1+–+1300+AD

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 * ** Dates ** || ** Characters ** || ** Theories and discoveries ** ||
 * 83 || Chinese || Loadstone compass ||
 * 100 || Hero of Alexandria || Expansion of air with heat ||
 * 100 || Hero of Alexandria || Laws of light reflection ||
 * 130 || Ptolemy || Geocentric cosmology of epicycles ||
 * 550 || Johannas Philoponus || Impetus keeps a body moving ||
 * 890 || Al-Razi || Atomic of matter and space ||
 * 1000 || Al-hazen || Reflection, refraction and lenses ||
 * 1000 || Al-hazen || Pinhole camera to demonstrate that light travels in straight lines to the eye ||
 * 1121 || Al-khazini || Gravity acts towards centre of Earth ||
 * 1225 || Jordanus Nemorarius || Mechanics of lever and composition of motion ||
 * 1260 || Roger Bacon || Empiricism ||
 * 1267 || Roger Bacon || Magnifying lens ||
 * 1269 || Pierre de Maricourt || Experiments with magnets and compass ||