GM Jackson Physics and Mathematics

Does the surface of a black hole contain its information? Is our universe really a hologram? In the video above, Leonard Susskind makes...

How do we measure time? Normally we take some event that happens over and over again, and, we assign it a time unit. For example, the c...

In the beginning, there was order, a very hot singularity, but as time progressed the universe expanded and cooled--and became more disor...

According to Hollywood and even some scientists, going back in time means seeing history repeat itself. We worry that if we interfere wi...

The universe is getting bigger and colder. We are told that one day it could suffer a heat death. By contrast, the early universe was s...