Many years ago, I forget where, I read an article and eternity was described as this:
'Imagine a globe of solid iron the size of the Earth. Every ten thousand years a sparrow comes along and, just once, brushes the surface with its wing. Once the globe of iron has been totally worn away by this action eternity will still not have finished.'
I've always thought that this is a very apt description of a very long time indeed.
Now, anyone out there like to calculate just how long this globe of iron would take to wear down completely?
phenious - well I suppose just ordinary iron, and the brush of a sparrows wing would be pretty weak. You've seen iron manhole (drain) covers in the road which are years old and worn down by the traffic going over them, just imagine how long it would take a sparrows wing brush just to do that!
edit - not you cadetstimp, you were posting as I was replying! -edit
Glad I could help 
Would be interesting to know but stuff of how hard the brush was along with the type of Iron. and density of the metal ect.
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