How did the ancient Egyptians drill holes in granite? Bronze and sand would have worked

[bjornlangoren]

It took me 30 seconds to conclude that they were drilling with the help of abrasives. They knew well that even a water drop can shape stone given enough time. It boggles the mind that this was considered a great mystery.

[citguero]

Probably an even more abrasive kind of sand, who knows like smashed quartz or smashed diamonds

[cag]

I suppose those guys are the aliens everybody wants to believe in...

[MoneyRedRum]

why didn’t they do the experiment on granite?

[lenahandsen]

Aha this was how they did Kailasa Temple Carved Out of One Rock from the Top Down!

[DonRobinson-yc]

Christopher Dunn has proven the core samples spiral, like a drill rotation in one direction moving into the granite?

[Nguyen]

If the drilling process was helped by sand, why are the lines so far apart? Shouldn't the drill marks be finer and closer to each other?

[javiervilla]

I don’t believe for a second it was done this way I still think there was advance technology not like ours we have today

[Joes]

Did you just make a bunch of shit up? I watched a guy examine the marks on a plug and he said "the laser technology we have can read how fast the drill bit was going and we don't have drill bits that can drill that fast into granite".
So that plug might have been made like that although i doubt it, but that does not mean all the holes were cut like that. They found that our best diamond tip drill bits were 14x less efficient than the ancient drills.

[Aris]

this is limestone!!
if this was granite it would not work!
or it would take 10 days to cut 1cm deep

[arjakezhaz]

Nope theres no back and forth on drill marks

[biggieb]

Still doesn't prove God exists.👍🤨