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"The early use of the biological example was to inform us that flight was possible at all." If there had never been any birds, would(n't) we have invented plan
by Hexstream 17y ago
"The early use of the biological example was to inform us that flight was possible at all."
If there had never been any birds, would(n't) we have invented planes eventually anyway?
- davi 17y agoI bet we wouldn't have started thinking about it in the 9th century... http://en.wikipedia.org/wiki/Abbas_Ibn_Firnas http://en.wikipedia.org/wiki/Abbas_Ibn_Firnas