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Georg Purbach
Georg Purbach
(
1423
-
1461
) was a
German
astronomer and mathematician. He is credited with the invention of several scientific instruments, including the
regula[?]
, the
geometrical square[?]
, and the "
Jacob's Staff[?]
."
Purbach was the author of a seminal work in
astronomy
,
Theoricae novae planetarum
.
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