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User: MichaelSmith

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  1. Or build a skyhook on Space Elevator Conference Prompts Lofty Questions · · Score: 2, Interesting

    It needs to be strong but nanotubes aren't required. You make a cable about 1000 km long. It has fittings on both ends which vehicles can attach themselves to. It orbits slightly more than 500 km above the ground and rotates its its axis horizontal and at 90 degrees to its orbit. The length and orbital altitude and chosen so that when one end almost reaches the ground it has a low velocity, while the other end is above escape velocity. You use it to exchange mass between the surface of the Earth and a trajectory which will take you to other planets. A dead mass can be sent down to Earth and a vehicle carrying passengers and supplies can be sent the other way.

  2. Re:question on CERN Physicist Says Dark Matter May Be an Illusion · · Score: 1

    There is no dark side of the moon really, matter of fact its all dark.

  3. Re:Gravity control by artificial quatum dipole pol on CERN Physicist Says Dark Matter May Be an Illusion · · Score: 1

    I have trouble figuring out why the quantum vacuum doesn't produce real rather than virtual particles, since with negative gravitational charge the net energy of a real particle pair is nearly zero

    I don't really get you here. As I understand it the quantum vacuum produces anti+normal particle pairs which annihilate more or less straight away. They are there and real but they add up to nothing. If quantum vacuum produced real particles that would mean a miss-match between normal and anti particles so matter would continually appear out of nothing (hey, are you Fred Hoyle?) but that violates conservation of mass energy.

  4. Re:Does anyone actually use tablets? on Patent Applications Hint Apple Wants To Eliminate Printer Drivers · · Score: 1

    I live in the second largest city in Australia. I work in a building which houses several engineering firms and the state police. Tablets are everywhere. Go out for coffee and there will be a tablet on every fourth table or so. Though I think it is a bit of a fad. I think tablets will take a stable chunk of the light laptop use case in the long term.

  5. Re:But on BART Disables Cell Service To Disrupt Protests · · Score: 1

    Given the money the cell carriers lose by not being able to carry calls for their customers I expect they are lining up to install the gear.

  6. Re:But on BART Disables Cell Service To Disrupt Protests · · Score: 1

    Here in Melbourne cellular access is primarily in the stations though it works for some distance between stations as well. I know how narrow the tubes are in London so I would expect more attenuation, but I think the service in the stations is more important anyway. I don't know why you think depth and road following matter. The service on the surface won't work at any depth. You need a microcell under ground, but we have them on many street corners anyway.

  7. Re:Attacks all thin tablets on Apple Files Suit Against Motorola Xoom In EU · · Score: 3, Interesting

    These are suits regarding the equivalent of design patents. If Apple thinks it has a design patent over both Samsung and Motorola (the two tablets are quite different from each other), it is basically claiming that it has a patent on the design of *any* thin tablet device.

    Which would be utterly absurd. I can understand the Galaxy Tab thing since the devices were very similar in appearance.

    I would be interested if you could point to two LCD televisions which look in any way different apart from the manufacturers logo.

  8. Re:Another non-exploit on Guide To Building a Cable That Improves iOS Exploits · · Score: 1

    If you can hold the computer in your hand, security has little to do with the operating system.

  9. Re:dumb question but... on Eben Upton Talks About the Raspberry Pi USB Computer · · Score: 1

    You don't actually need a leash. Pokemon takes care of that.

  10. Re:dumb question but... on Eben Upton Talks About the Raspberry Pi USB Computer · · Score: 1

    Works with my son.

  11. Re:How expensive are they? on Army Gives Robo Jeeps a Go · · Score: 3, Insightful

    I don't know how much one of these costs but if it saves two soldiers it can have a huge ROI.

    Only if that means they have a smaller army instead of giving that soldier some other task to perform.

    In the short term the drivers would do other work. In the long term the army would adjust its recruitment around the ability to use more automation.

  12. Re:tl;dr on What Today's Coders Don't Know and Why It Matters · · Score: 1

    Where I work a short loop could be a couple of hundred lines long. And yeah I know that is the real problem. Thats what happens with large scale systems which are maintained over several decades and continents.

  13. Re:It doesn't matter. on What Today's Coders Don't Know and Why It Matters · · Score: 1

    Bad initial design can bog down a program forever, no matter how well you optimize the inner loops.

    And once you sell it you get a endless stream of revenue for maintenance.

  14. Re:those young whippersnappers on What Today's Coders Don't Know and Why It Matters · · Score: 1

    I am not sure that Shotgun is re-entrant. I am concerned that it may deadlock.

  15. Re:those young whippersnappers on What Today's Coders Don't Know and Why It Matters · · Score: 1

    You are making me cry.

  16. Re:Fashion on What Today's Coders Don't Know and Why It Matters · · Score: 1

    I'm actually a youngin' who took interest in the lower layers, and developed my skill set around that. I'm kind of waiting for the oldies to retire/kick the bucket and open up more openings for people like me.

    A radar engineer I know mentioned the other day that most of the people out there doing hardware/software/tuning on radars are between 50 and 60 years old. The time to recruit the next generation is now. Its not an easy job to learn.

  17. Re:tl;dr on What Today's Coders Don't Know and Why It Matters · · Score: 0

    If 'q' is a variable with a short lifespan/scope (eg. one small function) then short is better.

    Please don't. Try searching for 'q' to see where a variable is used. Not fun.

  18. Re:Wifi won't work on Ask Slashdot: Overcoming Convention Hall Wi-Fi Interference? · · Score: 1

    Pull some cables then.

  19. Who? on FOX To Host New Cosmos · · Score: 1
  20. Wifi won't work on Ask Slashdot: Overcoming Convention Hall Wi-Fi Interference? · · Score: 1

    Wifi channel space has obviously been used up. Use either:

    1. 1. 3G cellular
    2. 2. Hard wired ethernet (no good for tablets, I know)
  21. From here on on Germany Says Facebook's Facial Recognition Is Illegal · · Score: 1

    I don't think its good that employers are going to be spidering social media, blogs and voyeur sites, then cross referencing with their HR databases. No amount of legislation or tut-tutting over facebook will stop that, and its going to be with us until we loosen up and stop caring that it matters what people are up to.

  22. Re:FAA Shutdown on FAA Taking a Look At News Corp's Use of Drone · · Score: 2

    And you might feel differently if you were ever asked to work without a paycheck for a month or more, as the employees of the FAA are doing.

    Just to be clear, only 40 FAA employees have been asked to work without pay. The rest (who weren't involved in critical safety ops) .

    I think its pretty horrifying that the US federal Government is going to operate with volunteer safety inspectors. Surely the only safe way to proceed would be to shut down aviation, or pay their people.

  23. Re:who frickin cares on Linus Torvalds Ditches GNOME 3 For Xfce · · Score: 1

    I am pretty sure that gnome 2 will be around for a while to come, even if you have to install it from packages. I reinstalled linux on my eeepc 701 this week. I put debian on to it (500 MB) and installed xfce. Its a bit rough around the edges but it means I still have 2.5G of space free out of the total 4G.

  24. Re:We've been over a hundred of these... on Email In Oracle-Google Case Will Remain Public · · Score: 1

    There seem to be command line and GUI debugging tools in the developer kit, but I don't use them.

  25. Re:Not the language, the library and the system on The Most Expensive One-Byte Mistake · · Score: 1

    A descriptor based string API would be pretty simple to write. There is one in VMS for example.