Pessoal,
Segue uma palestra no TED do Prof. Nicholas Christakis de Harvard sobre redes sociais.
Wednesday, July 28, 2010
Friday, July 9, 2010
Um pouco de ciência - Ruben's Tube
Segundo a Wikipedia, The Rubens' tube, also known as the Standing wave flame tube, or simply flame tube, is a physics experiment demonstrating a standing wave. It shows the relationship between sound waves and air pressure.
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