YDT 2020-1 Soru=63

The creation of revolutionary products or practices
has no timetable. Great minds give birth to
innovations as inspiration hits, necessity requires,
or happenstance would have it. ---- The
Renaissance, for instance, was a period of great
intellectual exploration, an era of innovation in
arts, philosophy, medicine, engineering, and
science. Inventions of the Renaissance include the
printing press and movable type. It was also at this
time that Leonardo da Vinci (1452–1519) drew the
first plans for a flying machine, a precursor to
planes and jets that would be devised and
developed centuries later.