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3 天前 · Ernest Miller Hemingway ( / ˈɜːrnɪst ˈhɛmɪŋweɪ /; July 21, 1899 – July 2, 1961) was an American novelist, short-story writer and journalist. Best known for an economical, understated style that significantly influenced later 20th-century writers, he is often romanticized for his adventurous lifestyle, and outspoken and blunt public ...
4 天前 · Alzheimer's disease ( AD) is a neurodegenerative disease that usually starts slowly and progressively worsens, [2] and is the cause of 60–70% of cases of dementia. [2] [15] The most common early symptom is difficulty in remembering recent events. [1] As the disease advances, symptoms can include problems with language, disorientation ...
- Over 65 years old
1 天前 · Mark Elliot Zuckerberg (/ ˈ z ʌ k ər b ɜːr ɡ /; born May 14, 1984) is an American businessman and philanthropist.He co-founded the social media service Facebook, along with his Harvard roommates in 2004, and its parent company Meta Platforms (formerly Facebook, Inc.), of which he is chairman, chief executive officer and controlling shareholder.
2 天前 · Judith Pamela Butler[1] (born February 24, 1956) is an American philosopher and gender studies scholar whose work has influenced political philosophy, ethics, and the fields of third-wave feminism,[2] queer theory,[3] and literary theory.[4] In 1993, Butler began teaching at the University of California, Berkeley, where they[a] have served ...
5 天前 · Cynthia Ann Stephanie Lauper (/ˈlɔːpər/; born June 22, 1953) is an American singer, songwriter, actress, and activist.[2] Her career has spanned over 40 years.[3] Her album She's So Unusual (1983) was the first debut album by a female artist to achieve four top-five hits on the Billboard Hot 100—"Girls Just Want to Have Fun", "Time After ...
4 天前 · Canonical commutation rule for position q and momentum p variables of a particle, 1927. pq − qp = h / (2 πi ). Uncertainty principle of Heisenberg, 1927. The uncertainty principle, also known as Heisenberg's indeterminacy principle, is a fundamental concept in quantum mechanics. It states that there is a limit to the precision with which ...
2 天前 · The archaic human species of Homo erectus arrived in Eurasia sometime between 1.3 and 1.8 million years ago (Ma) and numerous remains of its subspecies have been found in what is now China. The oldest of these is the southwestern Yuanmou Man (元谋人; in Yunnan), dated to c. 1.7 Ma, which lived in a mixed bushland-forest environment alongside chalicotheres, deer, the elephant Stegodon ...
