Mysteries :  The Official GrahamHancock.com forums
For serious discussion of the controversies, approaches and enigmas surrounding the origins and development of the human species and of human civilization. (NB: for more ‘out there’ posts we point you in the direction of the ‘Paranormal & Supernatural’ Message Board). 
Welcome! Log InRegister
You're correct.
A cutting disk of that size would need to be mandrel mounted.. (Mandrel = axle and hub).
4mm wide and 60cm diameter would tear itself apart under centrifugal force.
Even a flat sided disc cutter, without mandrel, would leave a quarter circle cut at the top and bottom of the overall cut.
The only other thing I can think of is a router, but that would have to have a prohibitively long length to diameter ratio.
Bend and break.
Can't get a saw in there because the ends of the cut are blind..
It looks like a saw cut but it can't be..
I don't know ??

It obviously caught the attention of the Russian guy.

Options: ReplyQuote


Subject Views Written By Posted
No other explanation ...high tech 1984 Racho 11-Nov-17 21:39
sorry to all...but at the 21 min mark and a few minutes after 444 Racho 11-Nov-17 22:08
another cave ...more oddities 124 Racho 16-Jan-20 22:12
Re: another cave ...similar thing in China 150 forumfan 18-Jan-20 14:12
Re: No other explanation ...high tech 494 D-Archer 12-Nov-17 08:57
Re: No other explanation ...high tech 479 Thanos5150 12-Nov-17 17:31
Not megalithic 590 Racho 14-Nov-17 06:40
Re: Not megalithic 377 Audrey 14-Nov-17 18:08
Re: Not megalithic 391 Jon Ellison 14-Nov-17 20:33
Re: Not megalithic 277 Audrey 14-Nov-17 21:56
Re: Not megalithic 304 Jon Ellison 14-Nov-17 22:23
Re: Not megalithic 318 Audrey 14-Nov-17 22:49
Re: Not megalithic 270 Jon Ellison 14-Nov-17 23:33
Re: Not megalithic 374 Audrey 15-Nov-17 01:49
Re: Not megalithic 481 Jon Ellison 15-Nov-17 07:35
Re: Not megalithic 298 Audrey 15-Nov-17 22:23
Re: Not megalithic 371 Racho 27-Nov-17 01:46
Re: Not megalithic 339 Corpuscles 27-Nov-17 02:28
Re: Not megalithic 379 Racho 27-Nov-17 02:52
Stone Spheres Are Natural Formations 256 Barbelo 27-Nov-17 05:37
I think the point is proven 297 Racho 27-Nov-17 06:04
Re: I think the point is proven ; 330 Barbelo 27-Nov-17 11:02
dismissive 238 Racho 27-Nov-17 16:48
Re: I think the point is proven 237 Origyptian 27-Nov-17 15:36
Let's learn about the science/realities associated with cutting stone 276 Racho 27-Nov-17 06:41
Re: Not megalithic 249 Origyptian 27-Nov-17 06:50
I Second That 345 Barbelo 27-Nov-17 20:52
wow...talk about being unhinged/triggered 286 Racho 27-Nov-17 23:26
Re: wow...talk about being unhinged/triggered 279 Corpuscles 27-Nov-17 23:46
Re: wow...talk about being unhinged/triggered 312 Barbelo 28-Nov-17 00:00
you start... 349 Racho 28-Nov-17 03:53
Re: you start... 348 Barbelo 28-Nov-17 05:15
Re: I Second That 389 Audrey 28-Nov-17 01:43
Wacko or Crackpot? 400 Barbelo 28-Nov-17 02:30
Re: Wacko or Crackpot? 330 Corpuscles 28-Nov-17 02:49
Re: Wacko or Crackpot? 350 Audrey 28-Nov-17 03:38
Re: Wacko or Crackpot? 420 Barbelo 28-Nov-17 05:23
Re: Not megalithic 269 Corpuscles 27-Nov-17 20:03
Re: Not megalithic 374 Audrey 28-Nov-17 00:11
Re: Not megalithic 423 Corpuscles 28-Nov-17 00:55
Re: Not megalithic 312 Audrey 28-Nov-17 02:02
Re: Not megalithic 466 Warwick 29-Nov-17 21:08
Re: Not megalithic 326 Origyptian 15-Nov-17 22:38
Re: Not megalithic 308 Jon Ellison 15-Nov-17 23:10
Re: Not megalithic 269 Jon Ellison 15-Nov-17 23:32
Re: Not megalithic 405 Origyptian 16-Nov-17 02:47
Re: Not megalithic 341 Origyptian 16-Nov-17 02:43
Re: Not megalithic 397 Origyptian 14-Nov-17 21:58
Re: Not megalithic 337 Jon Ellison 14-Nov-17 22:14
Re: Not megalithic 310 Origyptian 14-Nov-17 22:38
Re: Not megalithic 289 Thanos5150 14-Nov-17 22:55
Re: Not megalithic 378 Thanos5150 14-Nov-17 23:02
Re: Not megalithic 267 Audrey 14-Nov-17 23:46
Re: Not megalithic 349 Corpuscles 15-Nov-17 00:09
Re: Not megalithic 359 Audrey 15-Nov-17 01:15
Re: Not megalithic 390 Thanos5150 15-Nov-17 00:26
Re: Not megalithic 332 Corpuscles 14-Nov-17 22:47
Re: Not megalithic 347 Warwick 15-Nov-17 02:47
Re: Not megalithic 357 Audrey 15-Nov-17 04:06
Re: Not megalithic 284 Warwick 18-Nov-17 00:59
Re: Not megalithic 382 Racho 15-Nov-17 06:26
Re: Not megalithic 400 Warwick 18-Nov-17 01:01
Re: No other explanation ...high tech 434 Origyptian 12-Nov-17 14:37
Re: No other explanation ...high tech 489 Corpuscles 12-Nov-17 17:48
There Has Never Been Solid Ground 423 cladking 12-Nov-17 19:10
Re: There Has Never Been Solid Ground 368 Corpuscles 12-Nov-17 20:06
Re: There Has Never Been Solid Ground 376 cladking 12-Nov-17 20:55
Re: There Has Never Been Solid Ground!!!!!!!!!!! 356 Corpuscles 12-Nov-17 21:26
Re: There Has Never Been Solid Ground!!!!!!!!!!! 396 cladking 12-Nov-17 21:42
Facinating 371 Warwick 14-Nov-17 20:23
Re: Facinating 333 cladking 14-Nov-17 21:33
Re: Facinating 364 Warwick 15-Nov-17 02:51


Sorry, only registered users may post in this forum.