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Yes it can prove the concept of a bow drill. Which we already knew about.
It doesn't prove that copper tube granite drilling is a practical and workable solution. He was drilling limestone.

Do you know of any recorded instance of copper tube granite drilling being carried out? I can't find any.

I'll make my own statements, but thanks anyway.


[en.wikipedia.org]



Post Edited (04-Apr-15 19:48)

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Subject Views Written By Posted
Early Dynastic Technology. 541 Jon Ellison 02-Apr-15 09:19
Re: Early Dynastic Technology. 310 Scott Creighton 02-Apr-15 09:38
Re: Early Dynastic Technology. 558 Jon Ellison 02-Apr-15 09:49
Re: Early Dynastic Technology. 271 charly 02-Apr-15 12:14
Re: Early Dynastic Technology. 272 Origyptian 02-Apr-15 15:35
Re: Early Dynastic Technology. 165 Jon Ellison 02-Apr-15 15:41
Re: Early Dynastic Technology. 296 Skatha 04-Apr-15 15:36
Re: Early Dynastic Technology. 255 Jon Ellison 04-Apr-15 15:44
Re: Early Dynastic Technology. 300 Archae Solenhofen 04-Apr-15 16:30
Re: Early Dynastic Technology. 275 Jon Ellison 04-Apr-15 16:48
Re: Early Dynastic Technology. 317 Archae Solenhofen 04-Apr-15 17:11
Re: Early Dynastic Technology. 273 Jon Ellison 04-Apr-15 17:18
Re: Early Dynastic Technology. 210 Archae Solenhofen 04-Apr-15 17:40
Re: Early Dynastic Technology. 267 Jon Ellison 04-Apr-15 18:03
Re: Early Dynastic Technology. 230 Archae Solenhofen 04-Apr-15 18:37
Re: Early Dynastic Technology. 256 Jon Ellison 04-Apr-15 19:12
Re: Early Dynastic Technology. 306 Jon Ellison 02-Apr-15 15:58
Re: Early Dynastic Technology. 264 OCaptain 04-Apr-15 19:30
Re: Early Dynastic Technology. 218 Archae Solenhofen 04-Apr-15 21:14
Re: Early Dynastic Technology. 282 cladking 02-Apr-15 15:39
Re: Early Dynastic Technology. 266 Jon Ellison 02-Apr-15 15:45
Re: Early Dynastic Technology. 293 cladking 02-Apr-15 16:12
Re: Early Dynastic Technology. 263 Thanos5150 04-Apr-15 18:10
Re: Early Dynastic Technology. 305 Jon Ellison 04-Apr-15 18:13
Re: Early Dynastic Technology. 298 Thanos5150 04-Apr-15 19:11
Re: Early Dynastic Technology. 307 cladking 04-Apr-15 19:11
Re: Early Dynastic Technology. 281 Thanos5150 04-Apr-15 20:58
Re: Early Dynastic Technology. 282 cladking 02-Apr-15 16:10
Re: Early Dynastic Technology. 284 Jon Ellison 02-Apr-15 16:24
Re: Early Dynastic Technology. 345 Origyptian 02-Apr-15 21:41
Re: Early Dynastic Technology. 260 Jon Ellison 02-Apr-15 21:54
Re: Early Dynastic Technology. 288 Origyptian 02-Apr-15 22:24
Re: Early Dynastic Technology. 293 Jon Ellison 02-Apr-15 22:54
Re: Early Dynastic Technology. 290 DScribr 04-Apr-15 19:49
Re: Early Dynastic Technology. 305 Jon Ellison 04-Apr-15 19:58
Re: Early Dynastic Technology. 249 DScribr 05-Apr-15 00:32
Re: Early Dynastic Technology. 291 Jon Ellison 05-Apr-15 00:40
Re: Early Dynastic Technology can stand up to the speculators. 292 DScribr 05-Apr-15 16:55
Re: Early Dynastic Technology can stand up to the speculators. 298 Jon Ellison 05-Apr-15 17:18
Re: Early Dynastic Technology can stand up to the speculators. 278 DScribr 05-Apr-15 19:04
Re: Early Dynastic Technology can stand up to the speculators. 306 Jon Ellison 05-Apr-15 19:42
