I would like to discuss such artifacts as the Antikythera mechanism, the Baigong pipes, and the Baghdad batteries. Also, has anyone heard of the Bloop or Slow down sound recorded in the ocean? If not here is some more info on them:


http://www.pmel.noaa.gov/vents/acoustics/sounds/bloop.html

http://en.wikipedia.org/wiki/Slow_Down_(unidentified_sound)

The question about OOPARTS is how can we prove that they are real? Here is one that is quite interesting (http://www.s8int.com/giants1.html). If there were any ancient advanced societies, shouldn't there be more artifacts like this found?

As for the sound detected in the Pacific, it's believed by NOAA to have been caused by an animal, albeit an animal that would have to be several times larger than a Blue Whale.

As for the very great majority of other OOParts, the grand majority are simply hoaxes. For example, there's one artifact attributed to OOPart which was found in the USA. It's called the Kensington Runestone, and for a while was considered to be evidence of Norse exploration of the interior continent.

Modern analysis has proved otherwise, however. The grammar and vocabulary used in the stone is modern, and thus incompatible with the tongues of 14th century Norsemen.

Others do have some merit to them, however. Some small objects have been found washed up in the New World, even though they are pre-Columbine in age, and foreign in origin.

For example, this little bust:

http://upload.wikimedia.org/wikipedia/en/c/c5/Tecaxic_calixtlahuaca_head.jpg

Found in Mexico in an undisturbed location, it is not reminiscent of Mesoamerican forms of sculpture. For any other Totseans who know their history and anthropology well, you'll be able to tell right off the bat that the bust is Greco-Roman in origin. Objects such as this could have simply drifted ashore.

Be forewarned; most OOPart has no tangible evidence, has been found under skeptical circumstances, and is at best, sketchy.