University of St. Andrews (UK)
University of St. Andrews: Christiaan Huygens
This University of St. Andrews site contains biographical information and findings of Christiaan Huygens.
Florida State University
Florida State University: Science, Optics & You: E Tienne Louis Malus
Biography of Etienne-Louis Malus (1775-1812), a famous French mathematician and physicist, best known for his work in double refraction and in polarization.
Wolfram Research
Wolfram Science World: Fresnel, Augustin
This site from ScienceWorld provides a short biographical sketch of Augustin Fresnel (1788-1827 CE) and describes his most notable scientific discoveries and contributions. Links are provided throughout for additional information.
Other
Gem Hut: Zircon
This commercial page gives information about the physical properties of zircon, its appearance, and where it can be found. Includes pictures and tables.
Wolfram Research
Wolfram Science World: Young, Thomas
This site from ScienceWorld provides a very short but factual biographical sketch of Thomas Young (1773-1829 CE) and describes his most notable scientific discoveries and contributions. Links are also provided throughout for additional...