Эротические рассказы

Why doesn't the sky fall down on our heads?. Aydogan KocМатематика.

Название
Why doesn't the sky fall down on our heads?
Автор:
Aydogan Koc
Серия:
Жанр:
Математика
Год выпуска:
0
isbn:
9783748557166
Аннотация:
Why is there no air in space? How does lift arise? What is a Sonic boom? How does a propeller work? Why do migratory birds fly in V formations? Why do airplanes fly so high? Aerospace is full of mystery!
Aeronautical and space questions answered in a simple and understandable way!
Яндекс.Метрика