Название: Significant Milestones in Air Force History
Автор: Phillip S. Meilinger
Издательство: US Air Force
Страниц: 61
Формат: PDF
Размер: 22 мб
Качество: хорошее
Язык: Английский
Год: Не указан
The concept of flight has fascinated man for millennia. The minds of the ancients invented winged gods and goddesses who lived in the heavens or who traversed it in chariots of gold. The restless brilliance of Leonardo da Vinci designed a flying machine five centuries ago; but his vision, as well as those of many who followed, relied on the muscle power of man to make it work. That would not be enough. A mechanical engine would be necessary. Flight would have to be a byproduct of the industrial revolution...
