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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--- 1580 PhiPIandI 16-Mar-18 03:13
Re: Encoded in PI--- 309 PhiPIandI 16-Mar-18 03:40
Re: Encoded in PI--- 283 M. J. Thomas 16-Mar-18 06:51
Re: Encoded in PI---EGYPT & PI & Moon 297 PhiPIandI 16-Mar-18 11:37
Really? 246 Sirfiroth 16-Mar-18 13:51
Re: Encoded in PI---EGYPT & PI & Moon 261 M. J. Thomas 16-Mar-18 19:01
Re: Encoded in PI---EGYPT & PI & Moon 179 cladking 16-Mar-18 20:50
Re: Encoded in PI---EGYPT & PI & Moon 230 Manu 16-Mar-18 21:11
Re: Encoded in PI---EGYPT & PI & Moon 211 molder 16-Mar-18 22:46
Re: Encoded in PI---EGYPT & PI & Moon 208 molder 17-Mar-18 04:11
Re: Encoded in PI---EGYPT & PI & Moon 251 Manu 17-Mar-18 16:29
Re: Encoded in PI---EGYPT & PI & Moon 208 M. J. Thomas 17-Mar-18 16:51
Re: Encoded in PI---EGYPT & PI & Moon 189 Sirfiroth 17-Mar-18 18:29
Re: Encoded in PI---EGYPT & PI & Moon 214 M. J. Thomas 17-Mar-18 19:05
Re: Encoded in PI---EGYPT & PI & Moon 209 Sirfiroth 17-Mar-18 20:33
Re: Encoded in PI---EGYPT & PI & Moon 210 M. J. Thomas 17-Mar-18 21:27
Re: Encoded in PI---EGYPT & PI & Moon 247 M. J. Thomas 17-Mar-18 08:48
Re: Encoded in PI---EGYPT & PI & Moon 227 cladking 17-Mar-18 13:47
Re: Encoded in PI---EGYPT & PI & Moon 192 molder 18-Mar-18 12:47
Re: Encoded in PI---EGYPT & PI & Moon 178 Manu 18-Mar-18 16:40
Re: Encoded in PI---EGYPT & PI & Moon 191 M. J. Thomas 18-Mar-18 17:09
Re: Encoded in PI---EGYPT & PI & Moon 234 Manu 18-Mar-18 19:18
Re: Encoded in PI---EGYPT & PI & Moon 229 M. J. Thomas 19-Mar-18 10:49
Re: Encoded in PI---EGYPT & PI & Moon 225 DavidK 19-Mar-18 11:28
Re: Encoded in PI---EGYPT & PI & Moon 216 Manu 19-Mar-18 14:19
Re: Encoded in PI---EGYPT & PI & Moon 180 M. J. Thomas 19-Mar-18 17:49
Re: Encoded in PI---EGYPT & PI & Moon 210 Manu 19-Mar-18 18:14
Re: Encoded in PI---EGYPT & PI & Moon 186 M. J. Thomas 19-Mar-18 18:49
Re: Encoded in PI---EGYPT & PI & Moon 172 Manu 19-Mar-18 19:05
Re: Encoded in PI---EGYPT & PI & Moon 206 Audrey 20-Mar-18 01:06
Re: Encoded in PI---EGYPT & PI & Moon 193 molder 19-Mar-18 05:12
Harold @ "2-Pi-R" 214 Dr. Troglodyte 16-Mar-18 16:18
Re: Harold @ "2-Pi-R" 239 MDaines 16-Mar-18 17:19
Re: Encoded in PI--- 183 cladking 16-Mar-18 16:28
Re: Encoded in PI--- 218 Manu 16-Mar-18 16:45
Re: Encoded in PI--- 210 DavidK 18-Mar-18 01:19
Re: Encoded in PI--- 257 PhiPIandI 18-Mar-18 04:08
Re: Encoded in PI--- 226 M. J. Thomas 18-Mar-18 08:41
Re: Encoded in PI--- 187 DavidK 18-Mar-18 12:19
Re: Encoded in PI--- 178 M. J. Thomas 18-Mar-18 16:13
Re: Encoded in PI--- 193 DavidK 18-Mar-18 17:00
Re: Encoded in PI--- 365 rodz111 18-Mar-18 04:58
Re: Encoded in PI--- 215 M. J. Thomas 18-Mar-18 16:21
Re: Encoded in PI--- 165 DavidK 18-Mar-18 17:22
Re: Encoded in PI--- 371 rodz111 25-Mar-18 19:44
Re: Encoded in PI--- 202 molder 25-Mar-18 21:53
Re: Encoded in PI--- 217 rodz111 18-Mar-18 17:26
Re: Encoded in PI--- 216 M. J. Thomas 18-Mar-18 17:55
Re: Encoded in PI--- 210 DavidK 19-Mar-18 09:40
Re: Encoded in PI--- 193 Manu 19-Mar-18 19:21
Re: Encoded in PI--- 206 DavidK 19-Mar-18 20:12
Re: Encoded in PI--- 200 Manu 19-Mar-18 20:49
Re: Encoded in PI--- 182 M. J. Thomas 20-Mar-18 01:24
Re: Encoded in PI--- 225 Manu 20-Mar-18 03:10
Re: Encoded in PI--- 158 DavidK 19-Mar-18 20:58
Re: Encoded in PI--- 225 Manu 19-Mar-18 21:18
Re: Encoded in PI--- 218 DavidK 20-Mar-18 12:01
Re: Encoded in PI--- 211 Manu 20-Mar-18 20:50
Re: Encoded in PI--- 240 DavidK 22-Mar-18 14:04
Re: Encoded in PI--- 225 magisterchessmutt 28-Mar-18 01:13
Re: Encoded in PI--- 211 DavidK 28-Mar-18 06:55
Re: Encoded in PI--- 208 magisterchessmutt 28-Mar-18 13:38
Re: Encoded in PI--- 201 DavidK 29-Mar-18 11:02
Re: Encoded in PI--- 233 rodz111 30-Mar-18 19:40
Re: Encoded in PI--- 255 DavidK 20-Mar-18 23:26
Re: Encoded in PI--- 203 drew 31-Mar-18 00:30
Re: Encoded in PI No. 33 316 ajfriman 31-Mar-18 19:55
Re: Encoded in PI No. 33 248 PhiPIandI 04-Apr-18 23:29
Re: Encoded in PI No. 33 262 PhiPIandI 09-Apr-18 20:40
Re: Encoded in PI No. 33 200 rodz111 11-Apr-18 18:30
Re: Encoded in PI--- 205 rodz111 12-Apr-18 22:09
Re: Encoded in PI--- 211 rodz111 14-Apr-18 01:03
Re: the astronomical cubit codes the tropical year 252 rodz111 15-Apr-18 20:03
Re: Encoded in PI--- 288 rodz111 17-Apr-18 20:36


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