Warning: Undefined array key "visitor_referer_type" in /var/www/vhosts/wordinf.com/core/app/libraries/Core.php on line 98 David Mermin - My complete answer to the late 19th...
My complete answer to the late 19th century question, "what is electrodynamics trying to tell us" would simply be this: Fields in empty space have physical reality; the medium that supports them does not.