The Proton Radius Puzzle May Have Been Solved

The Proton Radius Puzzle May Have Been Solved

Protons are the fundamental subatomic particles. Under the Standard Model, we know that protons are composite particles with three valence quarks, which, along with neutrons, form hardons. Protons…
Gregory Ryskin On Vacuum Energy

Gregory Ryskin On Vacuum Energy

Although unconventional, the ideas of Gregory Ryskin on vacuum energy sound interesting to me, so I invited him to share them with you in this guest post.  Ryskin's physics journey began with…
The Search For Dark Matter Continues

The Search For Dark Matter Continues

Dark matter is one of the most fascinating concepts in physics and is thought to account for 85% of the universe’s matter. They have been so talked about that they have taken on a semblance of fact…
Holiday Physics Card 2021

Holiday Physics Card 2021

For 100,000 years, I have written a holiday card which featured ideas I played with that year in Physics. Note, I was reporting that in binary, so for 32 years, or since 1989. Without further ado,…