Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×

Comment Re:waste of time (Score 2) 380

No, technically X/0 equals +/-infinity only if X is non-zero. If X is zero then you need to do further analysis of the calculation to determine the relative sizes of the two zeros at the discontinuous point (limit calculus). Depending on the nature of the calculation from which the zeros emerge the limit at the discontinuity zero could converge to an infinity, 0, 42, 7/9, or any other value. And there's no guarantee that there is a well-defined answer at all - for example sin (1/x) oscillates between +/-1 infinitely fast as x approaches zero.

Comment Re:waste of time (Score 2) 380

Nonsense. You are dividing, and the result is undefined - there are no remainders in division except in gradeschool arithmetic where decimals are considered too difficult (in real math the concept is known as modulus, and is a conceptually independent operation from division). Basic first-week calculus can usually even tell you what the result would have been if your calculation didn't have a discontinuity in it - just perform the calculation at shorter and shorter intervals from the discontinuity to determine where the value converges from either side.

0/x as x -> 0? 0/1 = 0, 0/0.1=0, 0/0.000001 = 0. Therefore the value at the limit is 0
1/x as x->+0? 1/1 = 1, 1/0.1 = 10, 1/0.0001=10000, and the value at the limit converges to +infinity (or -infinity if you approach -0).

Comment Re:Yeah sure (Score 1) 371

He's saying that a byproduct of these people who are deemed (by you)

Deemed by me?

Go bad and read it--unless you're just trolling.

I went back and read the (score:-1 Troll) post again. It still says:

When this happens and there aren't enough people serving their country, they enacts this thing called a draft in which you are forced to join the army and if you do poorly, you end up being fodder for the people more likely to survive to find cover behind while they kick ass.

Sorry still sounds like it's deriding the "fodder" (I'm going to assume that he doesn't actually mean for them to be eaten) and glorifying the cowards hiding behind them.

However should you take some time to produce examples, give the context, explain it, reference sources, argue details, etc. then you may even produce convincement for those noble savages to hold-off on aiding the MIC with their sensibilities of duty and patriotism, and more importantly strength of body, to instead turn such principles towards the demand that the MIC actually serve the ideal of nation which endears them to patriotism.

You really seem to attributing to me a lot of things I didn't actually say. I makes it hard to even understand what you're talking about.

Comment Re:Why is helium the new answer? (Score 1) 183

Well sure, and we're already doing so on a small scale - through solar, obviously, but also through almost every other energy source on the planet - solar energy being the ultimate source of most stabilized energy sources on the planet, depending on your reference timescale (biofuels, fossil fuels, even fissionables - though I suppose those are a product previous suns rather than our own)

But the *power* has no waste products - it's the *reaction* that has the waste products. Unless you're harvesting hydrogen you will get no waste

Or so sayeth my long-day pedantry.

Also, I rather have a problem with helium being called waste. Admittedly it will eventually build up to sufficient levels to begin the destruction of our star, but in the meantime (and for a *long* time thereafter) it's a viable fusion fuel in it's own right, and a necessary precursor to such delightful elements as carbon and oxygen, to which I feel a special bond. (covalent, if you must know)

Comment Re:Sudden outbreak of common sense (Score 1) 276

I couldn't swear to it (shame on me, I've let my civics get rusty), but I believe it has historically been accepted to apply to all people on US soil. ("it" rather than "they" because the BoR is simply a name given to the first ten Constitutional amendments, which were ratified en-masse shortly after the Constitution itself was ratified). Hence the existence of Guantanamo bay, a place to keep prisoners without granting them all those annoying rights that they could use to contest their incarceration. Except that, IIRC, the Supreme Court ruled a while back that since GB is under US jurisdiction normal laws still apply (much like an embassy legally being in the jurisdiction of the foreign nation rather than the host.), though since it's a military base I believe they get some leeway.

Comment Re:Doesn't anybody read their Bible anymore? (Score 1) 49

I was not aware that the bible had anything whatsoever to say about life elsewhere in the universe - in fact I seem to recall that it has nothing much to say about anything else in the universe even existing. Almost as though it was written for (or by) humans who had no knowledge of, or use for, anything not directly related to their home planet.

Comment Re:Sudden outbreak of common sense (Score 1) 276

And don't forget the tenth amendment, which even more clearly states that the United States government has no powers except those explicitly listed in the Constitution:
The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.

Funny how those last two amendments get overlooked so often.

Comment Re:Is unix the last operating system? (Score 1) 257

Umm, I think your sarcasmatron needs to be realigned. Are you trying to suggest that operating systems will become obsolete?

And I think it should be obvious that most abacuses will be made of jade or other precious stones, metals, and woods. Similar principle to my old ivory and hardwood slide rule -there's not much point keeping around obsolete technology except for decorative purposes. Though I suppose that could change if abacuses were adopted in the classroom - they may not be terribly useful compared to a calculator for doing math, but I've heard some good arguments that the principles on which they operate are transparent enough that they can be quite useful for learning arithmetic - ban calculators in math class until middle school.

Comment Re:Thanks for the tip! (Score 1) 448

Actually I think we might eventually get flying cars, we just won't be allowed to drive them ourselves. Instead they'll be equipped with extremely competent autopilots - I would imagine that the AI behind a mature driverless car could be fairly easily extended to navigate the much more forgiving and pedestrian-free aerial environment. Especially if you assume that virtually all other air traffic is similarly controlled, and unlike with human operators every vehicle obeys all traffic rules to the letter except in the most extreme emergency situations.

Comment Re:Thanks for the tip! (Score 1) 448

In fairness you *can* collect usable amounts of ambient radio energy - cover a few acres with antennas an you can power your lights no problem, so long as you don't have too many. And RFID tags are completely built on the idea that you can power a transmitter on nothing more than a focussed feeder signal, and these things are big enough to collect probably 10-100x the radio energy of your average RFID tag.

The problem of course is that they're claiming to be able to send a relatively high power Bluetooth signal detectable at 60m by non-specialized omnidirectional hardware without a feeder signal. I'm no expert, but I would imagine that such a thing *might* be possible, especially in a radio-loud urban environment, but only if you assume that basically the whole tag is a capacitor, and it only transmits for a few seconds between multi-hour charging periods.

Slashdot Top Deals

"In matters of principle, stand like a rock; in matters of taste, swim with the current." -- Thomas Jefferson

Working...