:{"post_id":78709569,"author":"pagandance","permlink":"dumb-russians-trying-to-drill-a-hole-in-granite-with-copper","category":"egypt","title":"Dumb Russians Trying To Drill A Hole in Granite With Copper","body":"And they succeeded. \n\nhttps://www.youtube.com/watch?v=QU78TtJwTgQ\n\nWith very simple things like wooden blocks and stems and using Corundum as abrasive wich is available in Egypt.\n\nExplanation: Granite is 7 on the Mohs Scale of hardness, while Corundum is 9.\n\nhttps://simple.wikipedia.org/wiki/Mohs_scale_of_mineral_hardness\n\nhttps://www.metmuseum.org/blogs/now-at-the-met/2015/ancient-egyptian-technology\n\nThere goes the Ancient Alien Technology Theory.","json_metadata":"$28","created":"2019-01-21T12:44:39","updated":"2019-01-21T13:15:15","depth":0,"children":0,"net_rshares":3354396163,"is_paidout":true,"payout_at":"2019-01-28T12:44:39","payout":0,"pending_payout_value":"0.000 HBD","author_payout_value":"0.000 HBD","curator_payout_value":"0.000 HBD","promoted":"0.000 HBD","replies":"$2c","author_reputation":55.68,"stats":"$2d","url":"/egypt/@pagandance/dumb-russians-trying-to-drill-a-hole-in-granite-with-copper","beneficiaries":"$2e","max_accepted_payout":"1000000.000 HBD","percent_hbd":10000,"active_votes":"$2f","blacklists":"$3b","num":"$undefined"} 45:T4b5,

And they succeeded.

With very simple things like wooden blocks and stems and using Corundum as abrasive wich is available in Egypt.

Explanation: Granite is 7 on the Mohs Scale of hardness, while Corundum is 9.