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Alberto Mejía
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Ingeniero civil, orgullosamente mexicano.
Ingeniero civil, orgullosamente mexicano.

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Google+ fue el primero en felicitarme
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Check out this video on YouTube:

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Check out this video on YouTube:

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Eiffel Tower under construction, 1887
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Simple Coordinates.
Join the Simple Science and Interesting Things Community and share interesting stuff!
https://plus.google.com/communities/117518490246975838002

In maths, very simple rules can create interesting shapes with nice properties. For example to get a cube, we can join all the 3 dimensional points where each coordinate is either 1 or -1.  The shape in the top right, the octahedron is made form all points where only one coordinate is either 1 or -1.  Also you can see how the complicated truncated octahedron shape is made in the bottom left. A more crazy shape made from rectangles, hexagons and octagons is also shown
http://blog.matthen.com/post/22911702187/in-maths-very-simple-rules-can-create-interesting

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Serbian-American inventor Nikola Tesla was born in July of 1856, in what is now Croatia. He came to the United States in 1884, and briefly worked with Thomas Edison before the two parted ways. He sold several patent rights, including those to his alternating-current machinery, to George Westinghouse. His 1891 invention, the "Tesla coil, " is still used in radio technology today. Tesla died in New York City on January 7, 1943.

http://www.biography.com/people/nikola-tesla-9504443
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