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

 



Forgot your password?
typodupeerror
×

Comment Re:Does the job still get done? (Score 2) 688

If you can't trade your labor for food and people feel it's immoral to give you food, things will get very bad for a period of time.

Then, like the luddites (who saw they were screwed- requested training on the new machines and didn't get it), most of the losers will starve to death homeless and then 20 years later everyone will refer to them the way we refer to luddites today.

It's a fundamental challenge to capitalism.

In the short term- fewer jobs will mean capital requires even more hours of those who do have jobs and that means even higher unemployment.

Comment Re:Hmm (Score 1) 81

I'm not talking about ideals, or tourism, or saving the world, or finding anything "up there", or anything of that nature (did you even read what I wrote?). I'm talking about the sheer awesomeness of, at your whim, shooting up a 1500 tonne rocket into orbit then landing it on an automated oceanic platform. It's like playing Kerbal with a real-life 70-meter tall rocket. Why don't more billionaires do stuff like that if only just for the fun of it?

But clearly you have an axe to grind against something for some reason, so I'll let you get back to that wheel.

Comment Hmm (Score 4, Interesting) 81

Why don't more billionaires do stuff like this?

I'm not saying do it "for the benefit of humanity", or even "for a profit". Just simply.... if you have billions of dollars, and you want to spend it on something, what can you possibly spend it on that wins in a sheer awesomeness category as "shooting a gigantic rocket up into orbit and then landing it on a robot boat in the middle of the ocean"? That's like a freaking video game, played with 1500 tonnes of aluminum and highly combustible fuel.

Comment Re:Pretty sad (Score 1) 156

Back in the day, Dr. Dobbs was giving the world invaluable stuff like Mode X. Your average programmer had to be a lot more connected with the hardware, and working with the hardware was somewhat of a black art. Nowadays there's still some black art stuff out there for getting good performance (even a lot of simple, important stuff is inexplicably obscure... I bet you that 90% of C/C++ programmers don't even know what the restrict keyword does, for example), and you still see the occasional inner loop of some high performance code use assembly, but that's not the general case.

Comment Re:Anti-Aging is a Fraud Magnet (Score 4, Informative) 175

Usually most aging-preventing discoveries cause cancer. For example, the p21 knockout mice that gained almost salamander-like regeneration also gained a high tumor rate. Usually processes in your body involving the stopping of growth and areas dying off are things that help prevent cancer from forming or growing.

Comment Cautious? (Score 1) 82

Scientists involved in the discoveries have been cautious, saying that the features could also be floating debris or bubbles

Um, wouldn't those things be even more awesome? Trust me, I won't be disappointed if there's geological activity causing bubbling from under the seas (heat plus organics!), or if there's floating objects (cryopumice / super fluffy snow? organics foams? something else? what the heck floats on methane, after all?)

Comment Re:Is Titan slowly drying off? (Score 1) 82

Probably not, but the hydrocarbon cycle on Titan is still very poorly understood. I really look forward to the next Titan mission, but unfortunately everyone's obsessed with Europa so the next launch window is almost certainly going to be missed and it'll be decades before a new spacecraft gets there. The presence of seas and the low gravity plus a dense atmosphere leaves one with a plethora of great exploration options (all nuclear powered, of course, there's essentially no sunlight): hydrogen blimp (it's noncombustible on Titan) (with or without propulsion), hot air or hot hydrogen blimp (it takes surprisingly little heat there to get lift), hybrid blimp / lifting body aircraft, helicopter, fixed wing aircraft, tilt wing aircraft, boat, hybrid aircraft / boat (with any other aircraft design), etc.

My favorite design (although probably the most expensive) would be a tilt wing aircraft with floating landing gear for either surface or sea landings. You get the high speed travel and freedom of motion of a fixed wing aircraft so you can cover the whole planet, but you can land anywhere, do science for a day or so while you recharge your flight batteries (so you don't need a huge RTG or reactor), then take off again for the next location. The view from the air (whether optical or radar) of the previous day's hop would be used by the ground team to figure out where to have it go for the next day.

Comment Re:yeah right (Score 4, Interesting) 82

They worded it poorly, as the seas are methane, which is not oil - on earth it's the prime component of natural gas, so the better term would simply be "hydrocarbons". That said, hydrocarbons do not need life to form - just hydrogen, carbon, and a shortage of any oxidizers that could break them down into the lower energy states of H2O and CO2. Even longer chain hydrocarbons can form naturally - on Titan, that happens in the upper atmosphere by photochemical reactions.

It's important not to overgeneralize Earth to other celestial bodies. For example, you can even have bodies with oxygen atmospheres without life. We see this (to a tiny extent) on Europa, which has an extremely thin oxygen atmosphere from photolysis of water ice. It's quite possible that in other systems there could be an environment that produces a denser O2 atmosphere through a similar process - or through other processes, both known or not yet conceived of.

