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  • R Offline
    Rich O Brien Moderator
    last edited by 28 Jan 2012, 16:54

    Lets say you drill a hole through the centre of the planet (ignoring the fact that there is heat to contend with)

    Then you jump in the hole. Will you fall out the other side?

    Download the free D'oh Book for SketchUp ๐Ÿ“–

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    • G Offline
      Gaieus
      last edited by 28 Jan 2012, 16:55

      Yes. I do not even belive that Aussies do not fall off the planet. ๐Ÿ˜’

      Gai...

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      • S Offline
        solo
        last edited by 28 Jan 2012, 16:57

        If the heat does not melt you the pressure will crush you.

        http://www.solos-art.com

        If you see a toilet in your dreams do not use it.

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        • R Offline
          Rich O Brien Moderator
          last edited by 28 Jan 2012, 16:57

          incorrect....next opponents

          Download the free D'oh Book for SketchUp ๐Ÿ“–

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          • R Offline
            Rich O Brien Moderator
            last edited by 28 Jan 2012, 17:01

            incorrect....next opponent

            Download the free D'oh Book for SketchUp ๐Ÿ“–

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            • A Offline
              andybot
              last edited by 28 Jan 2012, 17:01

              no. You'd have to go faster than terminal velocity to get through.

              ...though in a vacuum, yes.

              Aw damn, already shot down. Oh well.

              http://charlottesvillearchitecturalrendering.com/

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              • G Offline
                gilles
                last edited by 28 Jan 2012, 17:36

                If gravity attracts you to the center of the earth, you should stop right there.

                " c'est curieux chez les marins ce besoin de faire des phrases "

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                • R Offline
                  Rich O Brien Moderator
                  last edited by 28 Jan 2012, 17:41

                  ooohhhh....go on.....

                  Would fall out the other side?

                  Download the free D'oh Book for SketchUp ๐Ÿ“–

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                  • G Offline
                    gilles
                    last edited by 28 Jan 2012, 17:47

                    Just stuck on center like a magnet.

                    " c'est curieux chez les marins ce besoin de faire des phrases "

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                    • R Offline
                      Rich O Brien Moderator
                      last edited by 28 Jan 2012, 17:51

                      You're saying that when you jump in you stop at the centre and don't exit the other side?

                      If so incorrect

                      Download the free D'oh Book for SketchUp ๐Ÿ“–

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                      • T Offline
                        TIG Moderator
                        last edited by 28 Jan 2012, 17:54

                        Ignoring the actually insurmountable issues of heat/pressure/radiation/forces etc... ๐Ÿ˜ฎ
                        And assuming that both ends of the hole are the same distance [to within a few meters] from the center of gravity of the earth... ๐Ÿ˜ฒ
                        If you did jump in you would fall, fall, fall... accelerating 'down' towards the center under the force of gravity [assuming 'air-resistance' you'd reach a terminal velocity - like a sky-diver], then you'd pass through the very center, and because of your momentum you would continue 'up' towards the other end of the hole... However, because you are now going against the force of gravity you'd decelerate, but you'd almost reach the other end before you slowed to a dead-stop and then started falling back towards the center again. Because your second 'start' is nearer the center then your momentum will be slightly less, as you again pass through the center and approach the other end... this time your trajectory is reversed a little nearer to the center... This cycle repeats with you falling back and forth, but getting progressively nearer the center with each reversal of trajectory. Eventually the reversals will become so frequent that you will effectively be oscillating around the center by an insignificant amount; theoretically after long enough had elapsed you might become stationary at the center, but in practice there are so many variable factors I suspect that you would never quite 'stop'...
                        Note: if you were agile enough... on the first 'fall', just as you approached the other end and slowed to a standstill you could 'grapple' onto the tunnel's wall just below the rim, so with a little climbing 'up' you could pop out at the other end... but I suspect you'd be a bit knackered by then [if not dead] !!!
                        ๐Ÿค“

                        TIG

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                        • G Offline
                          gilles
                          last edited by 28 Jan 2012, 18:00

                          I can't prove it as I'm not physician, but if it is the center that attracts you if you pass beyond due to acceleration, you should be attract back?

                          " c'est curieux chez les marins ce besoin de faire des phrases "

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                          • G Offline
                            gilles
                            last edited by 28 Jan 2012, 18:05

                            @unknownuser said:

                            by TIG on Sat Jan 28, 2012 7:54 pm

                            Ignoring the actually insurmountable issues of heat/pressure/radiation/forces etc...
                            And assuming that both ends of the hole are the same distance [to within a few meters] from the center of gravity of the earth...
                            If you did jump in you would fall, fall, fall... accelerating 'down' towards the center under the force of gravity [assuming 'air-resistance' you'd reach a terminal velocity - like a sky-diver], then you'd pass through the very center, and because of your momentum you would continue 'up' towards the other end of the hole... However, because you are now going against the force of gravity you'd decelerate, but you'd almost reach the other end before you slowed to a dead-stop and then started falling back towards the center again. Because your second 'start' is nearer the center then your momentum will be slightly less, as you again pass through the center and approach the other end... this time your trajectory is reversed a little nearer to the center... This cycle repeats with you falling back and forth, but getting progressively nearer the center with each reversal of trajectory. Eventually the reversals will become so frequent that you will effectively be oscillating around the center by an insignificant amount; theoretically after long enough had elapsed you might become stationary at the center, but in practice there are so many variable factors I suspect that you would never quite 'stop'...
                            Note: if you were agile enough... on the first 'fall', just as you approached the other end and slowed to a standstill you could 'grapple' onto the tunnel's wall just below the rim, so with a little climbing 'up' you could pop out at the other end... but I suspect you'd be a bit knackered by then [if not dead] !!!

                            Better said that I could, english isn't my native language ๐Ÿ‘

                            " c'est curieux chez les marins ce besoin de faire des phrases "

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                            • G Offline
                              gilles
                              last edited by 28 Jan 2012, 18:06

                              Rich are you still here?

                              " c'est curieux chez les marins ce besoin de faire des phrases "

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                              • R Offline
                                Rich O Brien Moderator
                                last edited by 28 Jan 2012, 18:07

                                @TIG

                                We have a winner ๐Ÿ‘

                                @Gilles

                                You had the right idea.

                                Another one?

                                Download the free D'oh Book for SketchUp ๐Ÿ“–

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                                • G Offline
                                  gilles
                                  last edited by 28 Jan 2012, 18:09

                                  Go on ๐Ÿ‘

                                  " c'est curieux chez les marins ce besoin de faire des phrases "

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                                  • R Offline
                                    Rich O Brien Moderator
                                    last edited by 28 Jan 2012, 18:16

                                    If a vehicle is travelling faster than the speed of light what happens when it turns it's headlights on?

                                    Download the free D'oh Book for SketchUp ๐Ÿ“–

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                                    • G Offline
                                      gilles
                                      last edited by 28 Jan 2012, 18:18

                                      The speeds are added.

                                      " c'est curieux chez les marins ce besoin de faire des phrases "

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                                      • R Offline
                                        Rich O Brien Moderator
                                        last edited by 28 Jan 2012, 18:23

                                        So if you were travelling next to the vehicle at the same speed would you see the light on of off?

                                        Download the free D'oh Book for SketchUp ๐Ÿ“–

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                                        • G Offline
                                          gilles
                                          last edited by 28 Jan 2012, 18:25

                                          They are on.

                                          " c'est curieux chez les marins ce besoin de faire des phrases "

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