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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--- 1511 PhiPIandI 16-Mar-18 03:13
Re: Encoded in PI--- 282 PhiPIandI 16-Mar-18 03:40
Re: Encoded in PI--- 258 M. J. Thomas 16-Mar-18 06:51
Re: Encoded in PI---EGYPT & PI & Moon 271 PhiPIandI 16-Mar-18 11:37
Really? 220 Sirfiroth 16-Mar-18 13:51
Re: Encoded in PI---EGYPT & PI & Moon 223 M. J. Thomas 16-Mar-18 19:01
Re: Encoded in PI---EGYPT & PI & Moon 159 cladking 16-Mar-18 20:50
Re: Encoded in PI---EGYPT & PI & Moon 213 Manu 16-Mar-18 21:11
Re: Encoded in PI---EGYPT & PI & Moon 192 molder 16-Mar-18 22:46
Re: Encoded in PI---EGYPT & PI & Moon 185 molder 17-Mar-18 04:11
Re: Encoded in PI---EGYPT & PI & Moon 218 Manu 17-Mar-18 16:29
Re: Encoded in PI---EGYPT & PI & Moon 182 M. J. Thomas 17-Mar-18 16:51
Re: Encoded in PI---EGYPT & PI & Moon 169 Sirfiroth 17-Mar-18 18:29
Re: Encoded in PI---EGYPT & PI & Moon 187 M. J. Thomas 17-Mar-18 19:05
Re: Encoded in PI---EGYPT & PI & Moon 185 Sirfiroth 17-Mar-18 20:33
Re: Encoded in PI---EGYPT & PI & Moon 180 M. J. Thomas 17-Mar-18 21:27
Re: Encoded in PI---EGYPT & PI & Moon 224 M. J. Thomas 17-Mar-18 08:48
Re: Encoded in PI---EGYPT & PI & Moon 205 cladking 17-Mar-18 13:47
Re: Encoded in PI---EGYPT & PI & Moon 162 molder 18-Mar-18 12:47
Re: Encoded in PI---EGYPT & PI & Moon 164 Manu 18-Mar-18 16:40
Re: Encoded in PI---EGYPT & PI & Moon 171 M. J. Thomas 18-Mar-18 17:09
Re: Encoded in PI---EGYPT & PI & Moon 213 Manu 18-Mar-18 19:18
Re: Encoded in PI---EGYPT & PI & Moon 207 M. J. Thomas 19-Mar-18 10:49
Re: Encoded in PI---EGYPT & PI & Moon 200 DavidK 19-Mar-18 11:28
Re: Encoded in PI---EGYPT & PI & Moon 194 Manu 19-Mar-18 14:19
Re: Encoded in PI---EGYPT & PI & Moon 157 M. J. Thomas 19-Mar-18 17:49
Re: Encoded in PI---EGYPT & PI & Moon 177 Manu 19-Mar-18 18:14
Re: Encoded in PI---EGYPT & PI & Moon 164 M. J. Thomas 19-Mar-18 18:49
Re: Encoded in PI---EGYPT & PI & Moon 150 Manu 19-Mar-18 19:05
Re: Encoded in PI---EGYPT & PI & Moon 172 Audrey 20-Mar-18 01:06
Re: Encoded in PI---EGYPT & PI & Moon 172 molder 19-Mar-18 05:12
Harold @ "2-Pi-R" 193 Dr. Troglodyte 16-Mar-18 16:18
Re: Harold @ "2-Pi-R" 210 MDaines 16-Mar-18 17:19
Re: Encoded in PI--- 167 cladking 16-Mar-18 16:28
Re: Encoded in PI--- 197 Manu 16-Mar-18 16:45
Re: Encoded in PI--- 189 DavidK 18-Mar-18 01:19
Re: Encoded in PI--- 235 PhiPIandI 18-Mar-18 04:08
Re: Encoded in PI--- 190 M. J. Thomas 18-Mar-18 08:41
Re: Encoded in PI--- 168 DavidK 18-Mar-18 12:19
Re: Encoded in PI--- 159 M. J. Thomas 18-Mar-18 16:13
Re: Encoded in PI--- 172 DavidK 18-Mar-18 17:00
Re: Encoded in PI--- 322 rodz111 18-Mar-18 04:58
Re: Encoded in PI--- 187 M. J. Thomas 18-Mar-18 16:21
Re: Encoded in PI--- 140 DavidK 18-Mar-18 17:22
Re: Encoded in PI--- 345 rodz111 25-Mar-18 19:44
Re: Encoded in PI--- 182 molder 25-Mar-18 21:53
Re: Encoded in PI--- 195 rodz111 18-Mar-18 17:26
Re: Encoded in PI--- 188 M. J. Thomas 18-Mar-18 17:55
Re: Encoded in PI--- 190 DavidK 19-Mar-18 09:40
Re: Encoded in PI--- 168 Manu 19-Mar-18 19:21
Re: Encoded in PI--- 178 DavidK 19-Mar-18 20:12
Re: Encoded in PI--- 179 Manu 19-Mar-18 20:49
Re: Encoded in PI--- 163 M. J. Thomas 20-Mar-18 01:24
Re: Encoded in PI--- 207 Manu 20-Mar-18 03:10
Re: Encoded in PI--- 141 DavidK 19-Mar-18 20:58
Re: Encoded in PI--- 204 Manu 19-Mar-18 21:18
Re: Encoded in PI--- 199 DavidK 20-Mar-18 12:01
Re: Encoded in PI--- 192 Manu 20-Mar-18 20:50
Re: Encoded in PI--- 216 DavidK 22-Mar-18 14:04
Re: Encoded in PI--- 197 magisterchessmutt 28-Mar-18 01:13
Re: Encoded in PI--- 181 DavidK 28-Mar-18 06:55
Re: Encoded in PI--- 182 magisterchessmutt 28-Mar-18 13:38
Re: Encoded in PI--- 181 DavidK 29-Mar-18 11:02
Re: Encoded in PI--- 207 rodz111 30-Mar-18 19:40
Re: Encoded in PI--- 227 DavidK 20-Mar-18 23:26
Re: Encoded in PI--- 182 drew 31-Mar-18 00:30
Re: Encoded in PI No. 33 273 ajfriman 31-Mar-18 19:55
Re: Encoded in PI No. 33 231 PhiPIandI 04-Apr-18 23:29
Re: Encoded in PI No. 33 240 PhiPIandI 09-Apr-18 20:40
Re: Encoded in PI No. 33 185 rodz111 11-Apr-18 18:30
Re: Encoded in PI--- 180 rodz111 12-Apr-18 22:09
Re: Encoded in PI--- 198 rodz111 14-Apr-18 01:03
Re: the astronomical cubit codes the tropical year 226 rodz111 15-Apr-18 20:03
Re: Encoded in PI--- 261 rodz111 17-Apr-18 20:36


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