Analog clocks imitate sun dials and of you have amazing eye sight/precision you would only need the hour hand. If the hand is exactly on 3, it’s 3 o’clock. If the hand is exactly in the middle between 3 and 4 it’s half past 3. If the hand is 4° after 5 it’s 04:08. But because our eye sight doesn’t have super resolution we just add another hand that makes a full circle when the hour hand moves an hour. And same with seconds. Second hand makes a full circle for 1 minute.
Back to birthdays - you can do that on the other direction as well but I wouldn’t call it a clock, it’s a circular calendar. Think about a disk (like a wall clock with only one hand) and seven equal segments. The days of the week, every morning we move the hand to the next day. Another disk with 31 segments (day of the month) and another separate disk with 12 segments. We typically move that one on the first of the month to the next step.
Now of we discuss events I can point to a segment and even though she is a young kid she immediately gets the scale of things because of something happens in a few hours (let’s say she is meeting a friend) I show it to her on the normal analog clock with focus on the hour hand. But if she ask about Christmas I point on the “month” dial and she knows that it takes a very long time for that hand to move.
Typical analog clocks have all the hands on the same disk (for convenience and because it’s compact). Our “child-clock” started originally as an normal analog clock with only the hour hand and is now a normal analog clock with hour and minute hand and three more separate disks for day of the week, day of the month and month of the year.
birthdays? so you have a clock with 365 (+¼) minutes?
Analog clocks imitate sun dials and of you have amazing eye sight/precision you would only need the hour hand. If the hand is exactly on 3, it’s 3 o’clock. If the hand is exactly in the middle between 3 and 4 it’s half past 3. If the hand is 4° after 5 it’s 04:08. But because our eye sight doesn’t have super resolution we just add another hand that makes a full circle when the hour hand moves an hour. And same with seconds. Second hand makes a full circle for 1 minute.
Back to birthdays - you can do that on the other direction as well but I wouldn’t call it a clock, it’s a circular calendar. Think about a disk (like a wall clock with only one hand) and seven equal segments. The days of the week, every morning we move the hand to the next day. Another disk with 31 segments (day of the month) and another separate disk with 12 segments. We typically move that one on the first of the month to the next step.
Now of we discuss events I can point to a segment and even though she is a young kid she immediately gets the scale of things because of something happens in a few hours (let’s say she is meeting a friend) I show it to her on the normal analog clock with focus on the hour hand. But if she ask about Christmas I point on the “month” dial and she knows that it takes a very long time for that hand to move.
Typical analog clocks have all the hands on the same disk (for convenience and because it’s compact). Our “child-clock” started originally as an normal analog clock with only the hour hand and is now a normal analog clock with hour and minute hand and three more separate disks for day of the week, day of the month and month of the year.