When this spirally happens, the inner part of the disk should spin faster according to the laws of angular momentum – like a figure skater spinning faster when their arms are in than when they ...

Long-Standing Space Disk Mystery Solved by Basic Quantum Physics. Published Mar 06, 2018 at 10:03 AM EST. ... These concentric loops of matter slowly spread angular momentum between each other.

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

Artist’s representation of the circular phonons. (Courtesy: Nadja Haji and Peter Baum, University Konstanz) When a magnetic material is bombarded with short pulses of laser light, it loses its ...