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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--- 1446 PhiPIandI 16-Mar-18 03:13
Re: Encoded in PI--- 245 PhiPIandI 16-Mar-18 03:40
Re: Encoded in PI--- 235 M. J. Thomas 16-Mar-18 06:51
Re: Encoded in PI---EGYPT & PI & Moon 231 PhiPIandI 16-Mar-18 11:37
Really? 195 Sirfiroth 16-Mar-18 13:51
Re: Encoded in PI---EGYPT & PI & Moon 198 M. J. Thomas 16-Mar-18 19:01
Re: Encoded in PI---EGYPT & PI & Moon 142 cladking 16-Mar-18 20:50
Re: Encoded in PI---EGYPT & PI & Moon 191 Manu 16-Mar-18 21:11
Re: Encoded in PI---EGYPT & PI & Moon 171 molder 16-Mar-18 22:46
Re: Encoded in PI---EGYPT & PI & Moon 165 molder 17-Mar-18 04:11
Re: Encoded in PI---EGYPT & PI & Moon 189 Manu 17-Mar-18 16:29
Re: Encoded in PI---EGYPT & PI & Moon 153 M. J. Thomas 17-Mar-18 16:51
Re: Encoded in PI---EGYPT & PI & Moon 152 Sirfiroth 17-Mar-18 18:29
Re: Encoded in PI---EGYPT & PI & Moon 160 M. J. Thomas 17-Mar-18 19:05
Re: Encoded in PI---EGYPT & PI & Moon 161 Sirfiroth 17-Mar-18 20:33
Re: Encoded in PI---EGYPT & PI & Moon 161 M. J. Thomas 17-Mar-18 21:27
Re: Encoded in PI---EGYPT & PI & Moon 201 M. J. Thomas 17-Mar-18 08:48
Re: Encoded in PI---EGYPT & PI & Moon 182 cladking 17-Mar-18 13:47
Re: Encoded in PI---EGYPT & PI & Moon 140 molder 18-Mar-18 12:47
Re: Encoded in PI---EGYPT & PI & Moon 145 Manu 18-Mar-18 16:40
Re: Encoded in PI---EGYPT & PI & Moon 147 M. J. Thomas 18-Mar-18 17:09
Re: Encoded in PI---EGYPT & PI & Moon 187 Manu 18-Mar-18 19:18
Re: Encoded in PI---EGYPT & PI & Moon 187 M. J. Thomas 19-Mar-18 10:49
Re: Encoded in PI---EGYPT & PI & Moon 175 DavidK 19-Mar-18 11:28
Re: Encoded in PI---EGYPT & PI & Moon 171 Manu 19-Mar-18 14:19
Re: Encoded in PI---EGYPT & PI & Moon 133 M. J. Thomas 19-Mar-18 17:49
Re: Encoded in PI---EGYPT & PI & Moon 157 Manu 19-Mar-18 18:14
Re: Encoded in PI---EGYPT & PI & Moon 136 M. J. Thomas 19-Mar-18 18:49
Re: Encoded in PI---EGYPT & PI & Moon 130 Manu 19-Mar-18 19:05
Re: Encoded in PI---EGYPT & PI & Moon 144 Audrey 20-Mar-18 01:06
Re: Encoded in PI---EGYPT & PI & Moon 150 molder 19-Mar-18 05:12
Harold @ "2-Pi-R" 172 Dr. Troglodyte 16-Mar-18 16:18
Re: Harold @ "2-Pi-R" 178 MDaines 16-Mar-18 17:19
Re: Encoded in PI--- 152 cladking 16-Mar-18 16:28
Re: Encoded in PI--- 175 Manu 16-Mar-18 16:45
Re: Encoded in PI--- 168 DavidK 18-Mar-18 01:19
Re: Encoded in PI--- 190 PhiPIandI 18-Mar-18 04:08
Re: Encoded in PI--- 166 M. J. Thomas 18-Mar-18 08:41
Re: Encoded in PI--- 146 DavidK 18-Mar-18 12:19
Re: Encoded in PI--- 134 M. J. Thomas 18-Mar-18 16:13
Re: Encoded in PI--- 142 DavidK 18-Mar-18 17:00
Re: Encoded in PI--- 275 rodz111 18-Mar-18 04:58
Re: Encoded in PI--- 161 M. J. Thomas 18-Mar-18 16:21
Re: Encoded in PI--- 125 DavidK 18-Mar-18 17:22
Re: Encoded in PI--- 317 rodz111 25-Mar-18 19:44
Re: Encoded in PI--- 156 molder 25-Mar-18 21:53
Re: Encoded in PI--- 175 rodz111 18-Mar-18 17:26
Re: Encoded in PI--- 164 M. J. Thomas 18-Mar-18 17:55
Re: Encoded in PI--- 166 DavidK 19-Mar-18 09:40
Re: Encoded in PI--- 141 Manu 19-Mar-18 19:21
Re: Encoded in PI--- 151 DavidK 19-Mar-18 20:12
Re: Encoded in PI--- 155 Manu 19-Mar-18 20:49
Re: Encoded in PI--- 141 M. J. Thomas 20-Mar-18 01:24
Re: Encoded in PI--- 184 Manu 20-Mar-18 03:10
Re: Encoded in PI--- 121 DavidK 19-Mar-18 20:58
Re: Encoded in PI--- 181 Manu 19-Mar-18 21:18
Re: Encoded in PI--- 170 DavidK 20-Mar-18 12:01
Re: Encoded in PI--- 171 Manu 20-Mar-18 20:50
Re: Encoded in PI--- 191 DavidK 22-Mar-18 14:04
Re: Encoded in PI--- 160 magisterchessmutt 28-Mar-18 01:13
Re: Encoded in PI--- 155 DavidK 28-Mar-18 06:55
Re: Encoded in PI--- 157 magisterchessmutt 28-Mar-18 13:38
Re: Encoded in PI--- 160 DavidK 29-Mar-18 11:02
Re: Encoded in PI--- 179 rodz111 30-Mar-18 19:40
Re: Encoded in PI--- 205 DavidK 20-Mar-18 23:26
Re: Encoded in PI--- 161 drew 31-Mar-18 00:30
Re: Encoded in PI No. 33 222 ajfriman 31-Mar-18 19:55
Re: Encoded in PI No. 33 184 PhiPIandI 04-Apr-18 23:29
Re: Encoded in PI No. 33 207 PhiPIandI 09-Apr-18 20:40
Re: Encoded in PI No. 33 164 rodz111 11-Apr-18 18:30
Re: Encoded in PI--- 154 rodz111 12-Apr-18 22:09
Re: Encoded in PI--- 172 rodz111 14-Apr-18 01:03
Re: the astronomical cubit codes the tropical year 192 rodz111 15-Apr-18 20:03
Re: Encoded in PI--- 231 rodz111 17-Apr-18 20:36


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