Physics

Groups of Snarky Puzzle Answers

Looking at the list of snarky puzzles, games with simple groups was a recurring theme. March 20, A Toy Model For Q 8 Snarky puzzle What is required so that a system undergoing change can be described just as accurately by the group Z 4 as by Q 8? Backgroun ...

Blog Post - Doug Sweetser - Apr 20 2012 - 7:03am

Moment Zero

This is my first article in here. I found Science 2.0 all by accident, looking for articles to update my scoop.it journal focused on Nuclear Physics (in case you are interested here it is). My first and biggest question was the name of this blog hosted in ...

Blog Post - Theo Mertzimekis - Apr 18 2012 - 8:59am

Dark Matter Theory Takes A Hit

Widely accepted theories of dark matter,  a mysterious invisible substance that can only be detected indirectly by the gravitational force it exerts, expect the solar neighborhood to be filled with the stuff- but it isn't, at least as far as can be de ...

Article - News Staff - Sep 7 2012 - 9:13am

SUSY And The Silence Of The (Roasted) Lamb

I am just back from a vacation to Greece, where last Sunday was orthodox Easter. My fiancee Kalliopi is Greek, and it was about time for me for me to experience a bit of Greek customs. So we flew to Athens, and then headed to Salamina, where I had a lot of ...

Article - Tommaso Dorigo - Apr 18 2012 - 5:27pm

W Bosons Weighted To One Part In 5359

A couple of weeks ago the CDF and DZERO experiments have produced a combination of their measurements of the W boson mass. Besides two older determinations of this fundamental parameter of the Standard Model, the new 2.2/fb measurement by CDF and the 4.3/f ...

Article - Tommaso Dorigo - Apr 21 2012 - 10:36am

One Inverse Femtobarn Pocketed Already

The LHC is ramping up in instantaneous luminosity according to schedules, and has just surpassed the measure of one inverse femtobarn of collisions delivered to the CMS experiment, as shown in the picture below. The peak instantaneous luminosity shown belo ...

Blog Post - Tommaso Dorigo - Apr 20 2012 - 11:08am

Planck's Variable of Motion and its Relationship to Planck's Constant

As seen in  the article on the hydrogen atom  the value of a number numerically equivalent to Planck's reduced constant comes from the equations for the energy of the electron as  from the self-field theory (SFT) formulation and can be calculated fro ...

Blog Post - Tony Fleming - Apr 29 2012 - 6:13pm

24 Steps To The Precession Of The Perihelion Of Mercury

I tried to figure out the precession of the perihelion of Mercury calculation out three or four times from my collection technical books on gravity.  There was never enough detail for me to follow their work.  The authors can rightly figure that anyone re ...

Article - Doug Sweetser - Mar 31 2016 - 9:30pm

What Is The Geometry Of Spacetime? — Introduction

Many people struggle with, and even rail against, Einstein's Special Theory of Relativity.  The way it is usually taught or presented often seems to make it appear to be ever so complex, far too abstract and opaque, and even downright "hokey&quo ...

Article - David Halliday - Nov 26 2012 - 7:27pm

Spot The Higgs In The DZERO VZ Mass Plot

When I started a career in particle physics, joining the CDF experiment at the Fermilab Tevatron proton-antiproton collider about two decades ago, the search for a particle decay signal into hadronic jets was not something one would undertake lightly at a ...

Article - Tommaso Dorigo - Apr 26 2012 - 10:37am