i did not know that. you should update the wiki page which tells me the kola superdeep borehole is 12,262m (>12km) deep. though it makes no mention of any man trying to decend down the drill hole. and tell the miners working the Mponeng gold mine in South Africa, one of many there that go to...
im pretty sure that cant be true, the pole moves more than that amount of the decades that it took to construct the pyramids. im sure the experts use how far from north it is aligned to estimate when it was built, judging true (celestial) north is pretty easy.
hmmm, average temperature of the...