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Headlights That See Through Rain and Snow

wisebabo writes "I think it was Newton who said if you knew the position and velocity of every particle in the universe, you could predict the future down to the effect the flutter of a sparrow's wing would have on the weather. Aside from quantum indeterminacy (which, of course, he knew nothing about) and questions of free will, it is clear we are a long long way from getting even close to the theoretical limits of prediction. Still, here's something that, to me, is very impressive. Some researchers manage to track raindrops (or snowflakes) in front of a light and, in real time, change the beam so that they are not illuminated! This drastically reduces glare. The obvious application is for driving cars in inclement weather. I'm hoping we're entering a new age where computers (and cheap sensors) have become so powerful as to make possible a whole host of 'magical' (like Arthur C. Clarke predicted) applications."

6 of 210 comments (clear)

  1. Re:Magitech by c0lo · · Score: 4, Informative

    If the internet has taught me anything, it is that hackers increase advertisements, ...

    Lucky you. Internet taught me Rule 34.

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    Questions raise, answers kill. Raise questions to stay alive.
  2. You're right! It was Lap Place by wisebabo · · Score: 4, Informative

    "We may regard the present state of the universe as the effect of its past and the cause of its future. An intellect which at any given moment knew all of the forces that animate nature and the mutual positions of the beings that compose it, if this intellect were vast enough to submit the data to analysis, could condense into a single formula the movement of the greatest bodies of the universe and that of the lightest atom; for such an intellect nothing could be uncertain and the future just like the past would be present before its eyes."

    — Marquis Pierre Simon de Laplace

    Ok, I didn't get the quote exactly right but I think I captured the gist of it.

  3. Quantum indeterminacy ?! by slb · · Score: 3, Informative

    Big misunderstanding about Quantum Physics: It is not because our interpretation of quantum states is probabilistic that quantum physics are NOT deterministic. There may perfectly well be a deterministic behavior of quantum physics, it's just that so far we can only describe is with non-deterministic mathematics. See the Copenhagen Interpretation

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    http://www.transparency.org
  4. Re:Wow! by Exrio · · Score: 2, Informative
    Before the grammar Nazis get me, here's the corrected version without the incorrect grammar:

    Yes. I like my statements the way I like my power supplies: Redundant; which is the way I like my statements.

  5. Anyway, I think he's talking about Laplace. by Rei · · Score: 2, Informative
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    Rock Us, Dukakis.
  6. Re:Cut out that "free will" crap. by Alex+Belits · · Score: 3, Informative

    or if determinism necessarily frees us all of ultimate responsibilty.

    No, it does not.

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    Contrary to the popular belief, there indeed is no God.