Ngày tải lên :
12/05/2014, 16:39
... domesticated sheep, goats, donkeys, and later, horses and camels,
Every stage in the domestication of plant
and animal life requires inventions, which
begin as technical devices and from
which flow scientific ... permanent addition of technol-
ogy, leaving us thousands of devices we still use, from needle and thread
to the hammer and chisel and the cup and pitcher.
By the time of the Roman Empire, mankind ... latches, and such everyday
items as tables, benches, shelves, shutters, cabinets, bottles, and metal
utensils. Concrete, chains, solder, anvils, and hand tools for working
wood and stone were part...