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domingo, 30 de julho de 2017

Collection of problems in physics Sakharov D.I.-Сборник задач по физике Сахаров Д.И. -1967


Сборник задач по физике Сахаров Д.И. -1967
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Dmitry Ivanovich Sakharov (February 19 (March 4), 1889, Moscow - December 15, 1961, Moscow) is a Russian and Soviet physicist, a well-known Moscow teacher of physics, a popularizer of physical knowledge.

DI Sakharov successfully developed the most complicated problems in the methods of teaching physics. In numerous articles in the journal Physics at School, he subjected many of the traditional interpretations of program topics to a subtle analysis, revealing their incompleteness, inaccuracy, and sometimes erroneousness, establishing new, completely scientific approaches to explaining and articulating certain aspects of the physics course, School, and in high school. Dmitri Ivanovich's merit is the elimination of the confusion in the school course about the centrifugal and centripetal forces, the forces of inertia, the introduction of the concept of internal energy into school practice, and the improvement of other central topics of the course.

domingo, 23 de julho de 2017

The 58th International Math Olympiad Closing Ceremony Award Ceremony in 2017 -2017년 제58회 국제수학올림피아드 폐회식 (시상식) - 한국대표단 6명 전원 금메달 수상


2017년 제58회 국제수학올림피아드 폐회식 (시상식) - 한국대표단 6명 전원 금메달 수상

 In Rio de Janeiro, Brazil, six representative students from the International Mathematical Olympiad (IMO) won the gold medal in 2017 at the International Mathematical Olympiad (IMO), which was held from July 12 to 23.
The Korean Mathematical Olympiad