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Comment Re:2-Butoxyethanol (Score 1) 328

What I want to know is why they use this shit in fracking at all. I assume it's because it makes the process more efficient -

Yes. The process of disposing of refinery wastes. The reason they don't want you to know precisely what's in their fracking fluids and where they came from is that these compounds are wastes left over from the petroleum refining process, and they are taking this opportunity to dispose of them by injecting them into our aquifers.

It's might be simpler than that.

Part of it might just be trade secrets, your ability to frack profitably is based on your ability to be more efficient than your competitors. Telling them your secret sauce makes that harder to do.

The other part is PR, when people want to criticize you it's easier for them if they have specific compounds to criticize. It doesn't matter if it's as innocuous as dihydrogen monoxide or as toxic as plutonium, if they have a specific label to attach to it they can make it sound bad.

Comment Re:The Curve on Academic Courses (Score 1) 425

On academic programming courses - of which I've taught on many - the grade distribution is definitely bimodal and there is a clear gap between those who can and those who can't. Of course, there is variance among those who can but the difference is largely that those who can largely get better whilst those who can't never get even get it.

There does seem to be people who are permanently clueless but I suspect you're also seeing a limitation/feature of the academic setting.

If you are in fact teaching them something then things that were difficult at the start of the course will become easy at the end, in some cases you could even take a student who finished the course one semester and have them TA the next. But when you get into industry you've filtered out everyone who can't, at that point I find a lot of the remaining variance has to do with experience and motivation.

Comment 2038 is working itself out already (Score 2) 59

Several years ago I was really concerned about the 2038 rollover because so many protocols have hard baked 32 bit timestamp fields in them. Even if systems were updated the protocols might not be. But I've come to realize that once the systems are updated, the protocol tend to follow suit in the next revision, and in the next 23 years pretty much every protocol is going to go through at least one revision. There are still going to be a few holdouts that have trouble in 2038, but I'm expecting it to be as much of an event as the year 2000. A few fringe things act weird or even stop working, but pretty much everything important is OK.

Comment Re:One Criterion Missing (Score 5, Informative) 416

No. These tests prove that the device is real, and that it produces force.

Actually that is NOT what these tests show. They show that someone has done an experiment which, using their apparatus, returns readings consistent with a micro-newton force. What the experiment has NOT shown is that this is due to some new, as yet unexplained, physics.

There are a myriad of other, far more mundane, possibilities to generate such results before anyone will seriously start believing in new physics as an explanation. For example did they account for the radiation emitted bouncing back and forth between the apparatus and the vacuum chamber walls?

After the results have been confirmed independently and all the possibilities people can come up with disproven then you have an interesting result which is unexplained. At this point there are still two possibilities: either new physics OR an effect so subtle that nobody has thought of it. The only way to prove new physics is therefore to come up with a theoretical explanation which allows testing.

Whether or not you agree with this this is how science works: there are simply too many ways that a precision experiment like this can be fooled and history is littered with examples of this happening e.g. faster than light neutrinos, gravitational waves in the cosmic microwave background, cold fusion etc. The results have to be confirmed and stand several years of scrutiny before people will start to believe that they are interesting. Even when that happens to get people convinced that there is new physics here you need a model for that new physics that makes predictions which can be confirmed.

Comment Re:Failed CEO and Gubernatorial Candidate (Score 1) 553

Uh, no. Fiorina ran for US Senate. You're thinking of Meg Whitman, who tried to click "Buy It Now" on the California Governorship ($150 million campaign). But your confusion is understandable, since they're both from the tech sector, and they both spout buzzword-bingo gibberish.

Whitman lost to Jerry Brown, BTW, thus earning Brown the singular distinction of having to clean up the mess left by a B-grade movie actor twice.

Comment Re:The question is (Score 1) 416

If I understood correctly,

You don't.

it allows you to pre-warp some space ahead in your journey

No-one - that is to say, no-one with an ounce of scientific credibility - is claiming it's a warp drive. There's no reason to even start to consider the idea that it might be a warp drive. The article linked to by the summary with the words "some are claiming this means things like warp drive..." doesn't even mention any claims that it's a warp drive.

