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  1. Re:and that's how we got the world of FIREFLY on Serious Economic Crisis Looms In Russia, China May Help · · Score: 1

    GDP comparisons:

    Major pro-sanctions players:
    US: 16,8T
    EU: 17,5T
    Japan: 4,9T

    Major anti-sanctions players:
    Russia: 2,1T
    China: 9,5T

    Just ignoring the whole fiat currency issue and controlling the global banking system which act as large multipliers, China is simply not comparable to the economic pressure being levied against Russia.

  2. Re:Morons should read some economic history on Serious Economic Crisis Looms In Russia, China May Help · · Score: 4, Interesting

    China's in this thing with Russia for precisely one thing: China. They're taking advantage of a weakened Russia to strike deals that they never would have gotten before. A good example is the "Power of Siberia" gas pipeline deal that they signed for a few years back. China's been trying for years to get Russia to bite at bargain-basement prices that leave almost no profit for Gazprom (perhaps even a slight negative that would have to be somewhat subsidized by the government's gas royalties), and Russia had been refusing. Then they sign the exact same deal they'd been refusing a few months ago and herald it as a great victory.

    China has Russia in an excellent position and is going to squeeze every drop of potential profit out of their bad situation that they can. And Russia will herald it as a glorious blow to the west all the way down.

    That said - even China's GDP doesn't compare to the sanction imposers (US + Europe + Japan + misc), all the leverage multipliers of global banking and fiat currency that the sanction imposers have aside. Even if China's goal was to break sanctions - which it's not - it's just not big enough, it's a third their size. And Russia a trivial fraction of that. And the multipliers of controlling the banking system and a fiat currency are very real. Throw trade into the picture, forget it - Moscow is closer to Newfoundland and Liberia than it is to Beijing. There's a giant barren wasteland between the two. They have a border but it's more of a barrier than a facilitator for trade.

    As the very article linked by Slashdot put it:

    "In the current conditions, any help is very welcome," Vladimir Miklashevsky, a strategist at Danske Bank A/S, said by e-mail. "Yet, it can't substitute the losses of the Russian banking system and economy from western sanctions."

  3. Re:My sockets are made of high quality steel on NASA 'Emails' a Socket Wrench To the ISS · · Score: 1

    The difference with a 3d moulder being that, instead of taking a couple hours to 3d print a mould, then stop your production line and manually install the new mould in place of the old, then start it back up again you could effectively instantly form 3d mould (via microactuators or whatnot), do a 15 minute production run and make a couple hundred parts, then move on to mass producing the next part you need with no break in-between. Your "factory" could be in full production mode nonstop yet have a single line produce many dozens of different types of parts over the course of a day.

    When one thinks of space colony applications, it quickly becomes clear how essential such a thing will be. Even if you try to simplify, you're still going to have tends to hundreds of thousands of types of parts that will wear out with time. Let's say 100k unique types of of parts with a mean lifespan of 3 years - that's probably pretty realistic for a colony. That means you'll have to produce a new type of part every 15 minutes nonstop - with quantities varying from one-offs to the tens of thousands, depending on the part. Now think of how big your typical production line is and how much mass that means transporting from earth. Clearly, rapid production flexibility is critical! (same applies to all steps of the chain, including robotic assembly)

    (and yes, I know a single moulder or whatnot cannot achieve all possible production jobs, real production lines involve many types of materials and many processes... it's just an example of a common production mechanism :) )

    (as another side note, it should even be possible to make 3d moulds for metals. Carbon fiber cloth - or better, graphite fiber cloth - can tolerate temperatures hotter than many metals, but still has stretch and could be shaped with an array of actuators).

  4. Re:Plastic socket wrench? on NASA 'Emails' a Socket Wrench To the ISS · · Score: 1

    There are tons of online services already like iMaterialize and Shapeways - they do really excellent work.

  5. Re:Plastic socket wrench? on NASA 'Emails' a Socket Wrench To the ISS · · Score: 1

    They're saying that it won't break because that's not the purpose here. The description of the experiment is:

    In addition to safely integrating into the Microgravity Science Glovebox (MSG), the 3D Print requirements include the production of a 3D multi-layer object(s) that generate data (operational parameters, dimensional control, mechanical properties) to enhance understanding of the 3D printing process in space. Thus, some of the prints were selected to provide information on the tensile, flexure, compressional, and torque strength of the printed materials and objects. Coupons to demonstrate tensile, flexure, and compressional strength were chosen from the American Society for Testing and Materials (ASTM) standards. Multiple copies of these coupons are planned for printing to obtain knowledge of strength variance and the implications of feedstock age. Each printed part is compared to a duplicate part printed on Earth. These parts are compared in dimensions, layer thickness, layer adhesion, relative strength, and relative flexibility. Data obtained in the comparison of Earth- and space-based printing are used to refine Earth-based 3D printing technologies for terrestrial and space-based applications.

