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User: Cyberax

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  1. Re:I'm not sure what conclusions to draw from here on Study: Mice Gain Weight In Cold Temperatures Due To Gut Changes (economist.com) · · Score: 2

    Yes, it's thermodynamics. The "warm-temperature" mice simply don't burn food as completely as the "cold-temperature" mice. If you restrict calorie intake further then they WILL lose weight.

  2. Re:Why are corporations... on Virgin Galactic To Unveil New Version of SpaceShipTwo (wired.com) · · Score: 1

    Matters to anyone who wants something more than an expensive joyride. SpaceX can be used as a building block for further space exploration and Virgin Galactic can not be used for anything more than it is right now. We don't put articles here about super-exclusive $100000-per-seat cruises, do we?

  3. Re:Why are corporations... on Virgin Galactic To Unveil New Version of SpaceShipTwo (wired.com) · · Score: 1

    Virgin Galactic can reach "space" (a 100km boundary) but it can't stay in orbit. And this is what actually matters.

  4. Yes, it is weather. Unprecedented weather, never recorded before since the start of the systematic observations. Yes, it's due to El Nino which is also the strongest one recorded so far.

    But sure, we're heading into an Ice Age. Just wait two or three years. And meanwhile feel free to burn as much gasoline as you can - it'll help to prevent Ice Age!

  5. Re:don't believe his lies on FBI Gripes "We Can't Read Everyone's Secrets" (reuters.com) · · Score: 1

    TPM chips are designed to withstand such attacks by using distributed storage. I really doubt that you can pull it off even in the best lab. And even then the cost of doing it will probably make sense only for highest-grade intelligence, not regular terrorist investigations.

  6. Re:don't believe his lies on FBI Gripes "We Can't Read Everyone's Secrets" (reuters.com) · · Score: 1

    Nope. Doesn't work like this:
    1) Flash memory in iPhones is encrypted with a strong random key.
    2) The key is contained only in RAM and inside the TPM module that also does fingerprint recognition.
    3) The key can be released if the correct PIN is entered. However, the key is irrevocably destroyed by the TPM module if you try more than 6 wrong PINs.

    In conclusion, pretty much the only way to unlock a modern iPhone when its owner is dead is to have the fingerprint available.

  7. Re:The technical problems with this are immense. on Elon Musk's Next Great Idea? Electric Air Travel (bgr.com) · · Score: 1

    So you can't read, can you? Autorotation landing is an extremely dangerous procedure and not even always possible if an engine stops at low enough altitude.

  8. Re:The technical problems with this are immense. on Elon Musk's Next Great Idea? Electric Air Travel (bgr.com) · · Score: 1

    And I suggest actually reading about it, not just googling the name. See this reply: http://slashdot.org/comments.p...

  9. Re:The technical problems with this are immense. on Elon Musk's Next Great Idea? Electric Air Travel (bgr.com) · · Score: 1
  10. Re:The technical problems with this are immense. on Elon Musk's Next Great Idea? Electric Air Travel (bgr.com) · · Score: 1

    No, it doesn't work like this. A disconnected rotor acts as a parachute with the same area as the area swept by its blades. It's usually (always?) not enough to slow down to survivable vertical velocity. To actually survive the landing, a pilot has to reduce the pitch of the blades to speed them up and then just before crashing increase the pitch again, trading the stored kinetic energy for a burst of thrust. And you need to have enough altitude to pull this off, so all helicopters that I know of have this nice fun "you'll certainly die" zone.

  11. Re:The technical problems with this are immense. on Elon Musk's Next Great Idea? Electric Air Travel (bgr.com) · · Score: 1

    Well, if your target is to create a short-ranged "bus" air service (never mind an actual flying car) then VTOL is pretty much a requirement. And as I understand, that's exactly Musk's goal.

  12. Re:The technical problems with this are immense. on Elon Musk's Next Great Idea? Electric Air Travel (bgr.com) · · Score: 1

    Turbines are better if you need steady thrust and can tolerate high rotational velocities. So they work fine for large airplanes, but are not that useful for VTOL aircraft (which is the goal here). They are also extremely expensive.

  13. Re:The technical problems with this are immense. on Elon Musk's Next Great Idea? Electric Air Travel (bgr.com) · · Score: 1

    Except that helicopters have inherent problems that prevent them from being used more widely. Including that pesky rotating blade and everything in the drivetrain being critically important. If an engine on heliocopter fails - it's time to crash.

  14. Re:The technical problems with this are immense. on Elon Musk's Next Great Idea? Electric Air Travel (bgr.com) · · Score: 1

    It's much more complicated than that. You need to compare the weight of fuel and the weight of the engines. Electric motors can be made very lightweight, gasoline engines - not so much.

    Modern Li-Ion excels at power density, it _far_ exceeds small ICE engines. And this solves the main problem that prevents practical VTOL flying cars with ducted fans, the amount of power required for a takeoff is literally an order of magnitude more than power required to support horizontal flight. That's why companies like Terrafugia are working on "hybrid" systems now - a fairly small Li-Ion battery for takeoffs and landings and a gasoline engine for cruising. I've crunched numbers myself and it appears to be feasible.

    And then, of course, Li-Air batteries that are pretty much the holy grail. If they are ever developed, a flying car will be _easy_. Just add enough ducted fans, a control system and you're good to go.

