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Hi All, Mar 22, 2007
A physical model, such as an apple on a tilted wire for the earth
and a bare light bulb, in an otherwise dark room, for the sun, helps to
visualize this.
The area nearest the north pole, as John implies, is the first to
get 24-hr sunlight (early spring) and by the summer solstice this zone
of constant daylight has extended downward to the arctic circle.As the
season advances to fall, the zone of 24-hr light moves back up to the
pole and then, in the period from autumnal equinox to winter solstice,
24-hr darkness first arrives at the pole and then extends downward to
the arctic circle.
Yt, Dave Webster, Kentville
John Sollows wrote:
> To: Andy
>
>
>
> From: John
>
>
>
> date: march 21/07
>
>
>
> This morning on CBC radio, they talked with a person who lives way up
> north. (I didn't catch the location, but they said it was the most
> northerly year-round settlement in Canada).
>
>
>
> The settl;ement in question was Grise Fjord, on the southern coast of
> Ellesmere island. If Alert lights up about now, I suppose Grise
> lighting up a week later makes sense!
>
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