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Why are the increments for angles and for time similar in name and quantity? eg. Angles - 60 seconds = 1 minute, 60 minutes = 1 degree
and Time - 60 seconds = 1 minute, 60 minutes = 1 hour
— Preceding unsigned comment added by 86.160.91.201 ( talk) 17:12, 18 July 2011 (UTC)
Pars minuta prima, "first small part", was used by Ptolemy for one-sixtieth of a circle, later of an hour. Next in order was secunda minuta, which became second.
Mathematics desk | ||
---|---|---|
< July 17 | << Jun | July | Aug >> | July 19 > |
Welcome to the Wikipedia Mathematics Reference Desk Archives |
---|
The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
Why are the increments for angles and for time similar in name and quantity? eg. Angles - 60 seconds = 1 minute, 60 minutes = 1 degree
and Time - 60 seconds = 1 minute, 60 minutes = 1 hour
— Preceding unsigned comment added by 86.160.91.201 ( talk) 17:12, 18 July 2011 (UTC)
Pars minuta prima, "first small part", was used by Ptolemy for one-sixtieth of a circle, later of an hour. Next in order was secunda minuta, which became second.