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M. J. Thomas Wrote:
-------------------------------------------------------

> Okay, let's go back to square one and see where it
> takes us.
>
> How did the Ancient Egyptians go about measuring
> the circumference of the Moon?


There are likely several ways they could do it. Perhaps the most direct would be to measure a chord (line perpendicular to the diameter at sea surface) between two mountains. From this they could easily compute the diameter of the earth. Then to get the diameter of the moon they'd merely need to compare the computed size of the moon's umbra (by duration of eclipse) to the umbra of the earth in a lunar eclipse. Using the scattering effect in water of the reflected light from the sun from the moon they could then compute the speed of light.

A tool determines what job can be done as well as how to do it. Observational science is distinct from experimental science and learns things in distinct ways in a different order.

Man fears the pyramid, time fears man.



Edited 1 time(s). Last edit at 16-Mar-18 20:52 by cladking.

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Subject Views Written By Posted
Encoded in PI--- 1827 PhiPIandI 16-Mar-18 03:13
Re: Encoded in PI--- 379 PhiPIandI 16-Mar-18 03:40
Re: Encoded in PI--- 372 M. J. Thomas 16-Mar-18 06:51
Re: Encoded in PI---EGYPT & PI & Moon 381 PhiPIandI 16-Mar-18 11:37
Really? 315 Sirfiroth 16-Mar-18 13:51
Re: Encoded in PI---EGYPT & PI & Moon 351 M. J. Thomas 16-Mar-18 19:01
Re: Encoded in PI---EGYPT & PI & Moon 254 cladking 16-Mar-18 20:50
Re: Encoded in PI---EGYPT & PI & Moon 295 Manu 16-Mar-18 21:11
Re: Encoded in PI---EGYPT & PI & Moon 315 molder 16-Mar-18 22:46
Re: Encoded in PI---EGYPT & PI & Moon 274 molder 17-Mar-18 04:11
Re: Encoded in PI---EGYPT & PI & Moon 355 Manu 17-Mar-18 16:29
Re: Encoded in PI---EGYPT & PI & Moon 312 M. J. Thomas 17-Mar-18 16:51
Re: Encoded in PI---EGYPT & PI & Moon 269 Sirfiroth 17-Mar-18 18:29
Re: Encoded in PI---EGYPT & PI & Moon 296 M. J. Thomas 17-Mar-18 19:05
Re: Encoded in PI---EGYPT & PI & Moon 291 Sirfiroth 17-Mar-18 20:33
Re: Encoded in PI---EGYPT & PI & Moon 298 M. J. Thomas 17-Mar-18 21:27
Re: Encoded in PI---EGYPT & PI & Moon 334 M. J. Thomas 17-Mar-18 08:48
Re: Encoded in PI---EGYPT & PI & Moon 292 cladking 17-Mar-18 13:47
Re: Encoded in PI---EGYPT & PI & Moon 279 molder 18-Mar-18 12:47
Re: Encoded in PI---EGYPT & PI & Moon 260 Manu 18-Mar-18 16:40
Re: Encoded in PI---EGYPT & PI & Moon 269 M. J. Thomas 18-Mar-18 17:09
Re: Encoded in PI---EGYPT & PI & Moon 317 Manu 18-Mar-18 19:18
Re: Encoded in PI---EGYPT & PI & Moon 345 M. J. Thomas 19-Mar-18 10:49
Re: Encoded in PI---EGYPT & PI & Moon 316 DavidK 19-Mar-18 11:28
