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In the absence of an other information I would say these were, in order of probability:
1. Drawn in recent history
2. The result of watching someone with a function generator and scope
3. Imagined patterns that, by chance, closely resemble 2
Originally posted by intrptr
reply to post by tgidkp
a characteristic instability of a clock pulse.
Would you mind elaborating on that? The vibrating quartz crystal in a clock generator is second only to atomic decay as far as precision goes. What "instability"?
Originally posted by magma
reply to post by sweord
That legend is similar to the Australian Aborigines.
I am not disputing the legend. It may have happened.
The dispute I have is the so called waveforms on the rocks.
Which are clearly the mountains and the rivers.
The whole thing is a lame Stichin esque attempt and smells the same. Stinky..
Originally posted by RevelationGeneration
reply to post by sweord
AA is self refuting since evolution is false then there cannot be any possibility for aliens let alone ancient ones.
Originally posted by RevelationGeneration
reply to post by chrome413
Nope, the 'It's all speculative' excuse isn't going to work. Historical scholars and archaeologists have confirmed that they are just depictions of ordinary objects and not actually aliens/space craft in nearly all of the petroglyphs/stone tablets.
Yet according to the OP the natives were familiar with sine waves.
So the natives were shown advanced theories in electrical currents, but were not shown how to draw properly?
That thought process is curious