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On the shoulders of eastern giants: the forgotten contributions of medieval physicists

On the shoulders of eastern giants: the forgotten contributions of medieval physicists

Lecture by Jim Al-Khalili, Professor of Physics at the University of Surrey

Given at the University of Edinburgh, on May 10, 2012

We learn at school that Isaac Newton is the father of modern optics, that Copernicus heralded the birth of astronomy, and that it is Snell’s law of refraction. But what is the debt these men owe to the physicists and astronomers of the medieval Islamic Empire?

Men such as ibn al-Haytham, the greatest physicist in the two thousand year span between Archimedes and Newton, and whose Book of Optics was just as influential as Newton’s seven centuries later; or Avicenna and Biruni the Persian polymaths who argued over such topics as why ice floats and whether parallel universes exist; or Ibn Sahl who came up with the correct law of refraction many centuries before Snell; or the astronomers al-Tusi and ibn al-Shatir, without whom Copernicus would not have been able to formulate his heliocentric model of the solar system.

In this lecture I will describe these characters and their forgotten contribution to physics and astronomy.

Click here to visit┬áJim Al-Khalili’s Website

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