  15. Re:Boat still hasn't left port on Ask Slashdot: Time To Get Into Crypto-currency? If So, Which? · · Score: 1

    Austrian approach does not view economics as science, rather as a deductive study.

    Well, yes. It's a religion, or more appropriately a cult. It has a set of pre-determined conclusions and finds excuses for them. E.g.: "Economy is doing great - a good time to cut taxes on the rich and reduce social safety network!", "Economy is sputtering - need to reduce taxes on the rich and kick poor people more, so they work harder!", "Economy is crashing - that's because taxes were not reduced enough, cancel taxes on the rich and force all those lazy poor to work for slave wages!".

    So answer this simple question: when is it a good time to raise taxes and improve social safety net?

    You probably wanted to say "recessions happen because customers do not have money". Deflations (in the sense of falling price levels) occur in other situations too (for example increases in productivity that outpace the increase in the money supply) and don't necessarily have the effects associated with recession.

    No. I was precise in my description. Deflation happens ONLY when consumers have no free money to spend. I've actually studied ALL the documented episodes of deflation in the last 120 years in all of the countries. Out of 60 cases there was only ONE exception (Sweden, 1992) where a nominal deflation coincided with economic recovery, and that's only because deflationary processes had been arrested by a quick and decisive stimulus actions, helped by increased export revenue.

    Deflation does not always lead to Depression-scale slowdowns, but it's never associated with good times.

    1. There are situations where a falling price level does not cause a recession (say in the consumer electronics sector, or the examples from the Atkeson/Kehoe paper I linked)?

    There are no such situations.

  16. Re:Look at past innovations on Ask Slashdot: Time To Get Into Crypto-currency? If So, Which? · · Score: 1

    Secure?? How? If your Bitcoin wallet is compromised through buffer overflow in that nice NFC-handling code then your money is GONE. There's no way to rollback BTC transactions. If my credit card gets compromised, I get all my funds back and receive a new card by mail in a couple of days.

    If a bitcoin merchant sends you a bobcat, you're screwed. If a credit card merchant sends me a bobcat, I simply issue a chargeback and get all my money back.

    Where exactly is security?

  17. Re:Boat still hasn't left port on Ask Slashdot: Time To Get Into Crypto-currency? If So, Which? · · Score: 1

    Austrian religion (it's not a "school"), as usual does not make predictions. It doesn't use models so it can't do that.

    According to mainstream economy, deflation happens because consumers DO NOT HAVE MONEY to spend. So the producers have to cut prices to sell at least _something_. This in turn leads to wage decreases and layoffs. And this in turn leads to consumers having less money. Rinse, wash, repeat.

    Reality is often a little bit messier - wages rarely fall in nominal values, they tend to stick at zero growth. So nominal deflation doesn't appear, instead no-flation (1% inflation) happens. See: "European Union", "Japan".

  18. Re:dont be so sure on Marco Rubio Wants To Permanently Extend NSA Mass Surveillance (nationaljournal.com) · · Score: 1

    Truth is partisan. It votes Democratic.

  19. Actually, they might as well be POW. But how can they prove it?

  20. Re:dont be so sure on Marco Rubio Wants To Permanently Extend NSA Mass Surveillance (nationaljournal.com) · · Score: 0

    Yes, and they did this by exploiting all the primal instincts of their base: bigotry, xenophobia, greed, ignorance. Helped a lot by gerrymandering ( http://politics.slashdot.org/s... ) and disenfranchising.

    And this year's crop of candidates don't even pretend to give a fuck about anything but pandering to Christian far right.

  21. Re:dont be so sure on Marco Rubio Wants To Permanently Extend NSA Mass Surveillance (nationaljournal.com) · · Score: 2

    How exactly is Sanders "nutty"? Does he want to cancel taxes for ultra-rich (like Rubio)? Or start several new wars with Cuba, Iran and probably Canada (Cruz, Rubio, Trump)? Or maybe he has Putin as a role model?

    Sanders is a freaking _moderate_. He wants universal health care, education and tighter control of Wall Street. What exactly is insane here?

  22. Re:dont be so sure on Marco Rubio Wants To Permanently Extend NSA Mass Surveillance (nationaljournal.com) · · Score: 1

    Whut? What makes you think any in their sane mind would want to vote for Republicans? "Center right" simply doesn't exist.

  23. Re:What part of everyone was unclear? on Windows 10 Passes Windows XP In Market Share · · Score: 1

    I don't mind taking my kids to the doctor and paying the doctor. What you're suggesting is that I should prepay for services I may not need, to make sure my money covers everyone else. The only system where that is acceptable is national single payer healthcare. Similar to roads, schools, military, etc.

    What's the fundamental difference between those two? (Not that I'm against a single-payer health system)

  24. How are they going to do phase manipulation? It's needed to achieve a true depth field - essentially you need to create a hologram to fool eyes. Google Glass doesn't need it since it shows everything in one plane and Microsoft's AR technology simply makes this plane moveable. That's why this movie shot through a camera is extremely misleading - they should have shown what happens when camera drastically changes focus.

    I checked their patent but they simply threw everything possible against a wall, hoping something will stick - like doing multiple layers with lenses between them, directly stimulating retina cells, using phased MEMS and so on. No clue how it can really work.

  25. "Terrorist Financing Tracking Programme" is it a program to finance terrorists using tracking? Or is it Trivial FTP?