Did you know? Tullio Levi-Civita (1873–1941), an Italian mathematician, was famous for his work on tensor calculus and its applications in the theory of relativity.

http://en.wikipedia.org/wiki/Tullio_Levi-Civita

[dohtml]<div style="font-size: 12pt; color: black; font-family: Comic Sans MS"><p>Did you know? More precisely, tensor calculus is applied in the general theory of relativity, which is an extension of the special theory of relativity to cover gravitation and accelerating frames of reference. Gravitation may be regarded as an effect of the curvature or warping of space–time in the vicity of large masses. I have just read about <font face="Arial" size="2">general relativity</font> in the spread “Quantum Theory and Relativity” under the section <font face="Arial"><b>The Nature of the Universe</b></font> of <a target="_blank" href="http://z8.invisionfree.com/DYK/index.php?showtopic=388&view=findpost&p=3617172"><i>The Guinness Encylopedia</i></a>. B)</p></div>[/dohtml]