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  1. #11
    qualia is offline Senior Member Respected Member
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    I guess the ones you find in racquets are carbon fiber reinforcements... Or graphite composites most probably.

    Lol, I've seen and read about CNT's and they look really promising for future technology. Will be eagerly waiting for the pics =3

  2. #12
    ultimgamer is offline Senior Member Regular
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    REALLY?!?!?!?!




    Reeeeeaaaaaaalllllllllllyyyyyy?

  3. #13
    Blon is offline Banned Newbie
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    I went to a lecture on carbon nanotubes and other nano technology. The lecturer wasn't that great, but it is very interesting stuff.

    The most interesting thing I learnt from that lecture was that geckos actually have nanometer structures on their feet to stick to walls, and that the structures on their feet are able to support many times their own weight. But when I asked, he couldn't answer how the were actually able to remove their feet from the wall though.

  4. #14
    Ishman is offline Senior Member Always Around
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    The way geckos stick to surfaces is through Van Der Waals forces : That is, the attraction atoms have between each other from the slight imbalance in charge all atoms have at any one instant as the electrons make their orbit.

    It's a hotly debated topic on exactly how they unstick themselves, but the stickiness itself is based on the geometry of the hairs on it's feet, not the material it's made of.

    Geckos have millions of setae--microscopic hairs on the bottom of their feet. These tiny setae are only as long as two diameters of a human hair. That's 100 millionth of a meter long. Each seta ends with 1,000 even tinier pads at the tip. These tips, called spatulae, are only 200 billionths of a meter wide--below the wavelength of visible light. (ripped)

    A single seta can lift the weight of an ant. A million setae, which could easily fit onto the area of a dime, could lift a 45-pound child. If a gecko used all of its setae at the same time, it could support 280 pounds. (ripped)


    Geckos' toes are extremely double jointed, allowing them to overcome the van der Waals force by peeling their toes off surfaces from the tips inward. In essence, this peeling action alters the angle of incidence between millions of individual setae and the surface, reducing the van der Waals force. (ripped)

    So, yes, geckos are fucking awesome.

  5. #15
    Aikido is offline Senior Member Community Builder
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    will anyone tell me who Ishman is?

    cool thing about the geckos though.

  6. #16
    Blon is offline Banned Newbie
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    Wow. If you happen to know any more on the subject, would you mind if I asked a few questions? I didn't really get the chance at the time.

    what happens when a gecko gets its feet wet? and wouldn't the setae get damaged easily? or perhaps get clogged or covered by particles of dust when walking on the dirt?

    And thank you very much for providing an explanation for geckos removing their feet as well, that question's been at the back of my mind for a while. after thinking about it a while, the lecturer said that it must secrete something to reduce the Van Der Waal forces.

  7. #17
    shautieh's Avatar
    shautieh is offline Senior Member Community Builder
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    Quote Originally Posted by Aikido View Post
    will anyone tell me who Ishman is?
    he is the guy who is supposed to sell me a CNT knife for a cheap price

    ;p

  8. #18
    Ishman is offline Senior Member Always Around
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    Wetting the feet has no affect, and I'd imagine the Gecko periodically cleans its feet.


    You'll get your knife when you give me your PIN, social security number, full name, and swiss bank account key and number.

    The Empire needs moneys for it's future expansion. Init that right cooler?

  9. #19
    shautieh's Avatar
    shautieh is offline Senior Member Community Builder
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    i have yet to create a bank account there, but the knife isn't ready yet, right ?

    remember i need immunity and impunity from your empire too... (don't want to get killed right after giving my money)

  10. #20
    Schiljo is offline Senior Member Long Time Member
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    Quote Originally Posted by Ishman View Post
    Wetting the feet has no affect, and I'd imagine the Gecko periodically cleans its feet.


    You'll get your knife when you give me your PIN, social security number, full name, and swiss bank account key and number.

    The Empire needs moneys for it's future expansion. Init that right cooler?
    Do you accept republic currency? *cough*

 

 
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