Scholars A-Z

'Ali ibn 'Isa was a notable oculist (kahhal) of Baghdad whose life falls in the first half of the 11th century. His main work is Tadkirat Al-kahhalin (Manual for Oculists or Note-book of the Oculists). It is the classical handbook of Muslim ophthalmology, translated once into Hebrew and twice into L...
He was an Astronomer. Together with khalid Ben Abdulmelik in 827, he measured the Earth's circumference, getting a result of 40,248 km (or, according to other sources, 41,436 km).
Born on 998 Died on 1061
An Egyptian physician, astrologer and astronomer, born in Jiza (ca. 998-ca. 1061). He was a commentator on Greek medicine, and in particular on Galen and Hippocrates. He is also known for his observation of the Supernova that appeared in the sky in 1006, which he mentioned in his commentary on Ptole...
Born on 26 Dec, 1926
Ali Javan is an Iranian American physicist and inventor at MIT. His main contributions to science have been in the fields of quantum physics and spectroscopy. He co-invented the gas laser in 1960, with William R. Bennett. In 2007 Javan was ranked Number 12 on the list of the "Top 100 Living Gen...

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