Synopsys
Synopsys: A Gentle Intro to Optical Design: Why Is the Sky Blue?
Discusses Rayleigh scattering in plain language and attributes the blueness of the skies to this phenomenon. Discussion of scattering is just one topic of many on this lengthy page of optical topics.
Other
Weather Photography
Source of information on the subject of weather photography. There are great links, images and tips on equipment to use. For the intermediate to advanced photographer.
CK-12 Foundation
Ck 12: Fourth Grade Science
This customizable digital textbook covers topics related to fourth-grade science. It is Next Generation Science Standards (NGSS) aligned.
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.
University of St. Andrews (UK)
University of St. Andrews: Augustin Fresnel
A short biographical sketch on the life and work of Augustin Fresnel (1788-1827). Comments on a few of his scientific accomplishments.
Exploratorium
Exploratorium: Snacks
Exploratorium's snacks aren't edible, but they are good! Use your science skills to discover gravity, learn about biology, do fun experiments.
Optical Society
Optical Society of America: Optics for Kids: Watch Tv Upside Down
An experiment to invert a television image using a magnifying lens. Accompanied by an explanation of what's happening.
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...
Walter Fendt
Walter Fendt: Apps Zur Physik
This site, in German, offers numerous apps that illustrate common physics principles. Apps are organized into categories: mechanics, oscillations and waves, electrodynamics, optics, thermodynamics, the theory of relativity, physics of...