3 ms·
To my knowledge none, but there do exist problematic constants that we can't measure consistently. Famously, measurements of the gravitational constant G vary
by ChrisArgyle 11y ago
To my knowledge none, but there do exist problematic constants that we can't measure consistently. Famously, measurements of the gravitational constant G vary in a pattern that repeats every 5.9 years. There are a few theories about this systematic error but no solid supporting evidence in experiment form.
tl;dr No constants have been proven not-constant but there are some that might be pending further research
- ccozan 11y agoThis is quite interesting, is there a paper or some source of information related to this?
- Estragon 11y agohttp://www.researchgate.net/publication/274780565_Measurements_of_Newton's_gravitational_constant_and_the_length_of_day http://www.researchgate.net/publication/274780565_Measuremen...
- dr_zoidberg 11y agoHere's a relevant link: http://phys.org/news/2015-04-gravitational-constant-vary.html http://phys.org/news/2015-04-gravitational-constant-vary.htm...
- astrodust 11y agoThere was some concern that the rate of radioactive decay was altered based on the Earth-Sun distance, but that's been disproven: http://phys.org/news/2014-10-textbook-knowledge-reconfirmed-radioactive-substances.html http://phys.org/news/2014-10-textbook-knowledge-reconfirmed-... I wonder if this variation in G is similar.