Galilei, Galileo Mechanics
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GALILEUS,
HIS
MECHANICKS:
OF THE BENEFIT DERIVED
FROM THE SCIENCE OF MECHANICKS,
AND FROM ITS INSTRUMENTS.

I judged it extreamly necessary, before our
descending to the Speculation of Mecha­
nick Instruments, to consider how I might,
as it were, set before your eyes in a gene­
ral Discourse, the many benefits that are
derived from the said Instruments: and
this I have thought my self the more ob­
liged to do, for that (if I am not mistaken)
I have seen the generality of Mechaniti­
ans deceive themselves in going about to apply Machines to many
operations of their own nature impossible; by the successe where­
of they have been disappointed, and others likewise frustrate of
the hope which they had conceived upon the promise of those pre­
sumptuous undertakers: of which mistakes I think I have found
the principall cause to be the belief and constant opinion these