aluminum framing, great layouts, and high quality throughout. Only problem was the imported tires - which we replaced with Goodyears after a few thousand miles.)

Before that we had a Prowler from Fleetwood, which has since gone out of business. (They had had a great rep, but our instance, and others from their last few years, had issues with water leakage.)

Comment Re:I wish we didn't need something like this (Score 3, Insightful) 595

No need to paint the male gender as a whole as being filled with sociopaths. It's just the law of large numbers at work. There's maybe 30 million American men in the age rage that are likely to pick up srange women; if just 1/10 % of them are sociopathic predators that's 30,000 predators; and since they *are* predators they'll be overrepresented in young women's encounters with men in pick-up scenarios. Small numbers can produce disproportionate problems. In this case it represents numbers the actions of such a small proportion of men that our ideas about how normal people act aren't a reliable guide.

Drink spiking is a very rare crime. Most studies that look for evidence of it find very little. The highest I found was a government study which found date rape drugs in 4.5% of the cases from four sexual assault clinics. Note this is 4.5% of the cases where the assault occurred, so we're not talking about 4.5% of encounters, we're talking 4.5% of rapes. 4.5% is certainly high enough to be a concern in certain situations, like residential parties at a college. In such a situation a date rape drug detector might actually have some utility, even though it addresses relatively rare actions by a tiny proportion of men.

A bigger concern than what we think of as a "date rape drug" is alcohol itself. The same study that found date rape drugs in 4.5% of sexual assault samples found alcohol in 55%. This result is consistently found across studies: alcohol is very frequently associated with sexual assault -- around half of the time. This is especially concerning because some people (men and women both) don't believe that surreptitiously incapacitating someone with alcohol in order to have sex is rape. They don't distinguish ethically between two people getting drunk and having sex and one of them slipping extra alcohol into a drink.

But the fact remains most men wouldn't do something like that. But that doesn't preclude the possibility that a woman might often encounter the few remaining men who would. A typical man has sex with a small number of women many times; a man who has sex with a large number of women only once is bound to be encountered by women disproportionately often.

Comment Re:Travel trailers have dual use. (Score 1) 191

Considering you're talking about multiple properties already, I dont think your cost scale exactly matches everyone elses.

Even (especially!) in Silicon Valley you don't accumulate multiple properties by being spendthrift.

How much did you spend on your hobby equipment? Or your last couple vacations?

Even in pricey California you can buy a good NEW travel trailer in the 20' range, loaded, for about $15k. That will sleep four if they're friendly, two quite comfortably. If you're willing to go small you can get into the $7k range. Special order skipping the microwave, oven, and air conditioner can drop it further. Buy used for far less, if you know what to look for, are willing to accept the extra maintenance risks or put in a bit of sweat equity fixing it up, and you can get to silly price levels. (I wouldn't, though, due to allergies.)

The trick is "travel trailer", not "RV" or even "Fifth Wheel", and going small. (You can easily drop the price of a medium-sized house for one of the class-A land yacts.) Pickup campers, on the other hand, tend to live on the pickup truck because it's such a pain to remove it, so the rig might as well be an RV.

In addition to the price difference, the trailer/tow vehicle combo beats the heck out of RV in the long run: The house and the runing gear wear out at different rates - with an RV when one dies they both do. Unhooking the tow vehicle gives you a vehicle at your camp. Keeping it small also gives you the ability to camp in a lot more places than something large (like some federal and state parks of the more wilderness sort, which have twisty roads and small campsites tucked into out of the way places.)

The trailer/RV/whtever approach may not make sense JUST for earthquake preparedness. But if you find camping or cross-country travel enjoyable (and are getting a bit too fragile to do it with tents), using the money you'd otherwise have spent JUST stocking earthquake supplies can make the camping budget far more managable. It also lets you get two benefits for ONE chunk of your time getting things set up.

(I also find it's lots of fun to set it up with techie toys. B-) )

Comment Re:A stupid consideration (Score 2) 511

Exactly. If you want to regard yourself as an engineer, you have to start by accepting you are working to serve the interests of the client, not your career. I've seen so many problems occur because programmers want to have a certain technology on their resume. And the sad thing is that it works to get them through the HR filter. If HR is told to look for experience with a particular technology, it doesn't seem to matter whether the candidate's experience with that technology is failure.

Comment Travel trailers have dual use. (Score 4, Informative) 191

We have a self-contained travel trailer that doubles as natural disaster supplies. Stocked with canned and boxed food for weeks, 14 gallons of propane (always more than 7, since you swap tanks when one of 'em empties and top 'em off after a trip) can keep the fridge going for months, and we have a couple spare tanks.

40 gallons of fresh water are good for three days of camping WITH showers. In a natural disaster you can skip the showers and stretch it for a month or so. A couple hundred amp-hours of batteries (i.e. two of 'em) can keep things going for a while and can be charged from solar panels (or the vehicle engine) as well. (And we're just starting to convert the lighting to LEDs, for about a 8-16x improvement in power consumption vs. incandescents.)

