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CCC 13/8/13

Scheduled Pinned Locked Moved The Lounge
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  • P Pete OHanlon

    Meteor showers. Did you manage to catch them during the night Dave? Truly spectacular.

    Chill _Maxxx_
    CodeStash - Online Snippet Management | My blog | MoXAML PowerToys | Mole 2010 - debugging made easier

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    Dalek Dave
    wrote on last edited by
    #6

    Sat up until 3.00am Now knackered!

    --------------------------------- Obscurum per obscurius. Ad astra per alas porci. Quidquid latine dictum sit, altum videtur.

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    • D Dalek Dave

      Sat up until 3.00am Now knackered!

      --------------------------------- Obscurum per obscurius. Ad astra per alas porci. Quidquid latine dictum sit, altum videtur.

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      Pete OHanlon
      wrote on last edited by
      #7

      'Twas worth it though.

      Chill _Maxxx_
      CodeStash - Online Snippet Management | My blog | MoXAML PowerToys | Mole 2010 - debugging made easier

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      • P Pete OHanlon

        'Twas worth it though.

        Chill _Maxxx_
        CodeStash - Online Snippet Management | My blog | MoXAML PowerToys | Mole 2010 - debugging made easier

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        Dalek Dave
        wrote on last edited by
        #8

        There was a few seconds when three streaked across the sky almost at once. And there was one really bright one that went almost horizon to horizon and left a plasma trail hanging in the air for a couple of seconds. That one was one of the most impressive I have EVER seen. Of course one must be cautious if a meteorite lands near you. Do not attempt to pick it up as it will be ferociously cold and would take your skin off.

        --------------------------------- Obscurum per obscurius. Ad astra per alas porci. Quidquid latine dictum sit, altum videtur.

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        • D Dalek Dave

          There was a few seconds when three streaked across the sky almost at once. And there was one really bright one that went almost horizon to horizon and left a plasma trail hanging in the air for a couple of seconds. That one was one of the most impressive I have EVER seen. Of course one must be cautious if a meteorite lands near you. Do not attempt to pick it up as it will be ferociously cold and would take your skin off.

          --------------------------------- Obscurum per obscurius. Ad astra per alas porci. Quidquid latine dictum sit, altum videtur.

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          Septimus Hedgehog
          wrote on last edited by
          #9

          That's exactly how the Day Of The Triffids began. That's why I didn't watch.

          If there is one thing more dangerous than getting between a bear and her cubs it's getting between my wife and her chocolate.

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          • D Dalek Dave

            There was a few seconds when three streaked across the sky almost at once. And there was one really bright one that went almost horizon to horizon and left a plasma trail hanging in the air for a couple of seconds. That one was one of the most impressive I have EVER seen. Of course one must be cautious if a meteorite lands near you. Do not attempt to pick it up as it will be ferociously cold and would take your skin off.

            --------------------------------- Obscurum per obscurius. Ad astra per alas porci. Quidquid latine dictum sit, altum videtur.

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            Lost User
            wrote on last edited by
            #10

            Dalek Dave wrote:

            Of course one must be cautious if a meteorite lands near you.
            Do not attempt to pick it up as it will be ferociously cold and would take your skin off.

            No it wouldn't. They would be warm or hot but not cold and especially not freezing cold.

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            • L Lost User

              Dalek Dave wrote:

              Of course one must be cautious if a meteorite lands near you.
              Do not attempt to pick it up as it will be ferociously cold and would take your skin off.

              No it wouldn't. They would be warm or hot but not cold and especially not freezing cold.

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              Dalek Dave
              wrote on last edited by
              #11

              Er... ? The few brief seconds when the surface temperature is very high does not impart much heat into them, but the millions of years in space makes them cold. Once they land, that surface temperature is soon reduced and the core has virtually no heat in it at all. They are frequently found with frost on them.

              --------------------------------- Obscurum per obscurius. Ad astra per alas porci. Quidquid latine dictum sit, altum videtur.

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              • D Dalek Dave

                Er... ? The few brief seconds when the surface temperature is very high does not impart much heat into them, but the millions of years in space makes them cold. Once they land, that surface temperature is soon reduced and the core has virtually no heat in it at all. They are frequently found with frost on them.

                --------------------------------- Obscurum per obscurius. Ad astra per alas porci. Quidquid latine dictum sit, altum videtur.

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                Lost User
                wrote on last edited by
                #12

                QI isn't the best of sources you know.[^]

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                • L Lost User

                  QI isn't the best of sources you know.[^]

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                  Dalek Dave
                  wrote on last edited by
                  #13

                  If a large lump of ice is fired through a blast furnace, and you put your hand on the the bit that survives, will it be hot? It is only the surface of the meteorite that gets hot, and most of that will be ablated. Once the atmosphere has slowed it down it doesn't have enough energy to friction heat it again and at 50 miles up it is still very cold. By the time it hits the ground it is frozen again. The core does not get hot at all and remains at -270 degrees for a while, slowly warming, but only to the ambient temperature of the environment. Who needs QI when one has a degree in physics and the ability to reason?

                  --------------------------------- Obscurum per obscurius. Ad astra per alas porci. Quidquid latine dictum sit, altum videtur.

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                  • D Dalek Dave

                    If a large lump of ice is fired through a blast furnace, and you put your hand on the the bit that survives, will it be hot? It is only the surface of the meteorite that gets hot, and most of that will be ablated. Once the atmosphere has slowed it down it doesn't have enough energy to friction heat it again and at 50 miles up it is still very cold. By the time it hits the ground it is frozen again. The core does not get hot at all and remains at -270 degrees for a while, slowly warming, but only to the ambient temperature of the environment. Who needs QI when one has a degree in physics and the ability to reason?

                    --------------------------------- Obscurum per obscurius. Ad astra per alas porci. Quidquid latine dictum sit, altum videtur.

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                    Lost User
                    wrote on last edited by
                    #14

                    Did you read the link, NASA Scientist trumps Degree in Physics.

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                    • L Lost User

                      Did you read the link, NASA Scientist trumps Degree in Physics.

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                      riced
                      wrote on last edited by
                      #15

                      Maybe NASA scientist does but non-existent pages don't. I got this: Sorry, the page you were looking for in this blog does not exist.

                      Regards David R --------------------------------------------------------------- "Every program eventually becomes rococo, and then rubble." - Alan Perlis The only valid measurement of code quality: WTFs/minute.

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                      • R riced

                        Maybe NASA scientist does but non-existent pages don't. I got this: Sorry, the page you were looking for in this blog does not exist.

                        Regards David R --------------------------------------------------------------- "Every program eventually becomes rococo, and then rubble." - Alan Perlis The only valid measurement of code quality: WTFs/minute.

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                        Lost User
                        wrote on last edited by
                        #16

                        Wow. So it doesn't. It was there this morning it must have been Dave deleting it. :-D

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                        • L Lost User

                          Wow. So it doesn't. It was there this morning it must have been Dave deleting it. :-D

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                          Lost User
                          wrote on last edited by
                          #17

                          http://brianclegg.blogspot.co.uk/2013/02/hitting-qi-in-asteroids.html[^] For some reason that link doesn't work, but if you follow this one it works (despite being the same link)

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