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Post by zeb on Aug 22, 2020 18:23:06 GMT
Their time keeping system divided time into day and night, and then day and night into 6 equal partitions. Since the length of the day and night varies seasonally anywhere except at the equator, they had to constantly adjust the length of the time unit. They built clocks that could function in this time system! museum.seiko.co.jp/en/knowledge/relation_16/ |
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Post by bfhammer on Aug 22, 2020 19:21:24 GMT
Am I only reading this now at Sheep o'clock?  I am far too  to be an Edo period Japanese person. |
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Post by zeb on Aug 22, 2020 23:24:04 GMT
Am I only reading this now at Sheep o'clock? I am far too to be an Edo period Japanese person.  I would have probably been a peasant, so I wouldn't have had time to be lazy. |
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Post by marsss25 on Aug 22, 2020 23:29:57 GMT
Very cool, they must have moved the weights to adjust...
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Post by marsss25 on Aug 22, 2020 23:30:21 GMT
Am I only reading this now at Sheep o'clock? I am far too to be an Edo period Japanese person. Lol! |
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Post by zeb on Aug 22, 2020 23:49:41 GMT
Very cool, they must have moved the weights to adjust... Yes, they moved the weights to adjust when they used a foliot escapement. Later, when they switched to springs or pendulums, they used dials that could be adjusted. |
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Post by John Lind on Aug 23, 2020 13:17:27 GMT
I don't recall ever reading about this temporal timekeeping scheme. Very driven by sunrise/sunset. Time is measured by astronomical events, whether it's orbits about the sun, rotational revolutions, etc. Civil timekeeping is driven by a need to know when it's "time" to perform a task. I'm going to dig deeper to discover why the Japanese employed a temporal scheme driven by local sunrise and sunset. It served some purpose in how it was structured - or it wouldn't have been structured in that manner. Thanks for sharing this.
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Post by zeb on Aug 23, 2020 14:52:01 GMT
I don't recall ever reading about this temporal timekeeping scheme. Very driven by sunrise/sunset. Time is measured by astronomical events, whether it's orbits about the sun, rotational revolutions, etc. Civil timekeeping is driven by a need to know when it's "time" to perform a task. I'm going to dig deeper to discover why the Japanese employed a temporal scheme driven by local sunrise and sunset. It served some purpose in how it was structured - or it wouldn't have been structured in that manner. Thanks for sharing this. You're welcome! I'm not sure how I came upon it. It was referred to in something I was reading. I'm just going to shoot from the hip, and say that it was a result of the feudal, agricultural based culture of the era, where the important thing was getting things done during the daylight hours, however long that was. Just my guess. Day and night were the earliest measure of time, and the next step would be to divide up that natural division into smaller segments. |
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