The townhouse also has canned food for months and a case or two of bottled drinking water (as does the ranch house, which also has a well if we ever get a generator, windmill, or solar panels & inverter that can run it when grid power is out.) It also provides redundancy if the trailer is damaged, just as the trailer provides redundancy if the house collapses or burns.

Travel trailers are not very expensive. Set them up for a weekend's camping, park them far enough from the house that expected disaster cases don't zap 'em both, and they'll give you your "three days until help arrives" in style, or a month's survivalist roughing-it. They also have the advantage that, if they don't get damaged in the initial event or you have warning, you can hook 'em up and move to a safer or more convenient location. All "for free" if you like occasional camping, or cross-country ground travel without having to rent allergenic hotel rooms. B-)

Comment WELL said. (Score 1) 135

What "we" are worried about is the rich cultural and political elite losing their seaside mansions ...

Well said, sir. (I already commented in the article so couldn't mod that up. I had to settle for "friend"ing you. B-) )

Also: In the spirit of "Never letting a crisis go to waste", it's also an opportunity for the 1% to incrase their power over the 99%, and find ways to rip them off. (Carbon taxes. Government mandated carbon credit exchange schemes, with markets provided, and billions in transaction fees raked in, by "entrepenuers" like Al Gore and Barak Obama.)

Comment Bigger quakes are longer. (Score 3, Interesting) 135

"Why do Californians think they can "feel" the strength of a quake? It's complete nonsense because you cannot feel its distance."

It's not nonsense at all. Bigger quakes last longer. The duration of the shaking is a good measure of the actual strength, and can be read directly off the seismographs, while more accurate estimates take a while to compute from these and other measurements.

That's why you see initial estimates as "duration magnitude", later revised to "moment magnitude" which more accurately measures the energy from measurements of the distortion of the underground structures due to the stress changes. You'll notice that it's SO good that the adjustment is usually only a couple tenths of a scale point - less than a 2:1 difference in energy.

The rip starts at some point along the fault and propagates along it in fits and starts, much slower than the compression and shear waves from the individual releases, as the motion from the relaxing stresses in the section that let go increases stresses in the next section. This keeps up until the effect reaches a point where the stress isn't enough (at the time) to make it let go. (You get aftershocks when the more gradual readjustments add "straw to the camel's back" and get it going again - or start one on another nearby section or another nearby fault.)

The strength of the wave decays with distance. But the duration increases as the wave takes multiple paths, scattering off underground structure. So a distant earthquake doesn't "feel" shorter than a nearby one. Longer-but-weaker. Also, the P wave propagates much faster than the S wave, is weaker, and doesn't "stretch out in time" much at all. Time separation is greater with distance. They feel very different. (Mnemonic: First the P wave makes you pee, then the S wave ...) So with enough experience one could ballpark both the strength and the distance from the feel of the quake.

For instance: Loma Prieta, a 7.1 moment magnitude (6.9 early duration magnitude estimates), propagated along aobut 22 miles of fault. It lasted 8 seconds, though as you got farther away the shaking got up to 45 seconds before it became too weak to be noticed. I was standing in front of Palo Alto City Hall when it got there, and my perception was first (P wave) "a truck is going over this overpass - wait', I'm not ON an overpass", then (S wave) "being in an airplane experiencing 15 seconds of mild turbulence." (Most ground-bound constructions {except for mobile and modular homes, which are built to be shipped on highways}, weren't built to withstand "15 seconds of mild turbulence". B-b ) I was listening to a San Francisco radio station: Seconds after the shaking started, the announcers got in two sentences (first about feeling an earthquake (P wave), then that it felt big (start of S wave)) before the transmitter failed (a bit into the S wave) - and the shaking was far from over.

The scale is logarithmic base 10, so a 1 point difference in scale is a 10x difference in energy, and thus time. This makes it EASY to guess the magnitude (if your sense of time doesn't distort to much from the excitement). A 6.1 would be 1/10th the energy of Loma P., so also about 1/10th the time, and Nappa to Oakland is comparable to Loma Prieta to Palo Alto, so call it a second and a half of the strong shaking.

On the other hand, for the first quake I felt after moving to CA I was nearly on top of a small one. (I think it was a high 2.x or a low 3.x.) Very sharp single shock - like a car hitting a concrete building while you're inside - followed by "echoes" as the wave moves on rapidly and EVERY building makes the sound of being hit (followed by a chorus of car alarms - shock sensors were common then). Sensation: Being in an elevator when it hit a misaligned section of the guide track. Three-stage perceptual distortion, as I realized that I was standing on the ground and my brain momentarily remapped my motion as a memory of the surroundings moving, as if they were painted on canvas scenery that was being shaken, then I realized it was an earthquake and it all remapped back - though the memory of the remappings was still there. (Next I wondered how much this phenomenon contrubuted to magical thinking among the cults California is noted for harboring.)

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