Originally posted by Hanslune
Advanced stone work. There would be no skyscrapers, no 10-key adding machines, no computers, no massive steel bridges, nor any other large
technological advancement reminder of any kind. No satellites.
Hans: Perhaps but in many areas, huge chunks’ of concrete, masses of brick, glass, ceramic, gems, refined metal, plastic, etc. Besides the regular
trash and buried bones. There would still be satellites up in the higher orbits and stuff on the Moon and Mars. The pyramids will still be there
too!
Hey Hanslune
I wonder if maybe you're giving the materials we use today too much credit. I'm not a scientist, not by a long shot, and nor do I study archeology
as anything more than a passing hobby. However, one thing I remember from my Statics class while I was taking civil engineering was that the concrete
used today has a set life span of roughly 100 years. After which point it begins to degrade and rather rapidly it will revert back to mortar mix and
sand or gravel, maybe in as little as another 200 years (depending on its exposure to the elements). Asphalt similarly degrades over a relatively
short period of time 25 years or so, longer depending on the mix and it's exposure. Even corrosion resistant metals would eventually revert to either
their base elements or rust away, or possibly (if sufficiently protected from the elements) get buried under hundreds of tonnes of earth and stone.
And all that would take place in less that 1000 years... but of course that's saying there is no one left to maintain them, but either way our
civilization (the buildings and materials) would effectively be gone forever in a tenth of the time that Egypt, Babylon or Sumner have laid buried.
As for spoken language it is forever evolving, which means if there was a mass extinction tomorrow, the survivors could be speaking an entirely
different language than us in less than a couple hundred years. If you want an example of this look no farther than the English language. We currently
have words in our language that didn't exist 200 years ago, not too mention some of the words have changed their meaning. A good example of this is
the word Gay 200 years ago, even as little as 50 years ago, meant happy now it means Homosexual.
Culture, that's something that would take quite sometime to get rid of, mostly because it would comfort people to have something of the 'old' world
to hold onto. Even still a couple hundred years and most of the staples of our civilization would loose their meaning or be changed to meet different
requirements.
Meh this is all really just a rant, and as I said I have no backing to these claims other than what I can remember from a class I took almost a decade
ago now. Also sorry for semi hijacking your thread.
However on topic, I do have a question that maybe someone who has more knowledge in archeology might be able to answer, and hey it's even semi on
topic

. Is it possible that an advanced civilization could have been missed if only because another civilization rose up on its remains either
destroying the previous ones 'foot print' or simply over writing it effectively hiding it from our notice?
Edit: Fixed a couple spelling mistakes.
[edit on 24-12-2008 by looneylupinsrevenge]