developed at an unprecedented speed during
the
5th century BC, continuing up to and including
the Roman period, and beyond.
Inventions
that are credited to the
ancient Greeks
such
as
the gear, screw, rotary
mills,
screw press,
bronze
casting
techniques, water clock,
water
organ,
torsion catapult and the use of
steam
to
operate some experimental machines and toys and
a chart to find
prime
numbers
.
Many of
these inventions
occurred late in the Greek period, often
inspired by the need to improve weapons
and
tactics in war.
How
ever,
peaceful
uses are shown by
their early development of the
watermill
, a
device
which pointed to
further
exploitation on a
large
scale
under the Romans