ラベル

2020年2月23日日曜日

(English) What day is it today? (February 23)

- Sunday, February 23, 1941 [79 years ago]
American chemist Glen Seaborg and others succeeded in synthesizing plutonium-238 for the first time in the world. At the time, the discovery was classified because it was during the war, and a paper will be published about 5 years later
- Wednesday, February 23, 1977 [43 years ago]
Successfully launched Japan's first geostationary satellite, Engineering Test Satellite II (Kiku No. 2), from Tanegashima Space Center. For about 13 years after the start of operation, it is used for acquiring skills such as orbit maintenance and testing of communication equipment
Source: https://www.himekuricalendar.com/
Photo: Akihabara station, Tokyo

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