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Originally posted by Gazrok
Interesting idea... But what if they never even "flew" normally? Suppose they developed a way of warping time/space, prior to even thinking about flight? Sound weird? Maybe... But what if they never had birds or insects on their planet.... Would they have even considered flight at all? Perhaps they came up with a warping technology before cars, and simply warped from place to place?
There are so many possibilities, and unknown variables...it'd all be pure speculation....
Originally posted by mpeake
Originally posted by Gazrok
Interesting idea... But what if they never even "flew" normally? Suppose they developed a way of warping time/space, prior to even thinking about flight? Sound weird? Maybe... But what if they never had birds or insects on their planet.... Would they have even considered flight at all? Perhaps they came up with a warping technology before cars, and simply warped from place to place?
There are so many possibilities, and unknown variables...it'd all be pure speculation....
I had thought about that too...I mean, the main reason we humans thought flight was possible is because we had birds to watch and learn from. Without birds to use as a reference for the principles of flight, who knows what avenue of travel we might have gone in. If they advanced in tech over "X" amount of years and never attempted flight until the height of thier tech age, then I guess it's possible that many of the steps we went thru could have been skipped.
[edit on 24-2-2005 by mpeake]
Originally posted by worldwatcher
it is interesting to think about, especially if you entertain the thought that aliens are just us from the future, then yeah there would have been a natural progression of flight
But if aliens are as complex and intelligent as I think they could be, then I would probably go with Gaz's theory that they might have completely skipped all those steps and just figured out a way how to do things right the first time.
thinking about it a bit more, you have to wonder what if we have been witness to their progression, started with saucers, then triangles, then cylinders, then lights and perhaps now invisible stealth crafts that we don't even see.....hmmmmm
[edit on 2-24-2005 by worldwatcher]
Of course, the supply of iron would be less available, as would other massive elements necessary for the production of oxygen-carrying hemoglobin and other components of living things. New Earth has a much higher fraction of rocks (siliconbased compounds) and fewer metallic ores. it is possible that complex life-forms may evolve using fewer metals in the molecular building blocks. But it remains unanswered whether these life-forms could evolve within the lifetime of a star like the Sun.
Simple life-forms appear throughout Old Earth's geological record, implying that forming life is relatively straightforward. More complex life-forms on Old Earth depend greatly upon heavy elements for bony structures and for complex molecules such as iron-rich hemoglobin. These life-forms didn't appear until fairly recently in history. But on New Earth, which doesn't have the benefit of an abundance of heavy elements, complex or sentient life-forms may take too long to evolve.
The low abundance of iron and the resulting lack of a planetary magnetic field might preclude the development of complex life-forms. But if advanced life-forms can develop before the Sun uses up its nuclear fuel and becomes a red giant, they will clearly be of a different sort than we find on our Earth. And the diminished quantitites of iron, nickel, copper, zinc, tin, silver, and gold will present inhabitants of New Earth an interesting challenge for the development of a technologically based civilization.