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Ask the experts.... Trivial questions

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  • #46
    Buggered if I know...I'm a biochemist after all
    Speaking of Erith:

    "It's not twinned with anywhere, but it does have a suicide pact with Dagenham" - Linda Smith

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    • #47
      Originally posted by reds4ever
      here's a serious one then Prov, Krazy,

      in a classical newtonian telescope, can you see the secondary mirror, when you look through the eyepiece? if not, why not? the light passes it?
      Its image is scattered across the entire field of view, rendering it invisible. This is because it's so much closer to the primary than the potential targets. At least, this is what my hastily-drawn ray diagram is telling me.
      12-17-10 Mohamed Bouazizi NEVER FORGET
      Stadtluft Macht Frei
      Killing it is the new killing it
      Ultima Ratio Regum

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      • #48
        Originally posted by Provost Harrison
        Buggered if I know...I'm a biochemist after all


        sorry, i had in in my head you were a physics PHD for some reason?

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        • #49
          Originally posted by KrazyHorse


          Its image is scattered across the entire field of view, rendering it invisible. This is because it's so much closer to the primary than the potential targets. At least, this is what my hastily-drawn ray diagram is telling me.
          ...got you thinking though eh? it's a bit a of a head wrecker isn't it?

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          • #50
            What are the little plastic thingies on the ends of my shoelaces called?
            <p style="font-size:1024px">HTML is disabled in signatures </p>

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            • #51
              Originally posted by loinburger
              What are the little plastic thingies on the ends of my shoelaces called?
              aglets
              Concrete, Abstract, or Squoingy?
              "I don't believe in giving scripting languages because the only additional power they give users is the power to create bugs." - Mike Breitkreutz, Firaxis

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              • #52
                I actually know that, but I can't remember right now.

                It might be "dag".

                EDIT: IW's right.
                12-17-10 Mohamed Bouazizi NEVER FORGET
                Stadtluft Macht Frei
                Killing it is the new killing it
                Ultima Ratio Regum

                Comment


                • #53
                  Originally posted by Immortal Wombat
                  and hoopoes (Upupa epops)

                  Why do I know the latin name for the hoopoe?
                  Because it's comedy. I always remember it as well.

                  Bugs - P G Wodehouse used the interesting fact that disgruntled appears to have no "positive" in Code of the Woosters. Bertie narrates, with respect to possibly Jeeves, but I fancy not (I can't find the actual quote right this minute):

                  I could see that, if not actually disgruntled, he was far from being gruntled
                  The church is the only organisation that exists for the benefit of its non-members
                  Buy your very own 4-dimensional, non-orientable, 1-sided, zero-edged, zero-volume, genus 1 manifold immersed in 3-space!
                  All women become like their mothers. That is their tragedy. No man does. That's his.
                  "They offer us some, but we have no place to store a mullet." - Chegitz Guevara

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                  • #54
                    How do you solve problems of "sin x + x = a" type.

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                    • #55
                      Newtonian regression.
                      12-17-10 Mohamed Bouazizi NEVER FORGET
                      Stadtluft Macht Frei
                      Killing it is the new killing it
                      Ultima Ratio Regum

                      Comment


                      • #56
                        Dunno what that is, but I'd say Taylor expansion.
                        "Beware of the man who works hard to learn something, learns it, and finds himself no wiser than before. He is full of murderous resentment of people who are ignorant without having come by their ignorance the hard way. "
                        -Bokonon

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                        • #57
                          Speaking of Erith:

                          "It's not twinned with anywhere, but it does have a suicide pact with Dagenham" - Linda Smith

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                          • #58
                            No, because to get any degree of accuracy you'll need 5+ terms, leaving yous with a daunting polynomial.
                            12-17-10 Mohamed Bouazizi NEVER FORGET
                            Stadtluft Macht Frei
                            Killing it is the new killing it
                            Ultima Ratio Regum

                            Comment


                            • #59
                              Newtonian regression: take a guess (X0). Make a better guess (X1) based on how close X0 got you and the slope at X0. Rinse, repeat as often as required.
                              12-17-10 Mohamed Bouazizi NEVER FORGET
                              Stadtluft Macht Frei
                              Killing it is the new killing it
                              Ultima Ratio Regum

                              Comment


                              • #60
                                here's an easy one



                                prove that

                                x^n + y^n = z^n

                                has no non-zero integer solutions for x, y and z when n > 2.


                                i do have a proof, but I can't be arsed to write it down here

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