In retrospect

Article Abstract:

The book 'On the Revolutions of the Heavenly Spheres,' published in the 16th century by astronomer and canon Nicolaus Copernicus, is extremely technical. Indeed, most readers fail to progress beyond the beginning of the work, in which the new heliocentric cosmology is presented. Later in the book, Copernicus details the geometry to solve solar, planetary and lunar motion. Initially, the work attracted a steady stream of readers in relatively small numbers. It later fell into obscurity, but was revived in the UK in the 1970s through translations by Alistair Duncan and Edward Rosen.

Influence, On the Revolutions of the Heavenly Spheres (Book)

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Plotting the pyramids

Article Abstract:

Although there is no textual evidence that the Egyptians used a knowledge of astronomy to build the pyramids at Giza, there are plenty of physical signs that they knew where true north lay, and aligned the pyramids accordingly. Egyptologist Kate Spence presents a possible solution to the question of how the pyramids were so perfectly aligned with true north.

Research, Usage, Design and construction, Egypt, Pyramids, Pyramids (Structures), Egyptology, Pyramids (Giza, Egypt)

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A radical reorientation

Article Abstract:

An attempt has been made to prove that Nicolaus Copernicus' book 'De Revolutionibus Oribium Coelestium' is read and annotated amongst astronomers.

United States, Research and Development in the Physical, Engineering, and Life Sciences, Astronomy, Works, De Revolutionibus Oribium Coelestium (Book)

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