From 3D length to 3D duration

We observe the sun and the moon traversing the sky. We know that the moon is objectively orbiting the earth but the sun is not. Where then is the sun that is observed traversing the sky in daily and annual cycles? It is not in 3D length. It is in 3D duration. Binary stars orbit […]

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Clock race

This post continues previous ones contrasting ancient and modern space and time, such as here. The above bronze-age depiction of the Sun on a chariot shows a common image from antiquity: the Sun crossing the heavens daily. The path of the Sun was also described as traversing a celestial circle (or sphere) and going around

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