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Alternative galaxies - WAS Antikythera mechanism

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  • As I said the source of the metal can be determined with high accuracy. Not just what country but what range of hills and valley(s). Lead contains traces of uranium and that makes it easy to determine just where it comes from. It is Greek or at least the metal is. Also, there wasn't a great deal of long distance trade back then. People walked a lot.
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    • Given that the compass dates from around 200 BC in China, their level of technology was most likely equivalent or superior to that of the Greeks.

      Look at Chinese population migration and trade throughout southeast asia, Malaysia, ...

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      • The compass was not an invention, it was a discovery and a very simple one. While the Chinese did invent many things including some things to do with metal it is not clear that they did much in the way of true precision metalworking other than extremely talented making of swords and knives. But that is figuring out just how to heat and beat metals, not how to make highly accurate mathematically defined constructs. Their methods of writing did not lend itself well to mathematics for a very long time. They did understand many forms of math but in quite a different way. For instance, they did use binary a lot but that does not lend itself to complex calculations by humans. There were some that were very good at math but that was mostly later in the AD centuries.
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        • Originally posted by Evan View Post
          The compass was not an invention, it was a discovery and a very simple one.
          Magnetism is a discovery. Realizing that a magnetic object that can freely pivot always points in the same direction is a discovery. Once
          markings were added so one could determine direction the compass was invented.
          Location: Long Island, N.Y.

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          • The markings are unnecessary as long as one can tell which end is which. Birds do not have markings in their internal compass. At any rate it is not comparable. As I said the Chinese did invent many things.
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            • Originally posted by Evan View Post
              The compass was not an invention, it was a discovery
              No, the earths magnetic poles were a discovery. Balancing something magnet on a pivot so it can point to them is certainly an invention. Discovery is noticing, inventing is making.
              in Toronto Ontario - where are you?

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              • A basic compass is a pretty piece of magnetite that was being washed and then floated on something in a bowl of water. That is a discovery and would be quite obvious to many people. It isn't very special at all. I would not be at all surprised if it dates back to stone age days.
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                • and the wheel is round piece of something dating back to Og and would be quite obvious to all. Stop always always trying to sell the feed bag as good to go without running it through thresher first.
                  in Toronto Ontario - where are you?

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