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KF5JRV > TECH 30.11.16 13:21l 6 Lines 528 Bytes #999 (0) @ WW
BID : 6237_KF5JRV
Read: GUEST
Subj: Astrolabes
Path: IW8PGT<IZ3LSV<IW0QNL<JH4XSY<JE7YGF<N9PMO<NS2B<KF5JRV
Sent: 161130/1215Z 6237@KF5JRV.#NWAR.AR.USA.NA BPQ6.0.13
Astrolabes are probably the the sini qua non of ancient instruments. They have been collected for centuries, and forgeries have been made for centuries, though genuine, working, astrolabes were made in Islamic countries up through the nineteenth century. This astrolabe combines an observational instrument, with a star and solar celestial map and celestial data that allow it to be used as a sophisticated analog computer for finding the time, or predicting the positions of objects.
73 Scott KF5JRV
KF5JRV.#NWAR.AR.USA.NA
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