Physics

Quantum Vacuum: How To Balance Nothingness

Quantum Vacuum: How To Balance Nothingness

What is nothingness? It's a philosophical question, to be sure, but in physics the ground state of the universe can't be described by the absence of all matter, contend some theoretical physicists.…
Sixty Nanoseconds

Sixty Nanoseconds

In the OPERA experiment, the distance between CERN and Gran Sasso was approximately 450 miles. The difference between the neutrino arrival and the calculated speed of light was approximately 60…
As Is Well Known About Elliptic Orbits

As Is Well Known About Elliptic Orbits

When we teach, and even communicate with people whom we assume to belong to some sort of common circle with ourselves, we simply assume that our audience knows or at least have heard about certain…
Four Papers Worth Browsing

Four Papers Worth Browsing

A routine check of the hep-ex preprints in the Cornell Arxiv revealed today some interesting papers worth giving a look. At least, they are interesting to me: don't expect me to publicize stuff I do…
Gravity is a Mystery (in words, no equations)

Gravity is a Mystery (in words, no equations)

Gravity continues to work fine, even though we don't know why. Newton wrote down the first calculus based description. Gravity worked at a distance for reasons beyond our reach. Einstein developed a…
How SUSY Gets Excluded: A New ATLAS Search

How SUSY Gets Excluded: A New ATLAS Search

October is passing and the neutrino saga continues to make headlines here and there, but I know that the excitement is bound to slowly dampen, as the preprint claiming superluminal speeds ages in the…