Teach Engineering
Concentrated Solar Power
The seventh segment in an eight-part unit promotes the idea of concentrating the sun to increase the power of a photovoltaic panel. Pupils learn about devices used such as reflectors or lenses.
Boston University
Bu: Optics: Geometric Optics
Several short descriptions of demonstrations which illustrate principles of geometric optics (many of which focus upon refraction).
Other
University of Edinburgh: Glossary of Introductory Computer Graphics Terms
This website, from the University of Edinburgh, provides a lengthy glossary of computer graphics terms written by Olin Lathrop, author of "The Way Computer Graphics Work". This site provides simple definitions of basic terms; no graphics...