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Comment Re:critical thinking (Score 1) 561

if I tell my son to do something and he asks why, that is encouraged and a reason is given, things are explained. I don't subject to the "because I said so" mentality of parenting. Sometimes you let them do stupid things to learn and see the consequences. If a parent can't give a good reason for why something can or can't be done, perhaps that isn't a rule that needs to be enforced.

I really try to do this to, but it is so hard.

Me: Get in the car. Child: Why? M: Because we have to go to school? C: Why? M: Because you need to learn things and play with other kids, and Daddy has to go to work? C: Why? M: Well, social development is important and I have to make money so we have a house and food to eat? C: Why? M: Why what? C: Why we need food to eat? M: If we don't eat we will die. C: Why? ........

And this doesn't end. He will keep going until I either say, "I don't know" or "Just because. That's the way it is." I hate saying it, but I don't know how to break the cycle. I'm trying out other options such as, "I don't know, why do you think we will die if we don't eat?"

How about: I don't really know, but I have a good idea where to look for the answer. Then go hit the local library (grasp!!) for books on basic human biology.

Comment Re:Wrap rage...? (Score 1) 639

I have the Nexus 7.

First of all, the unboxing wasn't that bad. The box was taped, yes, but once I sliced it the box slid apart with no issues. The wrap around the Nexus 7 was not that hard to remove. The only way you can bugger that up is to not notice the directions. There's arrows, move this, then that, and it slides out. When I unpacked some iPads for work they were basically similar in their unpacking.

However, the part that got me about the packing is the sleeve. The box itself was fine. The box slid into a sleeve that had the artwork.

I was about ready to throw the goddamned thing against the wall. The sleeve was pressure fit so tightly that Hercu-Thumbs couldn't even slide it out. After fussing with it for a few minutes I went into a rage and tore that sonovabitch up. If I had to do it again I wouldn't even bother with sliding it off, I'd get a letter opener or something like it to take apart the sleeve at its seam.

Whoever thought of that packing design should be dragged out to the street and SHOT.

I did not find putting the box back to the sleeve too hard. Maybe every box is different?

Comment Re:Ubuntu is doing the right thing (Score 1) 377

If the only thing keeping this secure

Secure from what? The goal is not to secure you from a bootloader virus; I doubt that was discussed for more than five minutes while this system was being designed. The goal is to secure DRM systems from you, the user, because of what happened with DVDs and deCSS, what happens with software cracking tools, etc. The goal is to turn PCs into iPads. This is a trap, designed to rob you of the freedom you have right now, which as it so happens is the freedom that PCs were meant to provide in the first place.

Right. I would agree this crap is for security if, for example, mobo manufacture can put a jumper or something in that would by pass secure boot. This way, people who are the weak link in security, who wouldn't know what a jumper is, stay "secured" (as secure as you trust the vendor from whom you buy the hardware has not tinkered with it), while the rest of us who actually has a clue, can go on doing what we have been doing: actually owning the hardware we pay good money for.

Comment Re:Faster than light travel? (Score 1) 683

Interesting.

But my question still stands - would a particle with negative mass be bound by speed-of-light restrictions? Or, alternatively, could manipulation of the Higgs field result in imaginary mass as well?

Yes it would. A particle with negative mass is just a particle that if you exert on it force to the right, it will accelerate to the left. A particle whose velocity vector and momentum vector are in the opposite direction. Besides this vectoral reversal, relativistic dynamics applies just as well to it as particle with positive mass.

Indeed, in semiconductor physics, it is perfectly acceptable mathematically to treat absent of electron on the valence band (called hole) as having a negative effective mass and negative charge. It is just more convenience and intuitive to instead consider hole as a pseudo particle with a positive mass and a positive charge. So that's what we do. The same physics is mathematically identical to that of the Fermi sea of the Dirac equation. Negative mass is not too terribly interesting in this respect, unlike the tachyon, which has imaginary mass.

Comment Re:sudden outbreak of common sense (Score 1) 305

There should be some punishment for misusing patent law and the ITC/courts like this. Perhaps the court should ban the plaintiffs competing product for 6-12 months when an allegation is found to be false...

How about put up X amount of money for the review period? Some fraction (half?) of what the alleged infringer expects to make in that period. You get your money back if patents are upheld, otherwise, you pay for your false allegation.

Comment Re:Silver Lining (Score 1) 696

At which point Samsung will have $95M but will have to re-start their advertising campaign, essentially re-launch the product, and target a market that has just bought a bunch of competing products - among which iDevices from which Apple stands to gain a lot more through e.g. app store purchases, third party products such as docks that use licensed tech, etc..

I would love to see them use that money and make a commercial that say: "Buy Samsung, because the other guy is a complete doushbag."

Comment Re:Gold (Score 1) 400

Gold: [x] Cashless

A physical object that is commonly-agreed upon medium of value change. That's cash by definition.

[x] High-Value

By artificial scarcity. Quote from Warren Buffett:

"[Gold] gets dug out of the ground in Africa, or someplace. Then we melt it down, dig another hole, bury it again and pay people to stand around guarding it. [Gold] has no utility. Anyone watching from Mars would be scratching their head."-Harvard, 2008

[x] Anonymous

Right, because moving a couple hundred pounds of the stuff for any substantial purchase can easily be kept secret...

