Banca de Revista

Popular Science [USA]
How It Works

The New Black Hawk
The Army's faster, smarter upgrade to its famed helicopter

The Meanest Drill
Punch through concrete with a mini jackhammer that spins

NASA's Escape Pod
A safety system that blasts astronauts away from a crashing rocket

Edição: Abril 2009
Tamanho: 24 mb
Formato: pdf
Páginas: 109
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