Follow Slashdot blog updates by subscribing to our blog RSS feed

 



Forgot your password?
typodupeerror

Comment Re:They don't want to get tax reform petitions (Score 0) 153

Greatest economic boon in history *while simultaneously driving the biggest threat to humanity's existence into the ground*.

              Assisting the poor? Are you really that ignorant? How have the poor ever been assisted by government spending? You know when the US povertry rate went from a steady decline to a flat spot, then a rise? 1965 or so - coincident with The Great Society of social programs. Social spending is a net negative to poor people because of the obscene waste/overhead that takes money out of the economy and wastes it on administration.

        Liberals care so much about poor people, they create as many as possible.

Comment Re:When *police* are in danger? (Score 0, Troll) 318

Right. And I am going to get that you are an imbecile.

  Have you ever wondered about *why* white people from the suburbs are successful? It's not the "white power structure" or racism. It's that we aren't programmed to fail by being told nonsense about how the world actually works.

      I know your handlers have devised an automatic and senseless way to dismiss it, white privilege. Grow the hell up and think for yourself, or continue to fail.

Comment Re:When *police* are in danger? (Score 0, Flamebait) 318

On the contrary - the liberal and PC education/brainwashing system is churning out sociopaths like you.

    Here's a clue from a responsible adult - if you go into the world and treat the police like an enemy, or teach your kids the same - you are going to be in for a very rough time. Not because of the police - because of your own actions and statements.

Comment Re:A slump in what? (Score 1) 347

The other responses explain part of the issue, but a critical problem is that when one plant slows down, they all have to slow down to avoid creating a significant phase difference. You can only tolerate the tiniest of tiny out-of-phase generation between any two plants, or you end up really blowing something up.

Comment Re:She's a witch! (Score 2, Insightful) 458

My wild guess is for Christianity to have slowed scientific progress by ~1500 years.

          During Christianity's existence, we have gone from the vast majority of the human population living at a subsistence level and using beasts of burden like they did for the previous 10,000 years, to creating economic systems that results in growing far more than enough food to feed everyone, raising the standard of living by orders of magnitude for virtually everyone, putting men on the moon, stamping out slavery and indentured servitude, wiping out most of the omnicidal maniacs that plagued humanity from the start of the agricultural revolution. The only remaining omnicidal maniacs left are those who actively see this tremendous advancement as a threat to their psychotic vision, which it is.

          So, tell me genius, the vast, vast majority of the founders of modern science were Christians, Newton and Descartes being particularly notable for their rather extreme views even in their day. Why is it that modern keyboard warriors who have accomplished *nearly nothing* in their lives aside from snarky comments about other people on the internet feel in any way qualified to pass judgement on the world's largest religion?

Comment Re:Citation cliques shouldn't be counted (Score 4, Insightful) 91

It's perfectly clear why this is. You *have* to publish something, whether it has wider merit or not. So you end up with a large number of probably correct and probably original paper, that nonetheless don't advance the state of the art and don't get any cites. There's a very strong disincentive to wait until you have something genuinely unique and innovative.

Comment Re:Fine (Score -1, Flamebait) 203

Fuck you. We have already bettered the world by defending it from every fascist despot that came along in the 20th century and vastly raised the standard of living for the vast majority of the world. All the while, one bunch of mincing Euro-trash whiners bleated on about "cultural imperialism" while their economies were freed from having to defend themeselves and they routinely backed up the dump trucks to the IMF and other US-backed funding sources for their weekly infusion of those horrible US Dollars.

Comment Of course (Score 1) 167

If I was dumb enough to rent my house out to strangers, I would certainly want some sort of monitoring to keep them from, or at least be able to charge them for, trashing it. I don't think you should have an expectation of privacy when you are guest in someone else's home.

      Of course, I would never even imagine doing something as foolish as renting my house out to strangers that I haven't checked out and trust.

Comment Re:Now THAT is amazing (Score 4, Informative) 127

It's not less than a millisecond, I think the minimum on-time is 15 milliseconds (you can go lower but you get disproportionate amounts of error).

          It's an electrically-driven valve, a skinny tube with an injector at the end, which is embedded in the catalyst. When the fuel is released, it squirts out the injector and onto the catalyst. This causes it to decompose into steam (think putting hydrogen peroxide on a cut in your skin, but vastly more energetic). The steam is then accelerated out a nozzle, creating thrust.

        As far as rocket engines go, it's not very efficient, and typically you have to heat the catalyst bed with a heater to keep the thermal shock of a firing from cracking the catalyst into dust. That, and development of "varnish" in the (tiny) injector passages - baked-on crud like a baking pan, is what causes them to wear out. One or both of those is apparently a factor in degradation of the prime attitude control set.

          It's not terribly good for attitude control purposes due to the limited pulse life in the "fire once, wait 3 days, fire again" duty cycle, but it has the advantage of being very small (0.15 or so lb) and very inexpensive (I think something like $20000 a piece now, much less at the time) and has an extraordinary number of flights on it.

Comment Re:Now THAT is amazing (Score 4, Interesting) 127

For these thrusters (which I think are Aerojet 0.2-lb monoprop, MR-103 series), there's nothing to degrade from mere age or vacuum, and the environmental thermal cycling is negligible. So it is not that surprising that they still work. Using them is another story, and pulsing certainly does degrade them (eventually - hundreds of thousands of pulses).

      It's not terribly unusual to switch to redundant equipment after decades and have it work. Essentially we rely on that working, and I have seen many examples of it working perfectly well. Vacuum is a very good storage medium for anything that does not outgas. Radiation degrades solid-state electronics and power supply components (particularly high-voltage components) are somewhat prone to degrading from age or outgassing. Longest I have personally been involved with is a prime flight computer that was believed to have failed on the day after the launch that was turned on 32 years later as a final test, and that worked fine for at least a few hours. But other components were switched to (of necessity) after ~20 years fired right up and worked fine, showing the same parameters as the day we turned it off.

Slashdot Top Deals

Imitation is the sincerest form of plagarism.

Working...