8/12/2002: Digital sundial

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8/12/2002: Digital sundial

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08-16-2002, 03:32 PM

MaggieL

in the Hour of Scampering

Join Date: Jan 2001

Location: Jeffersonville PA (15 mi NW of Philadelphia)

Posts: 4,060

Re: Re: Re: 8/12/2002: Digital sundial

Quote:

Originally posted by russotto
Two minute precision. If it doesn't correct for true solar v. mean solar, the accuracy is much less than that.

Point well taken.

Another digital sundial...

http://www.deutsches-museum.de/ausst...s/e_sonne1.htm

I don't think these use either polarized light or holography, I might be mistaken.

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Last edited by MaggieL; 08-16-2002 at 03:34 PM.

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