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-----Original Message-----[snip]
From: Phys-l [mailto:phys-l-bounces@phys-l.org] On Behalf Of Ludwik
Kowalski
Sent: Saturday, February 02, 2013 6:15 PM
To: phys-L new
Subject: [Phys-L] To exist or not to exist
The short essay below was inspired by recent exposures. Comments will be
appreciated.
Our material world is made of physical objects; anything that has a certain
mass, and occupies a certain volume in space, is an object. Some objects,
of objects. Does kinetic energy exist in the same way as a moving car? I do
not think so. Energy, like force and acceleration, is a physical quantity
invented to describe and understand objects. Such theoretical quantities
[snip] To "exist subjectively" is not the same
thing as to "exist objectively." Do you agree?
Ludwik Kowalski