>>and I am reading an excellent book which has made me understand spacetime properly.The Fabric of the cosmos by Brian Greene
>
>I haven't read it yet, but I have a sample of another of Brian Greene's books on my Kindle, "The Elegant Universe". My youngest son recommended it to me.
>
>~~Bonnie

I should probably have read that first. The fabric of the cosmos is (so far) excellent. Best explanation of spacetime to the non mathematician I have come across.