These brackets are interesting in many ways, at least in material, since in this regard, you can ask many questions about the possibilities of civilizations of the past, but all in order.
From time to time, in some of my articles about ancient buildings of various purposes, I mark the traces of these huge ancient screeds, or I just leave a picture.
What do we know about this technology? There are many traces of the presence of staples in ancient structures, right between the blocks, although most often this is only a trace, and nothing remained of the staple itself, due to the enormous time and complete destruction.
It is worth saying that these brackets were often quite large, sometimes they held the block up to almost half of its size, which is certainly impressive.
I do not know how effective this technology was and whether it really fastened the blocks, but it was used practically all over the world. Although I have a version that they did this not at all for fastening the blocks.
But now it's worth talking about the material and the braces themselves, since many interesting questions arise that are difficult to answer.
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After studying some of these brackets, it turned out that they are made of a rather strange alloy - this is 95% copper, as well as arsenic, nickel, silicon and iron.
Such an alloy was found on staples in Bolivia, in the structures of Tiwanaku and Puma Punku. But there are no nickel deposits anywhere, which raises questions that are difficult to find answers to.
And in Puma-Punku, for example, they found staples with platinum, the melting point of which is 1700-1800 ° C, the question is, how was everyone doing this then?
The most obvious version of creating such a method is casting. But how such a material as platinum was smelted, for this, according to experts, a portable smelting furnace was needed, which is at least not typical for the period of 2-5 thousand years BC.
Moreover, as I said above, and I wrote in previous articles, this technology of metal staples was actively used all over the world, but how did ancient civilizations learn this? How were various materials melted? And how was the technology transferred around the world in the end?
In short, all this I lead to the fact that, in my opinion, almost all of the ancient civilizations were taught by a highly developed, possibly extraterrestrial civilization and the technology of metal braces is no exception to this version.
In general, this technology, like many others, remains a mystery to this day, it remains only to build your own versions.