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Comment: Re:what? (Score 2) 54

by HiThere (#49764293) Attached to: Universe's Dark Ages May Not Be Invisible After All

Higher energy photons are distinct from lower energy photons in having a shorter wavelength. They both travel at (about) the same speed. Presumably in a true vacum they would travel at exactly the same speed.

Thus blue light is more energetic than red light, and has a shorter wave length. You measure the energy of the photons by absorbing a certain number and measuring the change in velocity or temperature of the thing that absorbed them. (Usually this is done by some sort of photocell arrangement were the absorbtion translates into electron volts, and that's what you actually measure. I believe that this has been done down to the single photon level, but I'm not sure.)

Comment: Re:Sudden? (Score 1) 265

by HiThere (#49759627) Attached to: ESA Satellite Shows Sudden Ice Loss In Southern Antarctic Peninsula

Money is not equivalent to free speech, no matter how you twist things. I do not accept your arguments.

It is worth noting that one of the arguments which I read to be against the "free press" is the statement "The power of the press belongs to the man who owns one.". I don't fee this is sufficient grounds to be against freedom of the press, but it certainly highlights the limitations on its desirability. It's a way that only empowers the wealthy, as opposed to free speech which is available to the eloquent, whether rich or poor. And that highlights a limitation on the desirability of free speech. But the constitution made the best of things, but requiring *both* free speech and the free press. It would be reasonable to equate money with the free press, but not with free speech.

Comment: Re:Do people really take this risk seriously? (Score 3, Interesting) 229

by HiThere (#49753819) Attached to: Asteroid Risk Greatly Overestimated By Almost Everyone

A large impact in a shallow ocean area might well in every human dying within a decade. Most immediately. It would also first steam clean the planet, and then set an ice age in motion.

Now I'll grant that this is unlikely in any century, less likely by far, in fact, than that we'll do the same thing to ourselves via war or some other means. (War seems the most likely, but it's not the only contender. An escape from a biological warfare lab is a possibility. I'm not counting natural evolution as "doing it to ourselves", but it's happened to other species. In fact it is currently happening to a large number of amphibian species, some of which have already gone extinct.)

But I do consider asteroid impacts worth worrying about. Not worth obsessing about, however, as they are a bit down the ladder when it comes to humanity exterminators.

I also question his method of assigning proper degree of concern. And the reliability of his assertions. E.g. he claims that only one person has ever been hit by a meteor, but there's no evidence that that's true. He should have said only one person is known to have been hit by a meteor. But how many people in remote areas of the planet could have been hit and the reason for death, or even the fact of death, not officially acknowledged? And clearly nobody could cite an instance before around 1700, as even the existence of meteors was denied. So you need to ask what is the probability of someone being hit by a meteor and the fact being officially recognized. This is a quite different question. He performs the same type of factual manipulation (less obviously) in a few other places.

That said, it's not a major concern while other concerns rate higher. But a species ending event is worthy of particular concern over and above the concern over the individual lives lost, as you also need to consider the future lost, and not just a few personal futures, but all human futures.

Comment: Re:in RE: Privacy, not Ownership (Score 1) 375

Well, he clearly owns the copyright on the photographs, so if anyone wants to contest that they are SOL. The privacy concern is legitimate if and only if the pictures were taken in an area where there was an expectation of privacy. A sporting event with people in the stands cheering certainly doesn't seem like a private event...

Does he? Who's equipment did he use? His own? the schools?

If he used his own, then yes I'd agree he fully owns everything, even if he was using his equipment on behalf of the school newspaper/etc.

But if he used the school's (except by permission for his own personal use, etc), then there's a case that could be made that the school owns the work. It's harder since he likely wasn't PAID for it (which is typically required) but the case could be made.

Comment: Re:It's the same in professional sports. (Score 1) 375

Most professional sports teams copyright their games. Even tweeting the score can get you in trouble. I guess this is no different. I'm not sure why the IRS would be involved though. Do they handle copyright enforcement?

There is nothing legally preventing you from tweeting the score, and they can't prevent you from recording or photographing anything (legally) unless you otherwise agree - usually as part of buying a ticket, the ticket being the contract; however, it could be argued that the contract is too one-sided so it non-enforceable.

They can control what is broadcast via the networks to the degree that is it not over the public airwaves, which per FCC are public and anyone can record.

Comment: Re:Unless it was part of a contract..... (Score 2) 375

While all that's true, he didn't have a release from the athletes to post their likeness online. That's usually part of the standard parent signature form in athletics (I assume - I'm no athlete) but that would only affect photos taken under authority of the school. So the school has no standing, but the students and their parents might.

Doesn't need one at a PUBLIC event. He only needs it if doing photos in private, restricted areas - e.g the locker room.

Comment: Re:Root cause = speed over security (Score 1) 71

by HiThere (#49738759) Attached to: 'Logjam' Vulnerability Threatens Encrypted Connections

OTOH, using "roll your own crypto" is nortorious for individualized holes and weaknesses. It does tend to mean that the "one size fits all" means of breaking the code won't work, however. Or at least may well not work.

That said, if you have good enough communication to share custom crypto programs, you may be better off using a one-time that can't even theoretically be broken. But it does require a good source of random numbers (e.g. amplified triode vacum tube with no input so you're just amplifying noise). Such things are reasonably easy to build, but for some reason they aren't normal computer accessories. (Video cams watching a flickering flame are another good source.)

But custom crypto is hard to do correctly. AND it requires good communications to standardize the programs. So if you have the communication, a one time pad is better.

Comment: Need? (Score 4, Informative) 298

Need to know? None. All critical skills remain the same - communication, writing, math.

Should know? Basic familiarity, tools, and typing so that they can use the tools available via technology when its appropriate to use, and the knowing when to and when not to use it.

Technology does not magically solve problems. If you don't know how to write, using Word or OO/LO Writer isn't going to help you and it won't necessarily make you a better writer either. It's not different than a calculator making you a better mathematician versus just helping you along - you have to know how to do the math either way and when to use which formula, something a calculator can't teach you. All these things are beyond the purview and ability of technology.

So honestly, you could remove computers, the Internet, etc from the classroom and probably be more effective in teaching the requisite skills to move through life. What technology will be used in life will change over time and teaching it in the classroom won't change that or better prepare students for what technology they will actually use in the work force and life - exception being the specific vocational training for vary specific vocations and the requisite technology associated therein, even then an automotive mechanic should be able to diagnose a vehicle without a computer, etc.

Comment: I am not able to find that disproof (Score 5, Insightful) 263

by HiThere (#49721239) Attached to: Book Review: The Terrorists of Iraq

The assertion that the infinite monkeys theorum has been disproved seems incorrect. Searches for the named scientist in conjuction with monkey also fail.

IOW, I suspect the entire article is garbage. I will admit that this is based on the fact the the only easily checkable statement appears to be factually incorrect, but if it's wrong where you can check, what should you believe about the places where you can't check?

Remember, UNIX spelled backwards is XINU. -- Mt.