December 2012
11 posts
Alcohol constrains Physical Constant in the Early... →
sciencebriefs:
Radio-astronomical observations of a distant galaxy indicate that the ratio of the proton’s mass to that of the electron has hardly changed over cosmic history. This fundamental constant of nature has changed by at most one hundred thousandth of a percent in the past 7 billion years.
Scientists measured methanol absorption at several characteristic frequencies. Methanol was...
November 2012
2 posts
August 2012
4 posts
July 2012
1 post
June 2012
19 posts
May 2012
11 posts
March 2012
8 posts
