По кнопке выше можно купить бумажные варианты этой книги и похожих книг на сайте интернет-магазина "Лабиринт".
Using the button above you can buy paper versions of this book and similar books on the website of the "Labyrinth" online store.
Реклама. ООО "ЛАБИРИНТ.РУ", ИНН: 7728644571, erid: LatgCADz8.
Airfare of today and the future
Издательство:Constable and company LTD.
Автор:Edgar C. Middleton
Год издания: 1917
Язык: английский
Страниц:230
Формат: PDF
Размер: 22 Mb
WITH Aviation we may say that we have reached the fifth step in the cycle of world progression. The exploration and the mastery of the seas opened up a hitherto unknown world to the peoples of the Middle Ages. Later the development of the steam engine pushed on civilization and commerce apace. After came the steamer upon the seas. Electricity gave the world a new and far-reaching motive power, and almost entirely replaced manual labour. But the advent of Aviation changed for all time the conditions of the world. As a factor of war it revolutionized every military principle and theory. As vessels of commerce, aircraft will have reduced time to a minimum, and rendered distance almost oblivious ; bringing every far comer of the earth within easy reach of the more populous centres. So much has already been accomplished in ten years, that one dare hardly predict what the future holds in store.
Купить бумажную книгу или электронную версию книги и скачать