    The description is not "Print out a wrench so that crew members can change a rusty lug bolt". And yes, also from the description page, they include direct metal printing as part of their list of ultimate goals with 3d printing in space research.

  6. Re:Plastic socket wrench? on NASA 'Emails' a Socket Wrench To the ISS · · Score: 1

    3d printing has tons of applications here on Earth. However, this does not include general-case home 3d printing. Unfortunately, that's what most people here on Slashdot want to judge it by.

  7. Re:My sockets are made of high quality steel on NASA 'Emails' a Socket Wrench To the ISS · · Score: 1

    Indeed. 3d printing is not going to be suitable for mass production, for keeping a whole colony supplied in bulk components.** But for small specialty parts, it seems like an obvious answer to that piece of the equation. As the tech advances, it's just going to get more and more capable. I'm personally looking much forward to seeing whether a 3d printer that works based on thermal spraying would work out - then your production material choice would be almost limitless, pretty much any powder or small fibers you can think of that can be made to merge with the substrate through any custom combination of either temperature or velocity, and your balance between deposition rate and precision could be chosen just by rotating through nozzles of different sizes, none of the feed mechanism or material storage or anything. Your same printer could even paint, coat, sandblast, or pretty much any other post treatment on its own.

    ** Concerning not being able to use 3d printing for mass manufacturing: That is, assuming 3d printing as we think of it today, printing a voxel at a time. However, if you made a custom programmable 3d *molder*, where it forms a cavity of a programmable shape, that could be a different story - then you're approaching true mass production potential. Custom programmable stamping tools and other manufacturing processes could also be developed.

  8. Re:My sockets are made of high quality steel on NASA 'Emails' a Socket Wrench To the ISS · · Score: 1

    A lot of the slashdot crowd still thinks of 3d printers in terms of Makerbots and the like, the low end consumer-level home 3d printers. They really have no clue what professional level hardware can achieve. They'd be singing a different tune had they ever ordered 3d-printed parts from a professional 3d printing service.

  9. Re:Neville Chamberlin was not available for commen on "Team America" Gets Post-Hack Yanking At Alamo Drafthouse, Too · · Score: 2

    Germany was spending far more on their military during that time than Britain was. If Britain and France had stepped in earlier, Germany would have been totally unprepared and the war would have ended quickly. Not to mention all of the horrors of the Holocaust that would have been prevented.

    If Britain and France had managed to delay the war to "prepare" even more, say a few years, the Luftwaffe would have been dominated by jets, German ballistic missiles would have been longer range and more precise, and they might even have become a nuclear power. I really don't think this is the analogy you're looking for.

  10. Re:Never attribute to stupidity on Reaction To the Sony Hack Is 'Beyond the Realm of Stupid' · · Score: 1

    By now would be surprised if they don't have at least a couple Taepodong 2s that have at least a fair chance of a successful flight. They're not impressive as far as ICBMs go, but they are ICBMs.

  11. Re:Never attribute to stupidity on Reaction To the Sony Hack Is 'Beyond the Realm of Stupid' · · Score: 1

    Propaganda campaign by who? I think Singer needs to check his haughtiness at the door:

    the ability to steal gossipy emails from a not-so-great protected computer network is not the same thing as being able to carry out physical, 9/11-style attacks in 18,000 locations simultaneously. I can't believe I'm saying this. I can't believe I have to say this."

    Except, of course, for the fact that the prime suspect is the hand-picked hacker squad of the Hollywood-obsessed leader of a nuclear armed state with ICBMs, whose family's Hollywood obsession has gone to such extremes in the past as kidnapping filmmakers and forcing at them at gunpoint to make movies for them. I can't believe I'm saying this. I can't believe I have to say this.

  12. Well, at least Russians won't freeze to death this winter. They can use wheelbarrows full of rubles to insulate their homes. ;)

  13. That's not all that different from how he got started with Tesla. He had no intention of starting a car company (he already had SpaceX), he just wanted AC Propulsion to build him a copy of their t-zero - but they had no interest, even for a small fortune. But then they pointed him to this guy named Martin Eberhard who had this wild idea to commercialize the t-zero's tech base on a Lotus Elise body and was looking for funding... and thus Tesla was born.

