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User: dak664

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  1. Re:In the US? Not so much... on Ask Slashdot: What Were You Taught About Computers In High School? · · Score: 1

    1967...math teacher got permission to use the school district's IBM1401 after hours. Programs were self booting decks of cards punched in binary, was great fun writing single-card programs.

    Same math teacher was instrumental in bringing a PLATO III terminal to a classroom (video sent 90 miles through leased cable from CDC1604 at CERL) http://en.wikipedia.org/wiki/PLATO_(computer_system)

    Punched cards lost their appeal after that...

  2. Re:Composting toilet on Why Worms In the Toilet Might Be a Good Idea · · Score: 1
  3. Re:Sophilistic bullshit on BitCoin Gets a Futures Market · · Score: 1

    The technocracy study guide is a good read http://archive.org/details/TechnocracyStudyCourseUnabridged

    Mostly written by M. King Hubbert of peak oil fame to further the technocrat movement in the 1930s, itself a response to the monetary policies that led to the great depression.. Putting a price on things is what leads to financial speculation and concentration of wealth. Bartering can be done when both sides have the commodity in hand, or one or both sides can give an IOU for payment when the commodity becomes available. Such IOUs eventually become fiat money, which thus represents a general lien on future productivity. The drive to hoard such money leads to misallocation of resources. The system works smoothly enough when productivity is increasing, but due to finite raw materials and energy supply that can't go on forever

    Their solution was to replace money by non-transferable energy certificates divided up among the population from the years total energy harvest, which would however expire every two years. The "price" of each good and service for the next year would be set by its embodied energy. If energy becomes more expensive then the more efficient processes would naturally be selected. This was predicted to reduce working hours while simultaneously maximizing the standard of living.

    Interestingly bitcoins are the exact opposite of these energy certificates; producing them consumes energy today as a lien on future embodied energy. Workable when energy is increasing, otherwise not so much.

  4. Re:Dead wrong on Why Mars Is Not the Limit For Human Space Flight · · Score: 1

    You need to eject momentum but not necessarily mass. Light has momentum but not mass, and collimated black body radiation theoretically gives the highest possible specific impulse of c http://en.wikipedia.org/wiki/Nuclear_photonic_rocket, It would require a prodigious amount of energy, e,g, very efficient conversion of mass into heat.

  5. Re:Sci-fi vs Science on Earth's Corner of the Galaxy Just Got a Little Lonelier · · Score: 1

    What is the point of orbits?

  6. Re:Sci-fi vs Science on Earth's Corner of the Galaxy Just Got a Little Lonelier · · Score: 1

    But where does that energy have to be lost? Grant me a really good spring and a capsule+spring can be launched with some initial energy which is recoverable in the spring upon landing, in fact even more than the launch energy if the target planet is more massive. Take off again and back to Earth with no energy expended. Well, Earth and the target planet get some added momentum away from each other, and some energy loss as a result. Wait half an orbit and that separation momentum gets transferred to the star pair with miniscule energy loss.
    .

  7. Re:Sci-fi vs Science on Earth's Corner of the Galaxy Just Got a Little Lonelier · · Score: 1

    I don' t think the Earth could provide the energy needed for interstellar flight as we know it, but in principle the only energy needed to move between (4 dimensional) points A and B is the difference in potential energy between the two points. In practice the only method of acceleration in space we have is to eject 4-momentum in the opposite direction, permanently losing that energy.

    We could do a lot if there were some way of manipulating gravity, e.g. a gravitational lens could pull ships about without wasting energy and could even gain energy when traveling towards a lower potential. Same for accretion of an asteroid belt into a habitable planet. Someday we might figure it out. Sadly Einsteins don't happen very often, especially in nanny states.

  8. Re:I'm sorry sir, but... on Nuance Launches Siri Rival "Nina" · · Score: 1

    If you remember how.

  9. Re:Why's this a good thing? on Contest To Sequence Centenarians Kicks Off · · Score: 1

    That assumes there are jobs available whereby those people can produce more than they consume. But if there are a decreasing number of productive jobs, more workers means more unemployed or doing work that is ultimately a drain on the economy like taking in other people's washing. Productive jobs are limited by resources, and most of the world is well past the point where more workers would allow more resource extraction.

    At some point humans will have to come to grips with a sustainable population and economy. It won't be pretty.

  10. Re:What is there to turst? on Would You Trust an 80-Year-Old Nuclear Reactor? · · Score: 1

    The half lives are the same. But actinides build up over time and the residual beta activity in used fuel rods is many, many orders of magnitude greater than that from instantaneous kiloton fissions.

