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Science Fiction and Fantasy Media
Sci-Fi Writing and World Building
How do you measure time on a tide locked planet?
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[QUOTE="jrmichler, post: 6833385, member: 638574"] Three possibilities: 1) Circadian rhythm. It is reasonable for a science fiction author to assume that the inhabitants of this world need regular sleep, and that they will iterate to a regular cycle of sleep and wake. The human cycle time (circadian rhythm) in the absence of light is slightly longer than 24 hours, and is reset daily to 24 hours by light. In the absence of light changes, a different time can easily be justified. 2) Pulse rates in a society of fit adult humans average about 60 beats per minute. When a primitive society advances to some level of civilization (the concept of numbers), the people start to notice things like their pulse. That gives a short time interval. 3) Then the local genius tries to count the number of pulse beats in one sleep wake cycle and invents large numbers. Large numbers are larger than the number of fingers and toes/claws on one person. This is the beginning of math, and thus a possible start of civilization on that planet. Plus, as mentioned above, even if only occasionally visible, the moon and annual star cycle. [/QUOTE]
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How do you measure time on a tide locked planet?
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