Thanks for your reply. Robin (my favorite garden bird :-)). A well-known scientist (some say it was Bertrand Russell) once gave a public lecture on astronomy. He described how the earth orbits around the sun and how the sun, in turn, orbits around the center of a vast collection of stars called our galaxy. At the end of the lecture, a little old lady at the back of the room got up and said: "What you have told us is rubbish. The world is really a flat plate supported on the back of a giant tortoise." The scientist gave a superior smile before replying, "What is the tortoise standing on?" "You're very clever, young man, very clever," said the old lady. "But it's turtles all the way down!"
I'll leave such questions to the philosophers. As far as I'm concerned we are simply building models of material behavior. I find my model more powerful than the conventional one. The discovery of the three equations of state for water, for example, should have been made by physicists or chemists, not by a retired engineer. It's not rocket science is it? On Fri, 8 Jul 2022 at 21:51, Robin <[email protected]> wrote: > In reply to Frank Grimer's message of Fri, 8 Jul 2022 10:21:32 +0100: > Hi Frank, > >> > >> why do like charges repel, and unlike charges attract? > > > > > >Because one is a source, the other is a sink at the bottom of a deep > ocean. > > That's certainly one possibility. However it raises even more questions. > E.g. what is the ocean? (made of?) > Or delving even deeper, what is reality? > [snip] > If no one clicked on ads companies would stop paying for them. :) > >

