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56 years ago #Today, Jocelyn Bell was surveying the sky with the Interplanetary Scintillation Array in Cambridge, when she picked up a pulsating signal with a period of 1.3373 seconds.
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56 years ago #Today, Jocelyn Bell was surveying the sky with the Interplanetary Scintillation Array in Cambridge, when she picked up a pulsating signal with a period of 1.3373 seconds.
The power and regularity of the signals were briefly thought to resemble an extraterrestrial…
有趣
(
twitter.com)
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Massimo
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At the social apex this week, Xi Jinping was celebrated as a model son for Father’s Day, although some of his own remarks from years ago, surfaced by netizens, entirely contradicted the propaganda.
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At the social apex this week, Xi Jinping was celebrated as a model son for Father’s Day, although some of his own remarks from years ago, surfaced by netizens, entirely contradicted the propaganda.
In the middle, schoolteachers faced yet more official loyalty tests as the
时政
(
teachernotteacher.substack.com)
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李老师不是你老师
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Born 280 years ago #Today, Antoine Lavoisier changed chemistry from a qualitative to a quantitative science. He recognized and named oxygen and hydrogen, helped construct the metric system, wrote the first extensive list of elements and devised the law of conservation of mass
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Born 280 years ago #Today, Antoine Lavoisier changed chemistry from a qualitative to a quantitative science. He recognized and named oxygen and hydrogen, helped construct the metric system, wrote the first extensive list of elements and devised the law of conservation of mass
有趣
(
twitter.com)
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Massimo