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Sundials? Ergo shadow movement |
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But how would one realize this data is important? For example, at the Equinox, the amount of daylight and darkness at these 2 days per year are the same. |
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Just like for the birds who need to migrate when the seasons change to find food or not die from the cold of winter, even as nomads in the last ice age the change of seasons must of been remarked in order to survive. And latter to need to know when to plant the seeds in spring. To know and find out pointers to indicate when the seasons change was thus a matter of survival for us then. My two cents... |
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Position of sun, moon stars etc relates to seasonal changes. |
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How does the position of the Sun, Moon, Stars, etc. have any bearing as to how the ancients could tell some days were longer then other days without a reliable time piece? |
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Good afternoon BigJohn :smile: Do you think this is the first time around :wink: |
...@{ * 3 * }@....
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Not with Boolean math-magics :icon_eek: is my best guess. |
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Your method of finding the equinox seems the most probable. Where I live, Apaches knew about the equinox probably via the same method as you have mentioned. What I suspect the ancients used to measure time was some form of water clock. Knowing when the sun is directly above, a cylinder could be filled with water with a small whole in the bottom. After much trial and error, they would know how much water would be needed in the cylinder so as to leak out of the cylinder from high noon to the next high noon. The Babylonians used a base 10 and base 60 number system. The base 60 number system probably came about because of trade. 12 played an important part in their number system. Before they had mastered how to measure time, they probably believed the length of daylight and darkness was probably of equal length. With a calibrated water tower calibrated for 1 day, they could easily divide the height of the water in the water clock into 24 equal parts. With a base 60 number system, they could possibly calibrate the water tower down to the minute. |
..Space ( Time *) i (* Time ) Space....
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Sundial if not others for reliability. Modern Scientist know that the height of the largest tetrahedron we know to exist in Universe that is on Mars. The know because of the shadow length and other data. Sundials use shadows. |
As already discussed several times, how can a sundial be used after the sun 'sits'? |
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