Slashdot Mirror


Carefully Timed Jerks Could Power Space Elevator

Hugh Pickens writes "BBC has an interesting article on the long-standing issue of how to power the 'climber' that would ascend a space elevator into space. Previous ideas have included delivering microwave or laser power to the climber beamed from the Earth's surface, but now European Space Agency ground station engineer Age-Raymond Riise has demonstrated a device that could provide a "lift into space" for cheaper space missions along a 100,000-km long tether anchored to the Earth. Riise demonstrated sending power mechanically by providing carefully timed jerks of the cable at its base with a broomstick to represent the cable held in tension, an electric sander to provide a rhythmic vibration to the bottom of the stick, and three brushes representing the climber with their bristles pointing downwards allowing the climber assembly to slide upward along the broomstick as it moved slightly downward, but grip it as it moved slightly upward. 'It would be possible to make a suspension system that completely decouples the cabin where the passengers are,' says Riise. 'For them it would be a linear movement with very little disturbance.' Riise says that he has been approached by commercial elevator companies, who are researching new ideas for elevators in superscrapers where the simplicity of the approach makes it attractive when compared to other ideas for powering lifts, such as compressed air."

41 of 270 comments (clear)

  1. "jerks" by Anonymous Coward · · Score: 5, Funny

    Something tells me the average slashdotter might be able to offer assistance in this "scientific research"

    1. Re:"jerks" by uniquename72 · · Score: 5, Funny

      Great - you've ruined a perfectly good joke with a bunch of "information".

      What's next, Mr. Brainiac? Are you gonna tell us you read the article, too?

    2. Re:"jerks" by Anonymous Coward · · Score: 1, Funny

      My only concern is what happens when those bristles get a little worn out after all that high intensity cyclic stress and an elevator load of passengers plummet to their doom from 100 km up.

      It shouldn't be too hard to add a braking system.

      That planet at the bottom of the cable should do nicely in that respect...

    3. Re:"jerks" by mgiuca · · Score: 2, Funny

      I certainly didn't read the article. I just came here to read all the "jerk" puns.

    4. Re:"jerks" by sortius_nod · · Score: 2, Funny

      You and me both...

  2. Oh no! by HaveNoMouth · · Score: 5, Funny

    providing carefully timed jerks of the cable at its base

    Too...many...jokes... [head explodes]

    1. Re:Oh no! by IthnkImParanoid · · Score: 5, Funny

      No, there's really only two: one involving rude people and one involving masturbation. Of course, the second one makes the [head explodes] tag all the more understandable.

      There's one additional joke to be made about the relevance of your username to this topic left as an exercise to the reader.

      --
      It's nothing but crumpled porno and Ayn Rand.
    2. Re:Oh no! by mkiwi · · Score: 4, Funny

      After all these years, I can't believe there's no +5 "Masturbation Reference" mod. C'mon Rob!

    3. Re:Oh no! by GodlikeDoglike · · Score: 5, Funny

      People like you are why we can't have nice things.

    4. Re:Oh no! by Al+Al+Cool+J · · Score: 4, Funny
      What about:

      an electric sander to provide a rhythmic vibration to the bottom of the stick

      Do not try this at home!

    5. Re:Oh no! by Pollardito · · Score: 2, Funny

      no time to add this code, he's too busy...take a guess

    6. Re:Oh no! by MadnessASAP · · Score: 3, Funny

      I think there's a Darwin award about that.

      --
      I may agree with what you say, but I will defend to the death your right to face the consequences of saying it.
    7. Re:Oh no! by Anonymous Coward · · Score: 0, Funny

      555 funny combooooooo!

  3. Re:frist by Anthony_Cargile · · Score: 5, Funny

    Yeah? Well the jerk store called and they're running out of you!

  4. Hmmmmm. by Oloryn · · Score: 5, Funny

    Y'know, this just might work, seeing that there is such a plentiful supply of jerks on the planet.

    1. Re:Hmmmmm. by R3d+M3rcury · · Score: 4, Funny

      Unfortunately, it's been my experience that most jerks have a horrible sense of timing, so they may not be all that useful

    2. Re:Hmmmmm. by rhizome · · Score: 4, Funny

      Y'know, this just might work, seeing that there is such a plentiful supply of jerks on the planet.

      Since the Bush Administration is about to be unemployed, this timing is fortuitous indeed.

      --
      When I was a kid, we only had one Darth.
  5. New Countdown by Anonymous Coward · · Score: 0, Funny

    Will there be a new countdown system?

    5..4..3..2..1..JERK OFF!

    1. Re:New Countdown by ExploHD · · Score: 2, Funny

      Suppose that the elevator's cables are in a ring formation, does that mean we'll have a circle jerk?

  6. Re:frist by l3ert · · Score: 5, Funny

    What's the difference? You're their all-time best seller.

