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originally posted by: Mike27
a reply to: Dalamax
Used to set out the Great Pyramid, its length measures 524mm, or 0.524m. metricviews.uk...
try again
originally posted by: Mike27
a reply to: Byrd
It's easy to make a simple solar observatory. Here's an example made from everyday garbage. I'm sure a creative ancient egyptian engineer could come up with something similar.
Now it is an exercise for The Mystical Spiral to find the mislabeled artifact(s).
A seconds pendulum is a pendulum whose period is precisely two seconds; one second for a swing in one direction and one second for the return swing, a frequency of 0.5 Hz.
In 1671, Jean Picard measured the length of a "seconds pendulum" and proposed a unit of measurement twice that length to be called the universal toise (French: Toise universelle). In 1675, Tito Livio Burattini suggested the term metre for a unit of length based on a pendulum length, but then it was discovered that the length of a seconds pendulum varies from place to place.
Less obvious is the reason for using the number 60, a number still widely used today with 60 seconds in a minute, 60 minutes in an hour, 60 minutes of arc in one degree of angle and six times that number of degrees, 360, in a circle.
The numerical system based on 60 originated with the Sumerian civilization, 4500 years ago. Sumer was located in what is now the southern part of Iraq. It is thought the number 60 is related to the origin of the number 12, which is the number of joints on 4 fingers of a hand, the thumb being free to count.
Five repeated hand counts delivers the number 60 which was used as the base for counting large numbers. Scholars of ancient history think that the finger-joint counting pioneered by the Sumerians explains why much of the ancient world based their numerical systems on 12 and multiples of 12, such as 24 and 60.
This system was handed down to the Babylonians, another ancient civilization that emerged just north of Sumer on the banks of the Euphrates river about 600 years after the Sumerians.
...
About 3500 years ago the Egyptian civilization became the dominant civilization and they embraced the duodecimal system (base 12).
originally posted by: Mike27
a reply to: The Mystical Spiral
honestly, i think this would a better fit in one of the following;
conspiracies in religions
origins and creationism
philosophy and metaphysics
people won't ask for as much supporting material.
philosophy and metaphysics might be the best.
originally posted by: The Mystical Spiral
www.instagram.com...
The akh and Ankh
a reply to: Byrd
originally posted by: Dalamax
I guess. There is something in Pythagoras theorem an angle and a known length of two sides giving an unknown length (the remaining side)
And the 1 second interval in the swing of a 1 meter pendulum at 30 degrees giving the 52cm length of the cubit?
Dunno, my understanding of mathematics is to shallow to make a concrete conclusion.
a reply to: Mike27
originally posted by: Dalamax
How, on Earth, did the pyramid builders define light through a vacuum to 8 decimal places?
IDK.
originally posted by: Dalamax
Ahhahaaha. I’m not that bad an insomniac thanks Byrd
a reply to: Byrd
To Mike27, cheers that’s interesting that the swing varies from place to place... there can’t be that many variables involved.
Appreciate the time to post
originally posted by: Dalamax
a reply to: Mike27
I guess. There is something in Pythagoras theorem an angle and a known length of two sides giving an unknown length (the remaining side)
And the 1 second interval in the swing of a 1 meter pendulum at 30 degrees giving the 52cm length of the cubit?
originally posted by: Byrd
originally posted by: Dalamax
How, on Earth, did the pyramid builders define light through a vacuum to 8 decimal places?
IDK.
I got into this argument on another board and had to work out how to write that number in hieroglyphs. Egyptians used something called "unit fractions" - they had special symbols for 1/2, 1/3, and 2/3 but for everything else they combined fractions -- 3/4ths was usually 1/2 + 1/4.
Actually, here's a really GREAT page on Egyptian math (don't worry. This isn't an eyeball-hurting page) and shows just how difficult it would be to write out that number.
originally posted by: Mike27
The table is from a different page, but where are the rest of the single digits for base12 (A and B), that table is base10 ...
originally posted by: 13Kiwi20qYes
a reply to: The Mystical Spiral
Ta am enjoying this. Like the crist cross can be folded into a cube is this a possibility also for the Ankh, but done differingly ?