Question

Are "fundamental physical constants" really fundamental or do they vary over time? ​

Answer 1

Heya,

Here's your answer....

First of all,

The term of "fundamental physical constant" is reserved for physical quantities which, according to the current state of knowledge, are regarded as immutable and as non-derivable from more fundamental principles. Notable examples are the speed of light c, and the gravitational constant G.

Of all the fundamental constants, however, one has shown some circumstantial evidence for changing over time: α, the electromagnetic coupling constant even Paul Dirac in 1937 speculated that physical constants such as the gravitational constant or the fine-structure constant might be subject to change over time in proportion of the age of the universe.

Thanks.

Sorry baby 'wink'

Answer 2

$\huge{\boxed{\mathcal\pink{\fcolorbox{red}{yellow}{Answer}}}}$

Time-variation of fundamental constants. The term physical constant expresses the notion of a physical quantity subject to experimental measurement which is independent of the time or location of the experiment. The constancy (immutability) of any "physical constant" is thus subject to experimental verification.