  14. Re:Pretty sad on Dr. Dobb's 38-Year Run Comes To an End · · Score: 1

    g++ supports it with __restrict__. And if you're writing high performance code but not having support for the features of modern compilers, you're an idiot. In appropriate situations, the performance difference for using restrict or not is huge. Array-heavy tasks like image processing often get a 2-fold or more benefit with using restrict. There's very few places in the coding word where a single keyword can raise your performance that much.

  15. Re:Cautious? on Spacecraft Spots Probable Waves On Titan's Seas · · Score: 1

    And examples of these which could plausibly be on Titan are....?

    There's not much in nature that's that light.

  16. So you think massive yachts, ridiculous-priced art/jewelry purchases, palatial estates, gold-plated toilets and the like are a better use of money?

    Trust me, I'd have a LOT more fun with a giant rocket than I would with a gold toilet.

  17. Re:As with all space missions: on NASA Study Proposes Airships, Cloud Cities For Venus Exploration · · Score: 1

    I'll begin by stating that I I don't support such a mission, as I prefer robotic exploration. But this proposal isn't as extreme as it may sound - it's probably a heck of a lot easier than landing on a planet and taking off. It's only 640 m/s from earth escape to Venus (3/5ths that of Mars). Transit time is less and launch windows a lot more frequent. Venus offers very easy aerocapture. You don't have to deal with the randomness of the surface - your "landing" is a lot more forgiving. Your habitat is probably simpler, not having to deal with a surface (although there's a few potential complications that need to be studied, such as storms, and I don know the radiation level at the desired altitude). Keeping it aloft is easy - even normal earth air is a lifting gas on Venus. Solar energy arriving at Venus is double that of Earth. Nearly earth's gravity eliminates a lot of the uncertanties about skeletal and muscular wasting.

    One of the neat things is that a person could potentially step outside without any sort of special suit, just an oxygen mask. It's a "maybe", though, as there's a few complicating factors. It's 37C (100F) at the same sort of heights that it's about 600mb; for US analogies, it's Phoenix temperatures at Mount Whitney air pressures (lower or higher for both, depending on your exact altitude - you can choose). So it's not a perfect match - but probably tolerable. But there's two potential complicating gases: SO2/sulfuric acid and carbon monoxide. Breathing them is right out, but even long-term (hours at a time) skin exposure might be problematic at the given concentrations; it's not certain whether at these altitudes they'd be prohibitive. They would however make eye protection a must at the very least, the eyes are more sensitive to both CO and SO2 than the skin.

    Manned or not, the main advantage of a Venus blimp would be the lower altitude it would provide to scientific equipment versus satellites. So you'll get a lot more information on the atmosphere, which could help answer questions about Venus's evolution (and how other worlds in other systems might be). You'll get higher resolution radar imaging of the surface. You simplify to some extent sample return missions from the surface, as each sample collection doesn't have to be a self contained return mission. Etc.

    One thing on Venus I'd love to see studied more is the super-reflective radar surfaces. It's now believed to be due to a "galena snow", snow made of shiny, electrically conductive lead sulfide. I'd really love to know more about the surface minerology of Venus in general.

  18. 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.

  19. Hmm on SpaceX To Attempt Falcon 9 Landing On Autonomous Spaceport Drone Ship · · Score: 4, Interesting

    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.

  20. Re:Pretty sad on Dr. Dobb's 38-Year Run Comes To an End · · Score: 1

    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.

  21. Re:Anti-Aging is a Fraud Magnet on Researchers Accidentally Discover How To Turn Off Skin Aging Gene · · Score: 4, Informative

    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.

  22. Cautious? on Spacecraft Spots Probable Waves On Titan's Seas · · Score: 1

    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?)

  23. Re:Is Titan slowly drying off? on Spacecraft Spots Probable Waves On Titan's Seas · · Score: 1

    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.

  24. Re:RUBBLES FOR SALE !! GET YOUR RUBBLES !! on Spacecraft Spots Probable Waves On Titan's Seas · · Score: 1

    I'll take a truckload, I need something to insulate my house with.

  25. Re:yeah right on Spacecraft Spots Probable Waves On Titan's Seas · · Score: 4, Interesting

    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.