Recent content by FanticalZappy

If you have an Apple device, you could try "iTunes U". It is an app that let's you watch free lectures recorded at universities.

Recently I have been researching black holes, and came across the "Schwarzschild Radius". The wikipedia page on Schwarzschild radius's mentioned that the Sun has a radius of 3km. If that is so, then how can that be so, as that would mean that light cannot escape it. So when it said "3km", did...