Posted byEthan May 27, 2019February 27, 2026
내일 아침 전국 ‘영하권’…강원 최대 5cm 눈소식
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Airy Disk: A very bright, circular spot of light formed in the center of image which together with the series of concentric rings around is called Airy Pattern.
October 18, 1950: New York Times condemns incompatible system’s adoption
杰西卡·罗森所著《厚土无疆：古代中国的今生与来世》中译本实拍图。