    --
    per dolorem ad astra
  7. Slashdot: Setup lines for bad jokes... by istartedi · · Score: 5, Funny

    Slashdot: Setup lines for bad jokes. Stuff that splatters.

    --
    For all intensive purposes, "whom" is no longer a word. That begs the question, "who cares"?
  8. Re:Just give up already... by Anonymous Coward · · Score: 3, Funny

    With criticism like this, I would say this idea is destined to succeed.

  9. Vibration by phrostie · · Score: 4, Funny

    although i like the beauty of it's simplicity, wasn't vibration in the tether already a problem?

    it's like a 300 mile long guitar string with a slide going up and down.

    one of these days we'll have a /. story about the music of the space elevator.

  10. Re:I call bullshit by Anonymous Coward · · Score: 1, Funny

    They laughed at Edison. They laughed at the Wright Brothers. But they also laughed at Bozo the Clown.

  11. Re:frist by Anonymous Coward · · Score: 5, Funny

    Yeah? Well, I had sex with your wife!

  12. This is slashdot by ciaohound · · Score: 5, Funny

    The jerk store called. They want the third derivative of the position function back.

    --
    Oh, yeah, it's not easy to pad these out to 120 characters.
  13. Re:frist by geekmansworld · · Score: 5, Funny

    His wife's in a coma...

  14. 100,000-km by DanWS6 · · Score: 4, Funny

    That would take a while to get up. Then again, with enough jerking I'm sure anything is possibly.

  15. Re:frist by philspear · · Score: 4, Funny

    So if I'm reading the title correctly, Lawyers with rolexes could get us into space?

    Are those crickets?

  16. Jerking the wrong end... by werdnapk · · Score: 5, Funny

    Jerking at the base is ok, but jerking at the top works much better.

  17. Re:frist by Anthony_Cargile · · Score: 4, Funny

    (mumbles to self) Well the life support machine called... Wait! Thats it! You just screwed yourself Riley!

  18. ObFarSide by HiVizDiver · · Score: 3, Funny
  19. We need to get Steve Jobs on this right away. by The+Breeze · · Score: 4, Funny

    After all, he is a jerk with an impeccable sense of timing.

  20. Re:What a dumb idea... by TerranFury · · Score: 3, Funny

    an advanced civilization with a few hours to kill

    There isn't any evidence that such things exist, of course... :-) "Advanced civilizations," that is.

  21. Sign Me up Ma! All that practice was for somethin' by I_Can't_Fly · · Score: 5, Funny
    2:00 A.M Somewhere on a lonely street near the outskirts of Des Moines.

    Mom: "Hello"
    Me: "Mom, uh mom, I know it is late but.."
    Mom: "Oh hi honey..."
    Me: "Hey Mom, do you remember those sincere times when you tearfully told me to quit playing with myself and stop using so much water back in the day and how no good would come of it?"
    Mom: "Honey.. It was in your best interest..."

    Pause for dramatic effect, a little static on the line, the sound of dad snoring and breathing heavy..

    Me: "Mom, NASA just called. They need an expert. I am going to space Momma!..."
    Mom: "Oh Darling! I never knew you would succeed like this.. Your father will be so proud! What...what time is it? 2 o'clock?">BR> *rustling covers* *wierd pause* Space? I thought you were happy bagging groceries...
    Me: "Well they needed an expert. That's what us experts do. I just got a call on the emergency line. I am gonna have step up training, and need to get started. Tell Dad I love him Mah. Tell dad I love him. If I don't make it.. you can have the cats..."
    Mom:" What will you be doing again?"

    --
    Is this thing on? Check. Check.
  22. Re:Slashdot: Setup lines for bad jokes... by Bromskloss · · Score: 5, Funny

    please, google "begs the question".

    Right away, sir. To whom shall I send the results?

    --
    Swedish plasma phys. PhD student; MSc EE; knows maths, programming, electronics; finance interest; seeks opportunities
  23. So... by pondermaster · · Score: 2, Funny

    ...from take offs to jerk offs? Evolution!

  24. Re:I don't think this will work by ScrewMaster · · Score: 1, Funny

    are usually a ribbon/cable

    Would that be ATA100 or ATA133?

    --
    The higher the technology, the sharper that two-edged sword.
  25. And you, sir, are the by Failed+Physicist · · Score: 5, Funny

    C-C-C-C-Combo breaker!

  26. Okay, all you jerks... by Jane+Q.+Public · · Score: 3, Funny

    ... on the count of THREE! ...

  27. "Carefully Timed" Jerks? by Philip+K+Dickhead · · Score: 2, Funny

    That's "First Posters", is it not?

    --
    "Speaking the Truth in times of universal deceit is a revolutionary act." -- George Orwell