[flagged]

Take two stones of similar roughness and rub them together for many, many hours. Eventually you'll have to flat surfaces that fit almost perfectly together. Beyond that, it's not hard to see how some skilled craftsmen with some knowledge of geometry (and lots of laborers and a royal mandate) could construct what the Inca did.

What they built is incredibly impressive, but you don't need to invoke magic woo to explain it.

	▲	WalterBright 12 hours ago \| parent \| next [-]
		It doesn't take many many hours. I saw a TV documentary on it, it can be done in a half hour with stones the size of a box of kleenex. The archaeologist would also add sand in between the two surfaces to speed it up.
	▲	begueradj 13 hours ago \| parent \| prev [-]
		How will you do that to stones of granite, quartz or stishovite ? Several authors and experts of all kind say what you said and what the article states are completely unfeasible.

▲

jamiek88 14 hours ago | parent | prev [-]

“ spiritual access to directed free-energy at the magnetic equator for dustifying/liquifying”

What? These words are English yet carry no meaning to me. Ancient people had clever engineers, just like us. Fuck all to do with magnetic spirituality whatever the fuck that is.

Every time there’s a thread about ancient engineering someone insists on this woo or different woo involving aliens.

Fucking tired of the arrogance and sheer dismissal of ancient people’s achievements.

Free energy at the magnetic equator. Fucks sake.

	▲	undershirt 10 hours ago \| parent \| next [-]
		sorry, I was tempted to draw a connection between the coincidence of dustified steel recorded during a magnetic disturbance and the locations of megalithic sites, but I’m not committed to their connection. I find it fun to hypothesize but I don’t want to dismiss their achievements.
	▲	bondarchuk 12 hours ago \| parent \| prev [-]
		don't feed the trolls