Auteur: Alexander David Alexander

Support

2 Ebooks par Alexander David Alexander

David Alexander: Why Don’t Jumbo Jets Flap Their Wings?
What do a bumble bee and a 747 jet have in common? It s not a trick question. The fact is they have quite a lot in common. They both have wings. They both fly. And they re both ideally suited to it. …
PDF
Anglais
DRM
€49.70
Alexander David Alexander: Guide to the Universe: The Sun
Our knowledge of the universe has increased tremendously over the last century, and our discoveries are not over – there remain scientific mysteries that the next generation of astronomers and planet …
PDF
Anglais
DRM
€70.00