4 ms·
https://en.wikipedia.org/wiki/Joseph_Davidovits https://en.wikipedia.org/wiki/Joseph_Davidovits It's amusing to look into. Checking is not so easy - the concre
by Luc 5y ago
https://en.wikipedia.org/wiki/Joseph_Davidovits https://en.wikipedia.org/wiki/Joseph_Davidovits
It's amusing to look into. Checking is not so easy - the concrete looks just like natural material. Finding an object embedded in the stone would prove it.
- ClumsyPilot 5y agoCouod we X-ray large sections of the pyramid?
- ncmncm 5y agoX rays do not penetrate bone. Limestone, of whatever provenance, is denser than bone. Examining a chip off a block under an electron microscope revealed differences from native stone.
- habi 5y agoX-rays do penetrate bone, just not very good. Otherwise one would not be able to make an X-ray of a human body.
- ncmncm 5y agoOr, failing to find expected objects embedded. By report, the Peruvian block faces lack the embedded marine animal shells found in natural limestone. (I have not examined them myself.)