This interactive tutorial on visualizing geologic features contains animated block diagrams that show how the surface expressions of dipping layers, folds, igneous intrusions, and faults are related to subsurface structure and cross...

This animation will complement the diagrams of muscle function in advanced level texts. A good visualization of the process.

This animation will complement the diagrams of muscle function in advanced level texts. A good visualization of the process.

Discover the alpha-helix and the beta sheet, both secondary structures of proteins. View diagrams and a 3-D model of the different parts of a protein molecule.

A plan of Fort Herkimer on the Mohawk River, originally built during the French and Indian War, and rebuilt during the American Revolutionary War (1776, renamed Fort Dayton). The fort was destroyed during the building of the Erie Canal...