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Εφευρέσεις Inventions 5 Ιστορία 4 History 3 Technology 3 Τεχνολογία 2 Controlled fusion 1 περισσότερα ... Creative ability 1 Experiments 1 Force and energy 1 Innovations 1 Inventions (History) 1 Logic, Symbolic and mathematical 1 Machinery 1 Marketing 1 Mathematicians 1 Mathematics 1 New products 1 New technology 1 Nuclear fusion 1 Philosophy 1 Product design 1 Product development 1 Products 1 Psychological aspects 1 Psychology 1 Research and development 1 Science 1 Social aspects 1 Sources 1 λιγότερα ...