Moon Glade
Experienced
- Joined
- Mar 12, 2003
- Posts
- 56
I have trouble sleeping. My mind can't stop. So I think about dumb things. Past regrets I try and shove away with thoughts of past travels. Places I've been. Places I want to return to. Places I want to go for the first time..
Last night I quickly figured out how we arrived at 365 days in a year by creating an imaginary person counting the sunrises over a place on the horizon day-after-day until the sunrise was in that exact spot 365 days later. Easy enough. A year takes 365 days. Prehistoric places like Stonehenge and Ile Gavrinis were nothing more than giant clocks to record solstices. Probably the winter solstice was the most important because on that day the sun would start coming back and that meant warmer caves, plants growing again and less hunger.
Those thoughts brought back memories of many of the prehistoric sites I have visited and how I marveled over our ingenuity so many years before telescopes, libraries or Google. And then my sleepless mind asked, "Yes, but how did they come up with the 24 hour day? Certain that it must have something to do with sundials as the earliest clocks but why not a ten hour day with each hour consisting of 160 minutes? Then my sleepless mind asked why is an hour 60 minutes?
Prior to falling asleep I asked myself why is there 360 degrees in a circle and does that have something to do with time?
This morning I could not thank Google enough. Amazing how smart we were so many years ago and amazing how it was such a lucky accident in regard to marine navigation with the use of time. Then I tried to remember what that device for marine navigation was called and finally in the shower this morning it came to me Sextant! So much is based on the number 60 that prior to this I never gave any thought to.
Last night I quickly figured out how we arrived at 365 days in a year by creating an imaginary person counting the sunrises over a place on the horizon day-after-day until the sunrise was in that exact spot 365 days later. Easy enough. A year takes 365 days. Prehistoric places like Stonehenge and Ile Gavrinis were nothing more than giant clocks to record solstices. Probably the winter solstice was the most important because on that day the sun would start coming back and that meant warmer caves, plants growing again and less hunger.
Those thoughts brought back memories of many of the prehistoric sites I have visited and how I marveled over our ingenuity so many years before telescopes, libraries or Google. And then my sleepless mind asked, "Yes, but how did they come up with the 24 hour day? Certain that it must have something to do with sundials as the earliest clocks but why not a ten hour day with each hour consisting of 160 minutes? Then my sleepless mind asked why is an hour 60 minutes?
Prior to falling asleep I asked myself why is there 360 degrees in a circle and does that have something to do with time?
This morning I could not thank Google enough. Amazing how smart we were so many years ago and amazing how it was such a lucky accident in regard to marine navigation with the use of time. Then I tried to remember what that device for marine navigation was called and finally in the shower this morning it came to me Sextant! So much is based on the number 60 that prior to this I never gave any thought to.