1. Joined
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    20 Jan '05 10:20
    Maybe if your on some moving or rotating surface, like an airplane or something.
  2. Standard memberPBE6
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    20 Jan '05 15:25
    I have to admit it, that's a stumper. Unless you can travel without moving, like a mindscapade.

    Spill it Plumber, what's the cunning solution?
  3. Standard memberThe Plumber
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    20 Jan '05 18:021 edit
    Not at sea, not using moving surfaces, not mixing magnetic and true north, etc. No tricks, honestly. You just have to think outside the box (just as you had to think outside the box to realize the north pole was the original answer).

    Hint: all of the other locations where this can occur are near, but not at, the South Pole.
  4. Standard memberPBE6
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    20 Jan '05 18:301 edit
    Originally posted by The Plumber
    Not at sea, not using moving surfaces, not mixing magnetic and true north, etc. No tricks, honestly. You just have to think outside the box (just as you had to think outside the box to realize the north pole was the original answer). ...[text shortened]... cations where this can occur are near, but not at, the South Pole.
    Aha! Very interesting.

    If the bear is less than 1 km from the south pole, the bear can't travel 1 km south (because when you get to the south pole, you're done going south).

    If the bear is exactly 1 km from the south pole, the bear can't travel west because there is no direction to go other than north.

    However, if the bear is more than 1 km from the south pole, and is at such a distance that the circumference of the circle it travels on while travelling west is 1 km, then it will make a full circle and can travel north 1 km back to where it came from! Very interesting. Of course, it will probably freeze to death unless it cuts open the carcass of one of it's friends with a light saber and sleeps inside, but that a little bit outside the question, isn't it?
  5. Standard memberThe Plumber
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    20 Jan '05 18:37
    Originally posted by PBE6
    Aha! Very interesting.

    If the bear is less than 1 km from the south pole, the bear can't travel 1 km south (because when you get to the south pole, you're done going south).

    If the bear is exactly 1 km from the south pole, the bear can't travel west because there is no direction to go other than north.

    However, if the bear is more than 1 km from th ...[text shortened]... nds with a light saber and sleeps inside, but that a little bit outside the question, isn't it?
    Well done....
  6. Standard memberAThousandYoung
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    20 Jan '05 22:58
    Wow Plumber. Very smart. Did you come up with that yourself?
  7. Standard memberThe Plumber
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    21 Jan '05 01:58
    Originally posted by AThousandYoung
    Wow Plumber. Very smart. Did you come up with that yourself?
    Of course! (not!) πŸ˜€

    Ever heard of Piers Anthony? In the early 80s he wrote a trilogy called the Adept Series. It's in one of those books (Split Infinity, Blue Adept, Juxtaposition), I don't recall which one. In the late 80s he extended the series to a seven book series, but I never read the other four.

    Piers Anthony has a habit of working little puzzles like that into his writing. Wish I could remember a few more....
  8. Standard memberAThousandYoung
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    21 Jan '05 13:301 edit
    Originally posted by The Plumber
    Of course! (not!) πŸ˜€

    Ever heard of Piers Anthony? In the early 80s he wrote a trilogy called the Adept Series. It's in one of those books (Split Infinity, Blue Adept, Juxtaposition), I don't recall which one. In the late 80s he ...[text shortened]... like that into his writing. Wish I could remember a few more....
    I loved that series. I don't remember that puzzle though. Wasn't it actually called the Apprentice Adept series though?
  9. Standard memberPBE6
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    21 Jan '05 15:23
    Originally posted by AThousandYoung
    I loved that series. I don't remember that puzzle though. Wasn't it actually called the Apprentice Adept series though?
    Yeah, I used to love those books too. They were the only source of softcore pornography available in the school library.
  10. Standard memberThe Plumber
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    21 Jan '05 19:06
    Originally posted by AThousandYoung
    I loved that series. I don't remember that puzzle though. Wasn't it actually called the Apprentice Adept series though?
    Probably - although the Piers Anthony website didn't label them as such.
  11. Standard memberPBE6
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    21 Jan '05 20:17
    Originally posted by The Plumber
    Probably - although the Piers Anthony website didn't label them as such.
    I think that answer applies equally well to my post as well.
  12. Standard memberthire
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    21 Jan '05 22:33
    Next puzzle:
    tell me ALL points on the earth that could be startingpoints...
    th
  13. Standard memberAThousandYoung
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    21 Jan '05 23:08
    Define "on the Earth" please.
  14. New Jersey
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    23 Jan '05 03:57
    There are countably infinitely many latitudes where this works.
    At the north pole, obviously it works.
    You will also end up where you started if the latitude line 1 km S of where you start is x km long, where 1/x is an integer.
    The length of the L° latitude line is EQ*cos(L°πŸ˜‰. (EQ = circumference of earth)
    You have to start 1 km above one of those solutions.
    The solutions in the northern hemisphere are less than 1 km from the pole, so they don't work.
    There are infinitely many fitting latitude lines less than 1 km from the south pole, and you have to start 1 km above those.
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    23 Jan '05 04:44
    I didn't know any mammals lived directly at the north pole. I thought it was a floating iceberg there.
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