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The book describes man's discoveries of parts of planet Earth that were accidental or planned. The period from 50,000 years ago to today's efforts in space exploration is described.
At the Sources of Mathematics is a popular science work by Croatian mathematician, Japanologist, and academician Vladimir Devidé (1925–2010), published in 1979 in Osijek.
The book describes man's discoveries of parts of planet Earth that were accidental or planned. The period from 50,000 years ago to today's efforts in space exploration is described.
Answers to 244 more questions from the world of science
The work contains a variety of quizzes, intellectual games and puzzles, intended to entertain and stimulate thinking. "Quizology" is ideal for fans of board games, quizzes and intellectual challenges, providing hours of fun and learning.
The work was originally published in 1959 and was awarded the first prize for the promotion of literature for children and young people in 1960 and has been translated into several languages. As a follow-up, Rackwitz wrote "Sunken Worlds - Far S