Comment Re:Nvidia has said this all along.. (Score 1) 497

90% of the code used in the Linux driver is shared with the Windows driver, that was a claim made by one of their developers on their forums I read a year or so ago. Open sourcing the code is out of the question as all of that code isn't just from internal employees, as getting everyone who has written lines of code to agree to their code being available under a open source licence would be a huge task. Documentation would be great, there's the issue of IP though there. To be fair to Nvidia, they actively support Linux, I've used their cards for years and have never had much of an issue, in the old days, it was just a matter of shutting X11 and running their installer, it built the kernel module and you were good to go. Nowadays every distro I've used has the packages ready out of the box. I think Linus pain comes simply from running pre release kernels and expecting them to be supported before their even released! Nvidia normally provide patches in these situations anyway so I don't understand what Linus really wants them to do.

Until one day, they decided that your card is too old to support. By that point, nouveau would probably have decent support for basic 3D primitive, but by no mean optimized. For really old card that neither driver support, the user is screwed.

Comment Re:Malcolm Gladwell is a Pseudointellectual (Score 1) 679

The other reason the Chinese are good at math is because they don't have excuses. In China you can't say "Oh, I'm just not good with numbers" and expect to be taken seriously as a person. That's just not a cop out you can use. Meanwhile every American kid who didn't study enough and forgets some algebra formulas just figures "Hey, I'm just bad at math" and then goes and does a literature degree or whatever.

Is that base on your culture stereotype? In fact, in the Chinese education system, there is an explicit method of claiming that you are not good with math and science (and vice versa): in high school, a few years before the all-important college entrance exam, the classes are segregated into "wen-ke" and "li-ke". "Wen-ke" or literary class, emphasizes literature, history, political science and has a very light role for math and science. "Li-ke", logic classes, emphasizes the opposite subjects. Students are taught equally everything upto that point. Afterward, they concentrate on their area of studies. They even receive different consideration on college applications.

Indeed, there is a debate in the Chinese blogosphere now that some people, most journalists and authors who came from a "wen-ke" background, claiming that mathematics more advanced than middle school is useless and the blogs of scientist and engineers who claim the opposite.

Comment Re:Malcolm Gladwell is a Pseudointellectual (Score 1) 679

He ignored how studying calculus concepts like differentials and integrals at a young age (I think around junior high age) is the norm in China,

I will tell you categorically this is not true. I have Chinese textbook from 1-12 from a few years ago. trigonometry is what they go up to. Now, some older textbook from the early 80's (right after the culture revolution) did include calculus, but that was dropped in the 80's.

What I think do make the point you are trying to make largely valid is that Chinese student teaches what in the state we called Advanced Algebra by end of middle school (equivalent to 9th grade here since they have 6 years elementary school). The three years of high school essentially consists doing a LOT of exercises and prep-exam in preparation for the "gao-kao", the be-all college entrance exam. Look at China, South Korean, and Japan is you wan to see what standardized exam will turn your education system into. It is horrific.

Check out this article (in Chinese, but the picture speaks for itself): http://bbs.gdou.edu.cn/home.php?mod=space&uid=73378&do=blog&id=3436 The picture showcases a girl who recently finished her gao-kao with all the prep-exam she did in high school, every single one of which she kept. I think there are some rumor that the picture is actually a fake, but many on wei-bo (Chinese twitter) are echoing that it is not an exaggeration.

Comment Re:Oh waaa (Score 2) 166

I agree with your larger point that the traditional lecture style education is not good for everyone.

You may have suffered through traditional "higher education," but a new generation is learning a different way. Some of them are learning it better. We have made tremendous progress in many fields, why do we not study the process of academic instruction just as intensely as, say, nuclear physics?

We do. Some physics department, like the one from which I got my PhD, offers research in physics education as a PhD program. Student do research and gather data in classroom and apply the same statistical analysis techniques to asset the effectiveness of certain teaching techniques. Unfortunately, they usually do not get the same respect in the department as more traditional thesis topics. Usually there are a few (<5) faculties out of the whole department who actually care about physics education that they accept student in these topics. The APS is starting to recognize it as a specialty, but only treats it as a "special topic". We are getting there.

Khan Academy is good, a lot of people use those videos!

--cej102937

When I was TA-ing to pay my way through my degree, I recommend KA to many intro physics students. Then after talking to a lot of them, I find the result to be kind of mixed. Some find it helpful, other not and it somewhat surprised me that it did not correlated with grade. The worst case is that some thinks it's helpful when in fact it did not (and you can tell by asking conceptual questions that is only a twist of the problems covered in the video). Totally anecdotal. However, fellow students who actually engaged in physics educations research tents to agree that a one way dictation, abet using video, do not help student who lacks a good conceptual foundation to begin with. And this guy, who also did a PhD in physics education, also agree. I do think the world is better with those video than without though.

Comment Re:Until you can prove them wrong (Score 1) 1359

From GP:

If I'm wrong, I loose nothing. If I'm right, you lose everything.

It is not inconceivable that the so-call god rewards conviction and the full exercise of the intellect that he bestowed as the ultimate virtue? The way I see it, religion, Abrahamic religions in particular, is precisely the kind of quick-and-easy way for a deity or deities use to rule out dumb and uninquisitive people . Promise people reward in the unforeseeable future and see how many people open their wallets. Not much different from your run-of-the-mill direct-marketing scheme. Probably what I would use if I were an omnipotent god. People who believes they are right without evident lost the ability to investigate whether it is so.

Comment order of magnitude (Score 1) 217

The diameter of the sun is 1e9 meters. The distance to the closest star, Alpha Centauri, is about 4e16m (40 lightyears)...Let's put that in context:
Suppose the sun is the size of a grain of sand, say 1mm (1e-3mm), the distance to the nearest grain of sand is 40 kilometer. So a collision between galaxies is basically collision between empty spaces...

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