Physics

The Quote of the Week: Economical Numbers

The Quote of the Week: Economical Numbers

“There are 10^11 stars in the galaxy. That used to be a huge number. But it's only a hundred billion. It's less than the national deficit! We used to call them astronomical numbers. Now we should…
The Lead Zeppelin And Buoyancy

The Lead Zeppelin And Buoyancy

When a feather or a plastic bag or almost anything light is placed in water, these items will generally float.  This is easy to understand if you think of water being more dense than the other…
A Paper on Leptonic CP violation

A Paper on Leptonic CP violation

I received from Ravi Kuchimanchi, the author of a paper to be published in Phys. Rev. D, the following summary, and am happy to share it here. The paper is available in the arxiv. Are laws of nature…