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Dave Thomas | all galleries >> South Central Pennsylvania >> NAWCC Clock Museum > Egyptian Clepsydra
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29-DEC-2010

Egyptian Clepsydra

This actual piece is a replica, but represents a water clock made
out of alabaster. The original was found near Karnak, Egypt in 1904. It
is filled with water and as the water drips out, markings on the inside help
to track the elapsed time. It is believed to date back to around 1400 BCE.

Canon EOS 40D ,Tamron SP AF 17-50mm f/2.8 XR Di-II LD Asp IF
(E5528) 1/30s f/2.8 at 23.0mm iso800 hide exif
Full EXIF Info
Date/Time29-Dec-2010 14:45:56
MakeCanon
ModelCanon EOS 40D
Flash UsedNo
Focal Length23 mm
Exposure Time1/30 sec
Aperturef/2.8
ISO Equivalent800
Exposure Bias0.33
White Balance
Metering Mode (-1)
JPEG Quality
Exposure Programshutter priority (2)
Focus Distance

other sizes: small medium original auto