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User: ls671

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  1. Re:Physics on The International Space Station (Finally) Gets an Espresso Machine · · Score: 3, Informative

    The atmosphere on board the ISS is similar to the Earth's.[142] Normal air pressure on the ISS is 101.3 kPa (14.7 psi);[143] the same as at sea level on Earth. An Earth-like atmosphere offers benefits for crew comfort, and is much safer than the alternative, a pure oxygen atmosphere, because of the increased risk of a fire such as that responsible for the deaths of the Apollo 1 crew.

    https://en.wikipedia.org/wiki/...

  2. Re:Budget running dry? on Report: Chinese Government Plans To Put 3D Printers In All Elementary Schools · · Score: 1

    Phase 2 of the project: 3D print the teachers, save money and profit.

  3. Quake on Fault System Enables Larger Quakes In California · · Score: 2

    Some Californian found a bug in quake that enables you to make your game environment larger?

  4. Re:Thus one on Popular Android Package Uses Just XOR -- and That's Not the Worst Part · · Score: 1

    It doesn't convert links for ACs.

  5. Re:XOR is useless on Popular Android Package Uses Just XOR -- and That's Not the Worst Part · · Score: 1

    I used to do this to generate admin passwords for PAP2 devices going out in the field ;-)

    device MAC address: 7eec2ada9f0b
    device admin password: 0e8620ffe985

    echo 7eec2ada9f0b | md5sum | md5sum | md5sum | cut -c -13
    0e8620ffe985

    Damn, I should have XORed it with a secret password on top of that then my scheme would have been really bullet proof...

  6. Re:XOR is useless on Popular Android Package Uses Just XOR -- and That's Not the Worst Part · · Score: 1

    I find it gives much harder to decrypt data when running it 3 times.

  7. Re:It's that damn cancer! on Microsoft Engineer: Open Source Windows Is 'Definitely Possible' · · Score: 1

    They will be bought up by Oracle by then. Remember that other company that tried to open source a version of their OS?

    https://en.wikipedia.org/wiki/...

  8. Re: Just what the Moon always wanted on NASA's ARM Will Take a Boulder From an Asteroid and Put It In Lunar Orbit · · Score: 1

    Thanks, that was what I was trying to say; same difference.

  9. Anti garavity device on Japan To Build 250-Mile-Long, Four Storey-High Wall To Stop Tsunamis · · Score: 1

    May as well build an anti gravity device and get done with it ;-)

  10. Re: Just what the Moon always wanted on NASA's ARM Will Take a Boulder From an Asteroid and Put It In Lunar Orbit · · Score: 1

    I don't know shit about super cluster but I am sure I could get along quickly applying basic principles.

  11. Re: Just what the Moon always wanted on NASA's ARM Will Take a Boulder From an Asteroid and Put It In Lunar Orbit · · Score: 1

    Ok I will give you an hint:

    It would make the solar system a {0} body system with a very hard center of mass to compute.
    The {0} parameter would depend on which planets we exclude from our Earthly definition I guess, think about Pluto ;-)

    In the end yes, the whole thing rotates around the center of mass which we haven't clearly identified yet...

  12. Re: Just what the Moon always wanted on NASA's ARM Will Take a Boulder From an Asteroid and Put It In Lunar Orbit · · Score: 1

    Nope it wouldn't.

  13. Re: Just what the Moon always wanted on NASA's ARM Will Take a Boulder From an Asteroid and Put It In Lunar Orbit · · Score: 1

    It's a fricking center of mass.

  14. Re: Just what the Moon always wanted on NASA's ARM Will Take a Boulder From an Asteroid and Put It In Lunar Orbit · · Score: 1

    Indeed it does.

  15. Re: Just what the Moon always wanted on NASA's ARM Will Take a Boulder From an Asteroid and Put It In Lunar Orbit · · Score: 1

    Cool brother. Anyway, wtf is an axis of rotation?

    Just kidding ;-)

    Take care,

  16. Re:Oh noes ... on NASA's ARM Will Take a Boulder From an Asteroid and Put It In Lunar Orbit · · Score: 1
  17. Re: Just what the Moon always wanted on NASA's ARM Will Take a Boulder From an Asteroid and Put It In Lunar Orbit · · Score: 1

    In order to account for binary systems, I like to generalize and say it's all the same although the formula to compute the actual center of mass when inside the larger body differs than when it is outside. This is because when inside the larger body, some part of the larger body modify the gravitational attraction from the smaller body.

    But in the end, the important point to be aware of is the center of mass.

    http://slashdot.org/comments.p...

    As a side note. although there is few references to such cases, it is the same for 3,4,5... body systems. All you have to understand is the center of mass.

    Translated to slashdot developer like language: Understand the basic principles and avoid re-inventing the wheel as much as possible.

  18. Re: Just what the Moon always wanted on NASA's ARM Will Take a Boulder From an Asteroid and Put It In Lunar Orbit · · Score: 1

    Congratulation!

    Here is a link with a nice animated gif that shows it all:
    https://en.wikipedia.org/wiki/...

    Oh and yes, I already knew the center of mass was inside the Earth and both planets rotate around that center of mass which is pretty close to rotating around each other in popular language.

  19. Re:Oh noes ... on NASA's ARM Will Take a Boulder From an Asteroid and Put It In Lunar Orbit · · Score: 1

    Hmm... a 4 meter wide body should be very close to negligible with regard to that.

  20. Re: Just what the Moon always wanted on NASA's ARM Will Take a Boulder From an Asteroid and Put It In Lunar Orbit · · Score: 1

    Indeed, they rotate around each other, contrarily to popular belief where the Moon rotates around the Earth.

  21. Re:I recently had a dream on Jupiter Destroyed 'Super-Earths' In Our Early Solar System · · Score: 1

    I recently had a dream where the Sun disappeared, Would that have any effect on earth?

  22. Re:Congratualtion Sherlock on Excess Time Indoors May Explain Rising Myopia Rates · · Score: 4, Funny

    Of course I know. When younger, I use to work outside and I had no myopia. Now I am older, I work underground and I have myopia. See? you can't deny scientific facts like that.

  23. Congratualtion Sherlock on Excess Time Indoors May Explain Rising Myopia Rates · · Score: 3, Interesting

    I work in a basement 200 feet under the ground and I know it feels good to get outside once in a while.

  24. Re:Great example on Fake Suicide Attempt Tests Facebook Prevention Tool, Lands Man In Asylum · · Score: 5, Funny

    Don't worry I am pretty sure /. doesn't have a suicide prevention tool. It is far down the list after https/TLS support.

    The project has been delayed several times due to a high rate of false positive. It is really difficult to adapt off the selves suicide prevention software to /. audience.

  25. Re:Ever hear of "sociology"? on Speaking a Second Language May Change How You See the World · · Score: 1, Interesting

    Of course you are right, but I find interesting that something as obvious as this is posted on /. You know, the obvious is often hidden more and more these days.

    As for second languages, I master 2 languages fluently. I learned the second one at 18 using total immersion language learning. It is a shame that I never took the time to learn a third, fourth and fifth one or more this way.

    I recommend total immersion for those wanting to seriously learn another language, you will experience what the poster is talking about even more deeply ;-)