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cinema: published articles on April 2007
Powers of ten - the relative size of things
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brief illustrated history of mankind
The hearts of the Earth
The amazing Russian Matryoshka dolls
Wind Dam - a new eolian generator?
The time machine
a light sport aircraft within the reach of a mere mortal
Rio de Janeiro`s carnival
Photographs that will shock the world: General Nguyen Ngoc
The cure for Alzheimer´s disease
Ultra-light architecture
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