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This is a discussion on Ask A Science Question within the Science and Technology forums, part of the Topics of Interest category; Originally Posted by Monkey Fritz Define? Do you mean nanotechnology as in the nano robots of science fiction? Or do ...

  1. #21

    Quote Originally Posted by Monkey Fritz View Post
    Define?

    Do you mean nanotechnology as in the nano robots of science fiction?
    Or do you mean the use of the nanotechnology we already have?

    If you mean the latter, that would be the FDA and other medical oversight commities which won't see our current technology levels in practice for another decade. By then who knows what advancements will be available, and not being used.
    I guess what I mean is there are many many amazing applications that I have read about that are supposedly "just around the corner". I am curious to know what, if any scientific impediments there are (i.e. is it just the sheer difficulty of working precisely with subatomic particles that is not yet technologically feasible in a consistent manner yet?) Or is there some other technological or scientific hindrance? I honestly don't know much about the technology just the basic idea, and the premise of using millions of micro-robots to do everything from assemble into self-changing architecture to cell-repairing mechanisms sounds immensely exciting. Are there some specific scientific conundrums blocking this progress (for example missile defense is said to be just extremely difficult to get working mathematically), or is it just a matter of financing, or perhaps legal constraints as you seemed to allude to?

  2. #22

    Well it's a number of things.

    A: Firstly nanotechnology can refer to something as simple as, say, children's lincoln logs on a nano scale. Many new medication delivery systems are nano tech, but the sophistication is in their construction at that scale, not what they can actually do.

    B: What they can do requires precise laboratory control.

    C: There are a few nanomachines, but consider the current level of robotic technology: Robots are extremely limited in there abilities, try making a really tiny one, you have to sacrifice a lot. Nano machines are currently about as sophisticated as wheels and gears. Each machine only capable of doing one incredibly simple task.

    D: Nanocomputers do not exist yet, no computer no brain. Nano robots do not yet exist in any form I am aware of, current nano tech is analog.

    E: Should they overcome these difficulties, I am not aware of any nano power sources to run them.

    F: the afore mentioned legal difficulties before any such things can be used in human trials. That's not just a decade before those trials can begin, there is still as much as a decade of human trials before they could ever be approved. That means a fully functional nanorobot designed to fight all known forms of disease, if invented today, would not be used for up to two decades.

  3. #23

    Quote Originally Posted by Psychosmurf View Post
    Optics question. Imagine a black spot on a white surface. What color is the line separating the spot from the background?
    Quote Originally Posted by Psychosmurf View Post
    I never said that the only colors present are black and white. So far, I think @Eylrid 's second answer is the closest to the truth.
    I must know the answer!!! You have to tell us! I am dying in anticiapation here!

    Is it a rainbow? Since everything is continuous and the light waves will randomly be placed, right at the edge, some of the spectrum will happen to fall on the black dot and get absorbed and others will happen to fall on the white and get reflected. They will not be organized perfectly so that each lump of rainbow light falls on solely on one side or the other. Maybe so, mabey not?
    Eylrid and Psychosmurf thanked this post.

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  5. #24

    Quote Originally Posted by Unicorntopia View Post
    I must know the answer!!! You have to tell us! I am dying in anticiapation here!

    Is it a rainbow? Since everything is continuous and the light waves will randomly be placed, right at the edge, some of the spectrum will happen to fall on the black dot and get absorbed and others will happen to fall on the white and get reflected. They will not be organized perfectly so that each lump of rainbow light falls on solely on one side or the other. Maybe so, mabey not?
    Ahhh.... I don't know if I should say... You guys are describing what is going on near the boundary. You guys are close but there's just one..... little..... detail....
    Unicorntopia thanked this post.

  6. #25

    Quote Originally Posted by Psychosmurf View Post
    Ahhh.... I don't know if I should say... You guys are describing what is going on near the boundary. You guys are close but there's just one..... little..... detail....
    What, is this some sort of trick question where you have a colored line around the black dot?
    Psychosmurf thanked this post.

  7. #26

    ^ Uh no. Fine I'll say it.

    Basically, the question is meaningless. Color is a property of objects, and not boundaries.

    EDIT: Hehehehe! I feel so mischievous.
    Unicorntopia and Wobzter thanked this post.

  8. #27

    Quote Originally Posted by Psychosmurf View Post
    ^ Uh no. Fine I'll say it.

    Basically, the question is meaningless. Color is a property of objects, and not boundaries.

    EDIT: Hehehehe! I feel so mischievous.
    Booooooooooo....

    At first this sounded like a thin film science question.
    Unicorntopia and Psychosmurf thanked this post.

  9. #28

    Quote Originally Posted by Psychosmurf View Post
    ^ Uh no. Fine I'll say it.

    Basically, the question is meaningless. Color is a property of objects, and not boundaries.

    EDIT: Hehehehe! I feel so mischievous.
    There is no separating line. There's a line of separation.

    The boundary of the black is not the white. The boundary of the black is where black ends, not inclusive of white, and vice versa. The surface could have a hole instead of a spot and would have the same boundary. The spot could be by itself and still have the same boundary. There is no 'line' that differentiates the two - the two being different is what differentiates the two.
    Eylrid, Unicorntopia and Psychosmurf thanked this post.

  10. #29

    What are the current limitations for a wireless transfer of electricity to be possible on a large scale? e.g. Having one generator send electricity to all households in a town without wires.
    nameno1had thanked this post.

  11. #30

    Quote Originally Posted by Bote View Post
    What are the current limitations for a wireless transfer of electricity to be possible on a large scale? e.g. Having one generator send electricity to all households in a town without wires.
    Depends on the method you choose to use. Currently it requires a shitload of energy to actually get it to transmit any distance at all. Tesla was able to light a field of lightbulbs 48 kilometres away in 1896, and since then no one has been able to replicate that feat. It also depends on the way that it is transmitted. Transverse waves lose power very quickly when trasmitting energy, whereas longitutonal waves actually retain most of it.
    Eylrid, Bote, Kiproco and 1 others thanked this post.


     
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