It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Originally posted by seataka
RE Stone Spheres
From The answer is right n front of you department
Costa Rica is a series of valleys and steep hills. there isnt a flat place in the country.. the small flat areas are where you often build a village...surrounded by steep valleys.
*IF* I were king in a mountain top village before there was gunpowder, I would use gravity to fight my enemies and stack up huge piles of these things at the tops of hills, as a deterrent to being invaded, or having my wife and her jewels stolen, and my heart cut out as an offering...
I would make them out of harder than normal stone so that I could use them again, like the space shuttle.
If a band of marauders were to come from the next valley... I would mow them down like bowling pins on the steep paths going up the village.
These tactics would work best when there was dense growth so that you could not see them coming, and time to get out of the way. The paths going up and down could have been gently engineered to guide these projectiles...
Originally posted by Bordon81
reply to post by hhcore
Perhaps the leaders of the civilization got interested in the solar or lunar cycles and guessed correctly that all of the planets and stars were spheres? Although we have lost the original orientation of the spheres could there still be any mathematical information encoded in the different diameters?
Originally posted by stirling
I should wonder if these stone sheres show any tool marks or any indications of being hand made....?
Here in nanaimo BC can. we have stone spheres that are encased in other stone....yes completely....
they are the result of a volcanic past and were naturally produced .
They apear encased in the stone cliffs along some roads and on some beaches...
Its is remakable how absolutely round they come, though not all absolute spheres, there are many that come very close....
Perhaps the puerto rican ones are similarly formed and were removed from some other site in which the same volcanic action as happened here created them....
they could then have been freed from the softer sandstone in which they apear and used as some form of worship or ceremonial objects?
can provide pics if you think i am full of BS...
In the mountainous Rio Icacos watershed in northeastern Puerto Rico, quartz diorite bedrock weathers spheroidally, producing a 0.2–2 m thick zone of partially weathered rock layers (2.5 cm thickness each) called rindlets, which form concentric layers around corestones. Spheroidal fracturing has been modeled to occur when a weathering reaction with a positive DV of reaction builds up elastic strain energy. The rates of spheroidal fracturing and saprolite formation are therefore controlled by the rate of the weathering reaction.
Originally posted by MR BOB
is it possible they were formed when the earth was? they seem too perfect like they were molten, then formed.
The vast majority the balls are made of a granodiorite that outcrops in the lower Terraba River. Quintanilla has located the raw material source and some boulders that may be unfinished balls. In her excavations, she also found flakes from the balls that suggested a method of manufacture. The stone from which they are made, when heated and then rapidly cooled (as with fire and cold water), exfoliates in thin, onion-like layers. Done repeatedly, this technique could have been used to shape boulders into their near-perfect sphericity. After this, they were polished to a high luster with ground stone tools.
Originally posted by kidflash2008
reply to post by seataka
While you do propose an interesting theory, why would they make such huge boulders and try to roll them up the hill? I could see using smaller ones as they can be much easier to aim and toss down the hill. It seems it would be easier to just use rocks and pelt the people below. It doesn't make sense to spend all that time carving near perfect spheres when the basic roundness would do the job also.
Also, wouldn't there be more evidence of a war going on than the hundreds of different sized boulders on the ground? And how many boulders have been found not near a hill at all?