1. When did Hero live?
2. What were his famous inventions?
3. Why is his book on mechanics so important for the future of the machinery?
4. What are the five principles of machinery which were listed by Hero?
5. Why were the inventions described in Hero's book useless?
Задания для самостоятельного выполнения
Подготовить монологическое высказывание по теме «Основные физические явления» (12-14 предложений).
Выполнить лексико-грамматические упражнения по теме.