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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--- 1737 PhiPIandI 16-Mar-18 03:13
Re: Encoded in PI--- 348 PhiPIandI 16-Mar-18 03:40
Re: Encoded in PI--- 334 M. J. Thomas 16-Mar-18 06:51
Re: Encoded in PI---EGYPT & PI & Moon 342 PhiPIandI 16-Mar-18 11:37
Really? 287 Sirfiroth 16-Mar-18 13:51
Re: Encoded in PI---EGYPT & PI & Moon 314 M. J. Thomas 16-Mar-18 19:01
Re: Encoded in PI---EGYPT & PI & Moon 229 cladking 16-Mar-18 20:50
Re: Encoded in PI---EGYPT & PI & Moon 270 Manu 16-Mar-18 21:11
Re: Encoded in PI---EGYPT & PI & Moon 282 molder 16-Mar-18 22:46
Re: Encoded in PI---EGYPT & PI & Moon 239 molder 17-Mar-18 04:11
Re: Encoded in PI---EGYPT & PI & Moon 315 Manu 17-Mar-18 16:29
Re: Encoded in PI---EGYPT & PI & Moon 273 M. J. Thomas 17-Mar-18 16:51
Re: Encoded in PI---EGYPT & PI & Moon 243 Sirfiroth 17-Mar-18 18:29
Re: Encoded in PI---EGYPT & PI & Moon 253 M. J. Thomas 17-Mar-18 19:05
Re: Encoded in PI---EGYPT & PI & Moon 260 Sirfiroth 17-Mar-18 20:33
Re: Encoded in PI---EGYPT & PI & Moon 260 M. J. Thomas 17-Mar-18 21:27
Re: Encoded in PI---EGYPT & PI & Moon 299 M. J. Thomas 17-Mar-18 08:48
Re: Encoded in PI---EGYPT & PI & Moon 261 cladking 17-Mar-18 13:47
Re: Encoded in PI---EGYPT & PI & Moon 243 molder 18-Mar-18 12:47
Re: Encoded in PI---EGYPT & PI & Moon 228 Manu 18-Mar-18 16:40
Re: Encoded in PI---EGYPT & PI & Moon 239 M. J. Thomas 18-Mar-18 17:09
Re: Encoded in PI---EGYPT & PI & Moon 285 Manu 18-Mar-18 19:18
Re: Encoded in PI---EGYPT & PI & Moon 307 M. J. Thomas 19-Mar-18 10:49
Re: Encoded in PI---EGYPT & PI & Moon 290 DavidK 19-Mar-18 11:28
Re: Encoded in PI---EGYPT & PI & Moon 253 Manu 19-Mar-18 14:19
Re: Encoded in PI---EGYPT & PI & Moon 236 M. J. Thomas 19-Mar-18 17:49
Re: Encoded in PI---EGYPT & PI & Moon 278 Manu 19-Mar-18 18:14
Re: Encoded in PI---EGYPT & PI & Moon 232 M. J. Thomas 19-Mar-18 18:49
Re: Encoded in PI---EGYPT & PI & Moon 211 Manu 19-Mar-18 19:05
Re: Encoded in PI---EGYPT & PI & Moon 238 Audrey 20-Mar-18 01:06
Re: Encoded in PI---EGYPT & PI & Moon 229 molder 19-Mar-18 05:12
Harold @ "2-Pi-R" 250 Dr. Troglodyte 16-Mar-18 16:18
Re: Harold @ "2-Pi-R" 297 MDaines 16-Mar-18 17:19
Re: Encoded in PI--- 219 cladking 16-Mar-18 16:28
Re: Encoded in PI--- 263 Manu 16-Mar-18 16:45
Re: Encoded in PI--- 274 DavidK 18-Mar-18 01:19
Re: Encoded in PI--- 308 PhiPIandI 18-Mar-18 04:08
Re: Encoded in PI--- 294 M. J. Thomas 18-Mar-18 08:41
Re: Encoded in PI--- 230 DavidK 18-Mar-18 12:19
Re: Encoded in PI--- 214 M. J. Thomas 18-Mar-18 16:13
Re: Encoded in PI--- 249 DavidK 18-Mar-18 17:00
Re: Encoded in PI--- 469 rodz111 18-Mar-18 04:58
Re: Encoded in PI--- 254 M. J. Thomas 18-Mar-18 16:21
Re: Encoded in PI--- 249 DavidK 18-Mar-18 17:22
Re: Encoded in PI--- 460 rodz111 25-Mar-18 19:44
Re: Encoded in PI--- 261 molder 25-Mar-18 21:53
Re: Encoded in PI--- 266 rodz111 18-Mar-18 17:26
Re: Encoded in PI--- 270 M. J. Thomas 18-Mar-18 17:55
Re: Encoded in PI--- 261 DavidK 19-Mar-18 09:40
Re: Encoded in PI--- 265 Manu 19-Mar-18 19:21
Re: Encoded in PI--- 258 DavidK 19-Mar-18 20:12
Re: Encoded in PI--- 246 Manu 19-Mar-18 20:49
Re: Encoded in PI--- 229 M. J. Thomas 20-Mar-18 01:24
Re: Encoded in PI--- 268 Manu 20-Mar-18 03:10
Re: Encoded in PI--- 227 DavidK 19-Mar-18 20:58
Re: Encoded in PI--- 273 Manu 19-Mar-18 21:18
Re: Encoded in PI--- 270 DavidK 20-Mar-18 12:01
Re: Encoded in PI--- 256 Manu 20-Mar-18 20:50
Re: Encoded in PI--- 279 DavidK 22-Mar-18 14:04
Re: Encoded in PI--- 274 magisterchessmutt 28-Mar-18 01:13
Re: Encoded in PI--- 245 DavidK 28-Mar-18 06:55
Re: Encoded in PI--- 260 magisterchessmutt 28-Mar-18 13:38
Re: Encoded in PI--- 252 DavidK 29-Mar-18 11:02
Re: Encoded in PI--- 290 rodz111 30-Mar-18 19:40
Re: Encoded in PI--- 290 DavidK 20-Mar-18 23:26
Re: Encoded in PI--- 246 drew 31-Mar-18 00:30
Re: Encoded in PI No. 33 378 ajfriman 31-Mar-18 19:55
Re: Encoded in PI No. 33 302 PhiPIandI 04-Apr-18 23:29
Re: Encoded in PI No. 33 325 PhiPIandI 09-Apr-18 20:40
Re: Encoded in PI No. 33 225 rodz111 11-Apr-18 18:30
Re: Encoded in PI--- 260 rodz111 12-Apr-18 22:09
Re: Encoded in PI--- 255 rodz111 14-Apr-18 01:03
Re: the astronomical cubit codes the tropical year 359 rodz111 15-Apr-18 20:03
Re: Encoded in PI--- 345 rodz111 17-Apr-18 20:36


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