November 2016


Today I want to talk about something that I tell you a lot, imagining that, you know what I mean: geometry. Normally I assume that this basic part of mathematics […]


As I pointed out, William George Unruh, better known as, Bill Unruh is a little-known but quite important Canadian physicist, and now you will hear him much more because he, […]


Today I want to talk about the main sequence on stars. Although it sounds a little strange its name is the majority of the stars in the visible universe and […]


The image that you see was sent by the Russian probe Venera 13 and it is the surface of Venus, taken in 1982. It is one of the few images […]