The universe is a weird place. Think about what a tidally locked rocky planet orbiting close to its parent star would experience. I read about one planet whose night side temperature was expected to be earthlike but with a hot side temperature of thousands of degrees. So think about it for a second, what's going to happen? The hot side is going to constantly boil off, potentially even to plasma, be circulated around to the cold side, and then rain down rock. Rockstorms. Depending on the properties of the rock, the rate of boil-off, the rate of redistribution, and the properties of the atmosphere, it could be anywhere from dust to large chunks, and anything from volcanic-like ash to pele's hair (rock wool) to breccias to gemstones. Lightning would be tremendous, like in some volcanic eruptions. Given the amount of energy at hand, winds in storms could get up to ridiculous intensities. The redistribution of mass is going to cause a continual planetary slump from the cold side to the hot side, so one would expect frequent, super-intense earthquakes and frequent volcanic eruptions. You might get some intense magnetic effects via an exceptionally strong dynamo effect, plus the star's magnetic field itself would be orders of magnitude stronger. Aurora could be intense enough to light the sky on the cold side and power photosynthesis. Aurora could be intense enough to light the sky and power photosynthesis on the cold side. Liquid water would be stable in certain places (if it managed not to be all blown off over geological timescales, that is, the planet would have to be large), but would be thrashed about to biblical extends by the other aforementioned processes. If the magnetic fields are strong enough, flowing saltwater may even be visibly dragged by Lorentz forces and build up charges when constrained. The dissociation of the rock on the hot side would free up oxygen into the atmosphere, which would not be all immediately consumed on the cold side (some oxidation reactions are slow). And on and on. So it's potentially possible to have livable, breathable planet with a soil made from regular rains of rock wool and gemstones, lit by aurorae and in a constantly undergoing one catastrophe after the next.

Comment Re:Yeah, sure, any day now... (Score 3, Insightful) 65

I.e. if Comcast uses excess profits from everywhere else to provide ridiculously low priced service (aka walmart breaking into a new market until the competition goes out of business).. then Tucows can't win.

I think the lines need to be built by and maintained by one company or by the municipality and the service provided by competition.

There are good and bad points to excluding customers. It's ridiculous to run a 20 mile fiber to one person's house or even a group of five or six houses and charge them the same as everyone else. If they want cable- they should live with the rest of civilization.

OTH, left to their own devices providers will cut "less" profitable customers over "highly profitable" customers. Which doesn't work with something that is basically a public utility.

Comment Re:Duh. (Score 1) 222

Of course, it's physically impossible for a die to be 100% completely unbiased. Yet, we carry on as if it was.

Of course it is. And I was tempted to reply to khallow's observation that "nobody knows what unbiased dice roll like" to that effect --with the addendum that we will presume two perfect platonic dice (even though, by definition, there could only be one :). But since he wasn't talking actually about dice that would have been disingenuous, wouldn't it?

Actually for present purposes we don't even need to assume perfect dice. Even with physical dice, adding placed weights is liable to alter the frequency at which certain numbers come up and calculating the influence those weights have on any individual roll is impractical.

Comment Re:It's not difficult to erect a Strawman (Score 1) 222

OP is also saying that they're waiting on this one, meaning show me the drastic increase in Katrina level events

But OP would be somewhere between oh ... 50 to 500 years too early to make that statement, had they genuinely been talking about in increase exclusively of events of which the frequency is measured in centuries. If OP is honestly "waiting," (after less than a decade), they could not have had the point you raise in mind.

You're using models to say that overall hurricane frequency should decrease. But OP is saying the frequency of Katrina-level will increase.

I've already granted you, that ignoring the connotation and context of what was being said, the strict denotation of "Katrina-level events will ... increase in frequency," is not inconsistent with predictions of lowered frequency of tropical storm formation. Obviously.

However I disagree that OP intended to restrict their observation to that extent, or if they did, it is a strikingly disingenuous way to pose it. I put it to you that the statement "climate researchers [are] claiming Katrina-level events will drastically increase in frequency. (we're still waiting on this one)" is not the clearest way to convey the current expectation that global warming should lower the frequency of hurricane formation. In fact it is liable to convey the opposite meaning.

The two of you don't agree, but your point doesn't rebut their position

If my point doesn't rebut their position then how do we disagree? ;)

Comment Re:Does Denmark... (Score 1) 191

Only half of Americans typically turn out to vote in binding presidential elections. 72% of Greenlanders turned out to vote in the *non-binding* referrendum on independence. I'd say that's some pretty serious interest. Even if every last Greenlander who didn't show up didn't want independence, they *still* wouldn't be in majority.

Comment Re:Does Denmark... (Score 1) 191

This is false. Greenland's GDP is 2,3 billion USD. The subsidy is under 700M USD. They would lose about a third of their GDP if the subsidy cut off. On the other hand, they would also stop *paying* about that much in taxes to Denmark.

People in Greenland voted overwhelmingly to terms that called for eliminating the subsidy, in exchange for Denmark butting the heck out of their land.

Slashdot Top Deals

You are in a maze of little twisting passages, all alike.

Working...