Secret behind perfect alignment of Egypt's Pyramids decoded
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The experiment
For over a century, researchers have proposed different methods used by the ancient Egyptians to align the pyramids along these cardinal points with such accuracy.
Dash discovered a method that makes use of the fall equinox could have been used, the 'Live Science' reported.
In an experiment conducted on September 22, 2016 (the day of the autumn equinox), Dash placed a rod on a wooden platform and marked the location of the rod's shadow throughout the day.
"On the equinox, the surveyor will find that the tip of the shadow runs in a straight line and nearly perfectly east-west," Dash wrote.
Dash discovered a method that makes use of the fall equinox could have been used, the 'Live Science' reported.
In an experiment conducted on September 22, 2016 (the day of the autumn equinox), Dash placed a rod on a wooden platform and marked the location of the rod's shadow throughout the day.
"On the equinox, the surveyor will find that the tip of the shadow runs in a straight line and nearly perfectly east-west," Dash wrote.
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The degree of error
The degree of error is slightly counterclockwise, similar to the error found in the Great Pyramid, Khafre Pyramid and Red Pyramid, Dash found. The tilt of Earth on the fall equinox allows the shadow to run in this east-west direction.