Daily Archives: February 28, 2021

Nabta Playa

Nabta Playa is the world’s first astronomical site, having been built at an estimated 7000 years ago.  For reference, this was when the Neolithic Revolution was occurring, and agriculture was first being practiced.  In order to assist with this, the Nabta Playa stone circle was built, about 700 miles south of the Great Pyramid of Giza inContinue reading “Nabta Playa” Continue reading

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Evolution of Spectroscopy

Spectroscopy describes the study of the interaction between matter and the wavelength of the light it produces, although this definition has been updated to include anything measured as a function of frequency or wavelength. Isaac Newton was one of the first people to demonstrate that light from the Sun could be scattered into a spectrumContinue reading “Evolution of Spectroscopy” Continue reading

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Mound 72

Image Source Mound 72 is a very interesting example of the knowledge early Native Americans had about astronomy in at least 950 CE. Mound 72 is the sight of one of several “woodhenges” created by the Cahokia people of south west Illinois. These woodhenges were all relatively identical in relation to the positioning of theContinue reading “Mound 72” Continue reading

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