Re: shortest day
- From: tadchem <tadchem@xxxxxxxxxxx>
- Date: Thu, 20 Dec 2007 17:00:36 -0800 (PST)
On Dec 19, 11:48 pm, aark...@xxxxxxxxx wrote:
Hi all,
I recently read in a book that december 22 is the shortest day in a
year, to what extent this is true..???
1) is there any scientific basis for this claim ?
That depends on how you define the word "day":
http://en.wikipedia.org/wiki/Day
Only for the following definition is the statement supportable, and
then only in the earth's northern hemisphere:
"The period of light when the Sun is above the local horizon (i.e.,
the period from sunrise to sunset), opposed to night."
More than you could ever want to know about how long the daylight
lasts:
http://herbert.gandraxa.com/herbert/lod.asp
Tom Davidson
Richmond, VA
.
- References:
- shortest day
- From: aarklon
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