the definition of radians (the angle at which the arc length equals the radius)
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Is that why they counted in 60s as well? Lucky if not.
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60 was used because it is evenly divisible by so many numbers, which makes it a convenient way if measuring things. 1,2,3,4,5,6,10,15,30
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they knew it was 365 (and some change) but 360 is a better number because it’s got more factors. like everybody else, they just periodically declared extra days/months to realign things
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Worth mentioning that 360 is 2*2*2*3*3*5, so it can be “split” conveniently in many ways (contrary to other potential approximations of the year’s duration in days)
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360 is a highly composite number, meaning it's divisible by more numbers than any positive integer less than it. These tend to be the best numbers for groups of things, 12, 24 and 60 also happen to be highly composite. That's why I'm sad that we're using the decimal system.
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