Re: Early Dynastic Technology can stand up to the speculators. 265 DScribr 06-Apr-15 06:07
Re: Early Dynastic Technology can stand up to the speculators. 322 MJT 05-Apr-15 20:04
Re: Early Dynastic Technology can stand up to the speculators. 289 Jon Ellison 05-Apr-15 21:05
Re: Early Dynastic Technology can stand up to the speculators. 318 DScribr 06-Apr-15 06:19
Re: Early Dynastic Technology can stand up to the speculators. 355 Jon Ellison 06-Apr-15 09:27
Re: Early Dynastic Technology can stand up to the speculators. 250 DScribr 06-Apr-15 06:02
Re: Early Dynastic Technology can stand up to the speculators. 292 Martin Stower 08-Apr-15 20:30
Re: Early Dynastic Technology can stand up to the speculators. 252 MJT 08-Apr-15 21:32
Re: Early Dynastic Technology can stand up to the speculators. 285 Martin Stower 08-Apr-15 23:40
Re: Early Dynastic Technology. 238 Origyptian 05-Apr-15 06:06
Early Dynastic Technology Built Pyramids 305 DScribr 05-Apr-15 17:03
Re: Early Dynastic Technology Built Pyramids 284 Origyptian 06-Apr-15 04:57
Re: Early Dynastic Technology Built Pyramids....'growing evidence' 288 DScribr 06-Apr-15 06:32
Re: Early Dynastic Technology Built Pyramids....'growing evidence' 261 Origyptian 06-Apr-15 14:29
Re: Early Dynastic Technology Built Pyramids....'growing evidence' 334 Jon Ellison 06-Apr-15 14:38
Re: Early Dynastic Technology Built Pyramids....'growing evidence' 308 Origyptian 06-Apr-15 16:43
Re: Early Dynastic Technology Built Pyramids....'growing evidence' 305 Jon Ellison 06-Apr-15 16:51
Re: Early Dynastic Technology Built Pyramids....'growing evidence' 255 DScribr 06-Apr-15 14:55
Denial of the evidence... 271 Ratcho 06-Apr-15 15:31
Re: Denial of the evidence... 301 Jon Ellison 06-Apr-15 15:47
Sinister... 333 Ratcho 06-Apr-15 18:11
Re: Sinister... 274 Origyptian 06-Apr-15 18:20
Re: Sinister... 313 MJT 06-Apr-15 18:55
Re: Sinister... 268 Ratcho 06-Apr-15 19:49
Re: Sinister... 229 MJT 06-Apr-15 23:01
Re: Sinister... 318 Ratcho 07-Apr-15 00:13
Re: Sinister... 245 Jon Ellison 07-Apr-15 08:25
Re: Sinister... 278 MJT 07-Apr-15 11:26
Re: Sinister... 262 Jon Ellison 07-Apr-15 11:48
The lack of perfection... 305 Ratcho 08-Apr-15 07:28
Re: The lack of perfection... 286 Jon Ellison 08-Apr-15 10:26
Re: The lack of perfection... 303 Jon Ellison 08-Apr-15 12:13
Re: The lack of perfection... 274 MJT 08-Apr-15 14:19
Re: The lack of perfection... 213 Jon Ellison 08-Apr-15 14:24
Re: The lack of perfection... 243 Corpuscles 08-Apr-15 16:46
Re: The lack of perfection... 235 Jon Ellison 08-Apr-15 17:00
Not contributing to discussion 349 randompHactor 08-Apr-15 17:44
Re: Not contributing to discussion 216 Jon Ellison 08-Apr-15 17:45
Re: Not contributing to discussion 270 MJT 08-Apr-15 18:52
Re: Not contributing to discussion 281 Jon Ellison 08-Apr-15 19:13
Re: Not contributing to discussion 251 MJT 08-Apr-15 19:53
Re: Not contributing to discussion 270 Jon Ellison 08-Apr-15 20:07
Re: Not contributing to discussion 280 MJT 08-Apr-15 20:50
Re: Not contributing to discussion 269 Jon Ellison 08-Apr-15 20:52
Re: Not contributing to discussion 312 MJT 08-Apr-15 21:05
Re: Not contributing to discussion 287 Jon Ellison 08-Apr-15 21:12
