Cosmographia is a remarkable book from many standpoints.
The book is rich source of illustrations of instruments and
contains instructions for their use. The instruments shown in
Cosmographia were mathematical instruments. These instruments,
like cosmography itself, were not seen to yield information about
the function of the natural world. Mathematical instruments were
used only for measurement and calculation of time, the
heights of towers at a distance or the relative angular positions
of stars and planets. Not until the 17th century were instruments
used for more than measurement, when they were employed in natural
philosophy experiments. |