THis has been a very interesting thread ( I *am HMB BTW!)
I was very interested when yu said lonlymum
'You see, I am an historian, a psychologist, a geographer, a philosopher, anything but a physicist! '
As a psuchologist you have to be a tiny bit of a physicist, because the nervous system 'works' by electricity. I can only type this message because of millions and millions of sodium and potassium ions moving across the membrane of my nerves....creating a potenetial difference across the memvrane, in other words a difference in voltage....so physics!
Now you can say that you done need to know that in your every day life, and you'd be right. But we don't 'need ' to know that much, but life is so much more amazingly richer of you do.
For example it is an astonishingly boring fact that in a water molecule part becomes a little bit negative and part becomes a little bit positive.....because some atoms are more 'greedy' for electrons. You can love you life without ever knowing this fact. However if this didn't happen, no life could exsist. Without this difference protiens would just be long chains of amino acide, there could be no enzymes, no building blocks for cells, no cells, and no living things. I taught that to my sixth form not that long ago and it totaly blew their minds. WE only exsis because of a sub microscopic shift in electrons. Amazing. Not essention to know, but essential to happen and mind blowing to understand.
everything is physics. You don't have to understandit, but it is so much more fun if you do.