News Briefs 03-06-2016

“…What is the aim of a physical theory?”

Quote of the Day:

“If the aim of physical theories is to explain experimental laws, theoretical physics is not an autonomous science; it is subordinate to metaphysics.”

Pierre Duhem

Comments

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.
Charles Pope's picture
Member since:
23 October 2009
Last activity:
6 hours 34 min

RIP Cassius.

earthling's picture
Member since:
22 November 2004
Last activity:
35 min 23 sec

Ok first, .

But otherwise, what we are doing with "dark matter" and "dark energy" numbers is just quantifying how much our best model is different from observations.

This is not to say that our best model is wrong. It works very well, otherwise things like cell phones would not work. They rely on quantum phisics.

But remember that they work here and now. And the best model we have assumes that the laws and constants have always been as they are here and now. On the other hand, these cosmological observations are based on light that has been traveling for a very long time, from very far away.

----
We are the cat.