Re: Not contributing to discussion 318 MJT 08-Apr-15 21:47
Re: Not contributing to discussion 258 Jon Ellison 08-Apr-15 23:25
Re: Not contributing to discussion 280 Jon Ellison 09-Apr-15 02:05
Re: The lack of perfection... 319 Corpuscles 08-Apr-15 17:46
Re: The lack of perfection... 313 Jon Ellison 08-Apr-15 18:09
Re: Sinister... 294 Frank D 07-Apr-15 10:43
Re: Sinister... 331 Ratcho 07-Apr-15 15:22
Re: Sinister... 234 Archae Solenhofen 07-Apr-15 16:31
Re: Sinister... 241 Origyptian 07-Apr-15 16:37
Re: Sinister... 362 Archae Solenhofen 07-Apr-15 17:14
Re: Sinister... 287 Jon Ellison 07-Apr-15 17:56
Re: Sinister... 287 Archae Solenhofen 07-Apr-15 18:21
Re: Sinister... 326 Jon Ellison 07-Apr-15 18:36
Re: Sinister... 332 Archae Solenhofen 07-Apr-15 19:01
Re: Sinister... 271 Jon Ellison 07-Apr-15 19:10
Re: Sinister... 288 Archae Solenhofen 07-Apr-15 19:42
Re: Sinister... 282 Jon Ellison 07-Apr-15 19:54
Re: Sinister... 311 Archae Solenhofen 07-Apr-15 20:22
Re: Sinister... 331 Jon Ellison 07-Apr-15 20:32
Re: Sinister... 261 Archae Solenhofen 07-Apr-15 20:46
Re: Sinister... 237 Jon Ellison 07-Apr-15 21:01
Re: Sinister... 329 Archae Solenhofen 07-Apr-15 21:31
Re: Sinister... 283 Jon Ellison 07-Apr-15 22:17
Re: Sinister... 211 Archae Solenhofen 07-Apr-15 22:57
Re: Sinister... 256 Jon Ellison 07-Apr-15 23:03
Re: Sinister... 237 Archae Solenhofen 08-Apr-15 00:43
Re: Sinister... 253 Jon Ellison 07-Apr-15 20:12
Re: Sinister... 241 Corpuscles 07-Apr-15 20:41
Re: Sinister... 255 Jon Ellison 07-Apr-15 18:26
Re: Sinister... 264 Archae Solenhofen 07-Apr-15 18:50
Re: Sinister... 279 Origyptian 07-Apr-15 23:23
Re: Sinister... 252 Jon Ellison 07-Apr-15 23:27
Re: Sinister... 230 Origyptian 07-Apr-15 23:38
Re: Sinister... 230 Jon Ellison 07-Apr-15 23:48
Re: Sinister... 190 MJT 08-Apr-15 11:43
Re: Early Dynastic Technology. 277 MJT 04-Apr-15 20:43
Firemaking and associate technology 249 Skatha 02-Apr-15 16:22
Re: Firemaking and associate technology 312 Jon Ellison 02-Apr-15 16:27
Re: Early Dynastic Technology. 239 OCaptain 04-Apr-15 18:52
Re: Early Dynastic Technology. 219 Jon Ellison 04-Apr-15 19:08
Re: Early Dynastic Technology. 260 Jon Ellison 04-Apr-15 19:36
Re: Early Dynastic Technology. 275 Origyptian 05-Apr-15 05:57
Re: Early Dynastic Technology. 238 drew 05-Apr-15 08:31
What to make of this...? 247 Ratcho 06-Apr-15 18:42
Re: again priceless!!! 298 charly 06-Apr-15 21:29
Debunking 256 Ratcho 07-Apr-15 15:15
Re: Debunking 248 charly 07-Apr-15 19:00
Re: priceless re-evaluation 280 DScribr 07-Apr-15 15:59
Re: priceless re-evaluation 302 charly 07-Apr-15 19:05
Re: Early Dynastic Technology. 246 Jon Ellison 07-Apr-15 18:52
Re: Early Dynastic Technology. 301 Archae Solenhofen 07-Apr-15 19:11
Re: Early Dynastic Technology.does anyone know of any limestone core drilling? 270 Jon Ellison 08-Apr-15 00:32
Re: Early Dynastic Technology.does anyone know of any limestone core drilling? 300 Origyptian 08-Apr-15 00:48
Re: Early Dynastic Technology.does anyone know of any limestone core drilling? 328 Jon Ellison 08-Apr-15 07:30
Re: Early Dynastic Technology. 235 Jon Ellison 09-Apr-15 12:44


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