Re: Encoded in PI---EGYPT & PI & Moon 283 Manu 19-Mar-18 14:19
Re: Encoded in PI---EGYPT & PI & Moon 277 M. J. Thomas 19-Mar-18 17:49
Re: Encoded in PI---EGYPT & PI & Moon 319 Manu 19-Mar-18 18:14
Re: Encoded in PI---EGYPT & PI & Moon 270 M. J. Thomas 19-Mar-18 18:49
Re: Encoded in PI---EGYPT & PI & Moon 252 Manu 19-Mar-18 19:05
Re: Encoded in PI---EGYPT & PI & Moon 285 Audrey 20-Mar-18 01:06
Re: Encoded in PI---EGYPT & PI & Moon 257 molder 19-Mar-18 05:12
Harold @ "2-Pi-R" 282 Dr. Troglodyte 16-Mar-18 16:18
Re: Harold @ "2-Pi-R" 334 MDaines 16-Mar-18 17:19
Re: Encoded in PI--- 247 cladking 16-Mar-18 16:28
Re: Encoded in PI--- 297 Manu 16-Mar-18 16:45
Re: Encoded in PI--- 319 DavidK 18-Mar-18 01:19
Re: Encoded in PI--- 344 PhiPIandI 18-Mar-18 04:08
Re: Encoded in PI--- 329 M. J. Thomas 18-Mar-18 08:41
Re: Encoded in PI--- 258 DavidK 18-Mar-18 12:19
Re: Encoded in PI--- 246 M. J. Thomas 18-Mar-18 16:13
Re: Encoded in PI--- 281 DavidK 18-Mar-18 17:00
Re: Encoded in PI--- 538 rodz111 18-Mar-18 04:58
Re: Encoded in PI--- 294 M. J. Thomas 18-Mar-18 16:21
Re: Encoded in PI--- 284 DavidK 18-Mar-18 17:22
Re: Encoded in PI--- 524 rodz111 25-Mar-18 19:44
Re: Encoded in PI--- 310 molder 25-Mar-18 21:53
Re: Encoded in PI--- 300 rodz111 18-Mar-18 17:26
Re: Encoded in PI--- 302 M. J. Thomas 18-Mar-18 17:55
Re: Encoded in PI--- 295 DavidK 19-Mar-18 09:40
Re: Encoded in PI--- 310 Manu 19-Mar-18 19:21
Re: Encoded in PI--- 291 DavidK 19-Mar-18 20:12
Re: Encoded in PI--- 283 Manu 19-Mar-18 20:49
Re: Encoded in PI--- 270 M. J. Thomas 20-Mar-18 01:24
Re: Encoded in PI--- 302 Manu 20-Mar-18 03:10
Re: Encoded in PI--- 262 DavidK 19-Mar-18 20:58
Re: Encoded in PI--- 306 Manu 19-Mar-18 21:18
Re: Encoded in PI--- 307 DavidK 20-Mar-18 12:01
Re: Encoded in PI--- 293 Manu 20-Mar-18 20:50
Re: Encoded in PI--- 317 DavidK 22-Mar-18 14:04
Re: Encoded in PI--- 320 magisterchessmutt 28-Mar-18 01:13
Re: Encoded in PI--- 277 DavidK 28-Mar-18 06:55
Re: Encoded in PI--- 299 magisterchessmutt 28-Mar-18 13:38
Re: Encoded in PI--- 289 DavidK 29-Mar-18 11:02
Re: Encoded in PI--- 358 rodz111 30-Mar-18 19:40
Re: Encoded in PI--- 335 DavidK 20-Mar-18 23:26
Re: Encoded in PI--- 275 drew 31-Mar-18 00:30
Re: Encoded in PI No. 33 412 ajfriman 31-Mar-18 19:55
Re: Encoded in PI No. 33 354 PhiPIandI 04-Apr-18 23:29
Re: Encoded in PI No. 33 371 PhiPIandI 09-Apr-18 20:40
Re: Encoded in PI No. 33 256 rodz111 11-Apr-18 18:30
Re: Encoded in PI--- 299 rodz111 12-Apr-18 22:09
Re: Encoded in PI--- 297 rodz111 14-Apr-18 01:03
Re: the astronomical cubit codes the tropical year 437 rodz111 15-Apr-18 20:03
Re: Encoded in PI--- 392 rodz111 17-Apr-18 20:36


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