Major improvements to steam engine by James Watt (1 янв 1763 г. – 1 июн 1776 г.)
Описание:
In 1763 - 1773, James Watt made major improvements to the old, inefficient steam engine to the point where it became efficient enough for people to actually start using it.Добавлено на ленту времени:
Дата:
1 янв 1763 г.
1 июн 1776 г.
~ 13 years