  11. No worries on Would You Trust an 80-Year-Old Nuclear Reactor? · · Score: 5, Insightful

    Well sure the regulators would not extend the license unless it was absolutely safe. And the power companies know they would get a painful slap on the wrist if anything went wrong.

  12. Re:Beacon Power on After Recent US Storms, Why Are Millions Still Without Power? · · Score: 1

    Automatic transfer switches would prevent some caring person from picking up the neighborhood load. However unless their Honda cann generate megawatts that would be a very short time indeed.

    Knowing this, an experienced lineman might not ground potentially live wires according to protocol. That would be a tragedy, but so would be falling from the cherry picker basket.

  13. Re:Reverse engineered in the USA on Navy To Auction Stealth Ship · · Score: 1

    And dollars to doughnuts the winning bidder will be Lockheed.

  14. Not that much storage on World's Largest Digital Camera Project Passes Critical Milestone · · Score: 1

    The first image would compress a factor of 2-5 depending on how good the S/N. Each image after that x100 using delta compression, unless there is something really funky going on in our neck of the woods

  15. Re:Sci Fi has done this... on Treating Depression With Electrodes Inside the Brain · · Score: 3, Informative
  16. Re:Then a butterfly flaps its wings on Neil deGrasse Tyson Outlines a Plan For Saving Earth From Asteroids · · Score: 1

    You can numerically integrate from initial estimates of known objects. Uncertainties get magnified when any two get close enough. Rotations come into play, mass can get redistributed. And of course a new object could always appear, don't forget the solar system shifts to entirely new space every 316 days.

  17. Re:Funky specs... 6.5KHz? Really that slow? on GNU/Linux Running On An 8-Bit Processor · · Score: 1

    If you can get the java working on your 1284p you could run Avora to simulate an internal 1284p. It's faster than real time because it goes by events rather than single cycle emulation, on my desktop it is actually 5x faster. Run your system on the simulated MCU and you're up to 50KHz. A couple more iterations of Avrora might give over a MHz! Probably would hit a memory limitation at some point though...

  18. Orientation is not so important on MIT Solar Towers Beat Solar Panels By Up To 20x · · Score: 1

    Oriented or tracking panels produce only around 20-30% more energy than flat horizontal panels, when averaged over a year over most of the USA. This because much of the insolation is diffuse. NREL has maps that show the measurements at http://rredc.nrel.gov/solar/old_data/nsrdb/1961-1990/redbook/atlas/

  19. Re:Prohibition on Red Wine and the Secret of Superconductivity · · Score: 2

    I an with you, discoveries are made when people are free to think. Especially the weird socially challenged thinkers.

  20. Money chasing Money on Facebook Buys 750 IBM Patents · · Score: 1

    To me, mass patent purchase means they have more money than they can usefully spend on product development. This because the stock market disconnected from real product development a long time ago, now it's just money chasing money. There may be some savings in patent licensing, almost certainly not enough to justify purchase.

  21. Re:Eventually... on Single-Ion Clock 100 Times More Accurate Than Atomic Clock · · Score: 1

    Stacking two clocks on top of each other would cause them to phase lock due to every known experimental defect.

  22. Re:Ubuntu on Ask Slashdot: What Is the Best Distro For Linux Lessons? · · Score: 3, Insightful

    True if most people will accept the default installation, else the forums will not as much. I think acceptance of the default is more likely in mint at the moment.

  23. Re:It's a Race on Intel Gets Serious With Solar-powered CPU Tech · · Score: 1

    Sure technology helps, why not use all the available tools. But excreting business as usual with the expectation that technology will save you is not responsible. You don't have to increase pollution to accommodate new discoveries, why make a race between techonology and death? Einstein didn't have a computer, and he was no hunter-gatherer.

  24. Re:Is "nuclear" really applicable? on In Hot Water: The Effects of Even Modern Nuke Plants On Water · · Score: 1

    Yes, to a large extent. Nuclear plants don't use as high a boiler temperature as fossil-fuel plants, sometimes not even superheating the steam. This makes for poor thermal efficiency and more heat rejected per kWh of electricity produced. Cooling towers give a lower exhaust temperature and raise the thermal efficiency (and profit margin) at the expense of "consumptive" use of water. River or pond cooling is usually considered as non-consumptive water use, as are dams, although there is extra evaporation in all cases.

  25. Re:Can you go paperless? on Ask Slashdot: How To Go Paperless At Home? · · Score: 1

    Just keep the paper, i throw everything into one box. At the end of the year label it and start a new box. Rotate every 7 years, that is all you are required to keep records for the IRS other than cost basis for depreciation and capital gains. If you get audited bring the box and search for things on their time. This will tend to keep the audit short, as they have to give you the time but are rated by the amount recovered per hour.