This interesting and interactive site offers information and activities on exponential functions, tangents and slopes, and "The number e."

Journey with the chicken egg, from formation to hatching, and learn about its embryology.

Uses an egg to demonstrate the concept of axis of symmetry. Put your cursor over the picture to "move" around the egg. Offers links to related concepts, including Cartesian Ovals and Ovals of Cassini.

This site contains an experiment that demonstrates how transporting a tangent vector around a closed path on a sphere will cause it to come back twisted. [Requires Java.]

Formulas on calculating the area of a general quadrilateral and special cases of quadrilaterals.

This site from the University of Illinois explains basic principles of weather radar, its development, and application to weather forcasting. Includes section on how wind patterns are shown using doppler radar.

Animation and text explain the water--or hydrologic--cycle, which is the process that water undergoes in nature.

What causes wind? How does wind affect our weather? This website is neatly organized into topics about pressure, gradient force, Coriolis force, geostrophic wind, gradient wind, friction, boundary layer wind, and sea and land breezes. Text is supported with pictures, videos, and graphs.

Rainbows and sunsets are called "atmospheric optics". They can be caused by light being absorbed, reflected, scattered, refracted, or diffracted by particles in the atmosphere. Learn all about different atmospheric optics along with beautiful photographs in this website.

This site contains a couple different ways that one can forecast the weather. Methods include the Climatology Method, the Analog Method, and Numerical Weather Prediction.

Water is the source of life on earth. It exists in many forms and is constantly changing. The circulation and conservation of earth's water is called the hydrologic (or water) cycle. Find out how water evaporates, condensates, precipitates, transpires, and is transported around the earth.

A scholarly examination of the physics of dance, this reads like the notes of a lecture, so requires some intense reading. It presents a glossary of physics vocabulary, particularly as terms (e.g., torque, static balance) relate to dance movements. Goes on to explain the physics of turning and jumping, and how body size affects the physics.

Excellent and comprehensive site created by the University of Illinois at Urbana-Champaign, Beckman Institute for Advanced Science and Technology. The site has resources about and links to information on a large number of topics in biophysics.