Wind Tech (1 янв 1975 г. – 1 янв 1985 г.)
Описание:
This time period involved increased US government involvement in the wind energy industry. 13 experimental wind turbines collected data about different designs and which ones produced the most energy. (procon.org)Добавлено на ленту времени:
Дата:
1 янв 1975 г.
1 янв 1985 г.
~ 10 years