A Timely Tip
In any long term SHTF scenario you might lose the ability to accurately measure time.
Batteries run down and people forget to wind clocks.
That's my excuse anyway, I've always been fascinated with sundials.
Ordinary horizontal sundials:
A vertical sundial in Beijing China
Armillary type sundial
If you only want accuracy to within 15 minutes or so all you have to do at our latitude is align north and south and then adjust declination.
More accuracy than that require some adjustment because of the path that the sun makes in the sky over the course of a year.
Fictional Photomontage (actual positions of the sun are just estimated and have nothing to do with the German landscape) illustrating an analemma pattern in the sky. Were one to take a photo of the sun each week for a year and combine the images taken, this pattern would be visible
They make sundials that incorporate that deviation into the dial to make for very accurate time.
I might settle for one of these in the garden area.
In any long term SHTF scenario you might lose the ability to accurately measure time.
Batteries run down and people forget to wind clocks.
That's my excuse anyway, I've always been fascinated with sundials.
Ordinary horizontal sundials:
A vertical sundial in Beijing China
Armillary type sundial
If you only want accuracy to within 15 minutes or so all you have to do at our latitude is align north and south and then adjust declination.
More accuracy than that require some adjustment because of the path that the sun makes in the sky over the course of a year.
Fictional Photomontage (actual positions of the sun are just estimated and have nothing to do with the German landscape) illustrating an analemma pattern in the sky. Were one to take a photo of the sun each week for a year and combine the images taken, this pattern would be visible
They make sundials that incorporate that deviation into the dial to make for very accurate time.
I might settle for one of these in the garden area.
