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2023年7月23日
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The Antikythera Mechanism

Image Credit & License: Marsyas, Wikipedia

apod.nasa.gov/apod/ap230723.ht

https://apod.nasa.gov/apod/ap230723.html
A different astronomy and space science related image is featured each day, along with a brief explanation.
An old and corroded mechanism is shown fronted by a large wheel. The mechanism has patches of tan and brown color but it is mostly green.
2023年7月23日