Eduardo Guerras Valera
Apparently, this user prefers to keep an air of mystery about them.
15 Gauge covariant derivative in different books Feb 24 '13
15 What was Albert Einstein's proof for $E=mc^2$? Nov 10 '12
10 How does my hand amplify an FM radio signal? May 10 '13
10 What is the Earth truly rotating about/revolving around? May 30 '13