FBI on Einstein

[JKSCHW at aol.com]

Empirical facts are those known through experience, as opposed to a priori facts like 2+2=4, known in some other way. There may also be a contrast with a theoretical fact, a fact derived from the structure of a theory. If that is a valid contrast, the constant velocity of c is a theoretical rather than a merely empirical fact. --jks

In a message dated Wed, 6 Sep 2000 11:20:15 AM Eastern Daylight Time, Daniel Davies <d_squared_2002 at yahoo.co.uk> writes:

<< 
> 
> That the speed of light is the same in all
> directions and
> does not change over time is an empirical fact. 

hrrrrmmmmmm ... not wonderfully happy with an ontology
that contains "empirical facts".  I'll happily grant
you it's a *physical fact*, but there are some pedants
out there for whom the distinction means something.

dd

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