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https://goodpiano.vn/tin-tuc/kinh-nghiem/tra-nam-san-xuat-dan-piano-dua-vao-so-serial-5.html YAMAHA UPRIGHT MODEL PEDAL SERIAL. NO. YEAR 　 U1D, U3C U3D 2  110000 - 410000  1959-1965 　 U1E,U2C U3E 3  410000 - 1040000 1965-1970 　 U1F, U2F    U3F 3 1040000 - 1230000 1970-1971 　 U1G, U2G U3G 3 1230000 - 1420000 1971-1972 　 U1H, U2H U3H 3 1420000 - 3130000 1971-1980 　 U1M, U2M U3M 3 3250000 - 3580000 1980-1982 　 U1A, U2A U3A 3 3670000 - 4450000 1982-1987 　 U10BL  U30BL 3 4510000 - 4700000 1987-1989 　 U10A, U30A 3 4700000 - 5330000 1989-1994 　 UX 3 2000000 - 3200000 1975-1980 　 YUA 3 2700000 - 3680000 1978-1982 　 YUS, YUX 3 3250000 - 3580000 1980-1982 　 UX1, UX3  UX5 3 3670000 - 4640000 1982-1988 　 UX2 3 3830000 - 4640000 1983-1988 　 UX10BL  UX30BL  UX50BL 3 4600000 - 4850000　 1988-1990 　 UX10A UX30A  UX50...

nytimes.com What Are the Biggest Problems Facing Us in the 21st Century? The human mind wants to worry. This is not necessarily a bad thing — after all, if a bear is stalking you, worrying about it may well save your life. Although most of us don’t need to lose too much sleep over bears these days, modern life does present plenty of other reasons for concern: terrorism, climate change, the rise of A.I., encroachments on our privacy, even the apparent decline of international cooperation. In his fascinating new book, “21 Lessons for the 21st Century,” the historian Yuval Noah Harari creates a useful framework for confronting these fears. While his previous best sellers, “Sapiens” and “Homo Deus,” covered the past and future respectively, his new book is all about the present. The trick for putting an end to our anxieties, he suggests, is not to stop worrying. It’s to know which things to worry about, and how much to worry about them. As he w...

  Yuval Noah Harari: ‘It takes just one fool to start a war’ (Irish Times 30-8-18)  Why Technology Favors Tyranny (Atlantic September 2018)   Về 3 nhà đại trí thức gốc Áo: Hayek, Popper, và Schumpeter : Hayek, Popper and Schumpeter formulated a response to tyranny   Fukuyama đánh giá di sản Huntington: Huntington's Legacy (American Interest 27-8-18) Phỏng vấn Fukuyama về cuốn sách mới của ông ta : What Follows the End of History? Identity Politics