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ICT student textbook/Science Technology and Society (view source)
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File:South-pointing_chariot_(Science_Museum_model).jpg|Model for pointing out direction, China, 200-265
File:South-pointing_chariot_(Science_Museum_model).jpg|Model for pointing out direction, China, 200-265
File:Torquetum.jpg| Torquetum for astronomical instruments,, 1100-1200
File:Torquetum.jpg| Torquetum for astronomical instruments,1100-1200
File:Sliderule_2005.png|Slideruler for calculations, 1630
File:Sliderule_2005.png|Slideruler for calculations, 1630
File:Napier's_calculating_tables.JPG|John Napier's calculating tables, 1642
File:Napier's_calculating_tables.JPG|John Napier's calculating tables, 1642