The Forbes article links to another article with these words:

When you come across an announcement like the one made by NASA Spaceflight a week ago: that NASA has made a successful test of the EM Drive — a propulsion engine that uses no propellant, seemingly violating one of the most fundamental laws of physics, while warping space in the process — you’d better make sure you aren’t fooling yourself.

And that linked article also doesn't even mention warp drive. Seems to me like some journalists need to calm down a little. "ZOMG! It's not a warp drive!!!" - yes, thanks, but no-one seems to saying it is.

It's a thing that appears to produce thrust by unknown means. That's all. It's very interesting, but it has nothing to do with anything that anyone would call a warp drive.

/me quickly skims the comment

Awesome! NASA invented a warp drive!!!

Comment Re:wapr drive (Score 5, Funny) 416

The Vulcans will be here soon, swooping in like a returning Jesus Christ to save us from ourselves at long last, show us the true path of wisdom, and help us complete the application (an on-line PDF form, no doubt) for membership in the United Federation of Planets.

And then we will all live happily ever after.

They'll step out of their spacecraft and inform us that our newly invented warp drive was invented 324,123 years ago and we cannot use it without paying the license fees of approximately 2.3 earth planets per earth year.

Otherwise we will need to wait another 14,675,877 years until it enters the public domain.

Comment One Criterion Missing (Score 4, Insightful) 416

Actually this is the one criterion missing from the list of "what would it take to convince you that it is real": a viable theory as to how the drive works which makes a prediction that can be tested by another experiment. If this is a real effect then we need a theoretical framework which can be used to explain and predict the size of the effect under different conditions which can then be tested.

This is how the solar neutrino problem was solved. For decades experiments measuring the flux of solar neutrinos had come up short by a factor of 1/3 to 1/2 of the expected value. Initially people thought the experiments were somehow wrong, then focus switched to the solar models predicting the flux but these were confirmed as correct so ultimately nobody had a clue as to why there was discrepancy. People were split between inaccurate experiments, inaccurate prediction or new physics. The problem was solved only when the model which theorists had proposed as a possible solution - that neutrinos changed their flavour as they move through space - was tested by the SNO experiment which measured both the total neutrino flux and the electron neutrino flux separately.

You need both theory and experiment to agree to get understanding and without that clear understanding I would not expect the 'warp drive' effect to be resolved. No matter how much you repeat and verify the experiment there will always be questions raised about some effect which is not accounted for (assuming the effect remains so small). After a few decades you might get to the point where people will admit that the effect is not understood but even then many will ascribe it to some subtle experimental effect rather than new physics. The only way you will change minds is by having a new theory whose predictions are verified by further experiments.

Comment Re:I am a Republican voting Conservative. (Score 3, Informative) 347

Nice spin.... how about this: Since there are so many people who do deny it, why not take a different approach that would accomplish the same thing without making Al Gore even more wealthy?

I don't see what Al Gore has to do with it.

The problem with focusing on air and water quality is CO2 only becomes a major concern in the context of climate change. You could try talking about ocean acidification which is another side effect but I don't think ignoring the elephant smashing everything in the room that is climate change is the best strategy.

Comment Re:Backup Generator replacement? Not so much (Score 1) 317

Ok, I'll grant that I could understand your first sentence. However, if it were really a problem, installing a heating loop under the array would fix the problem at the touch of a button. For the DIYer, some plastic tubing, antifreeze, and aquarium pump, and a 5 gallon tank of propane would do the job. I'll also point out that although it snows frequently, that's not typically a disaster. It's also only been 200 years since a mammoth earthquake that would, if it happened today, paralyze this nation for months. That's only three lifespans, so the odds of witnessing that again may not be as low as you assume.

Your entire second paragraph is an incomprehensible bowl of word soup. You seem to be advocating that 50 million people without gas hop in their cars and find a hotel in a different region of the continent.

Your last paragraph disregards the whole point of the damned thread: that you can recharge the batteries indefinitely without fuel. Even when keeping a dangerous amount of volatile gasoline on your premises, you get a couple days max of electricity generation, and as I pointed out, natural gas generators are no panacea either.

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