From a wonderful compilation of 10,000 images by Mary Ann Sullivan of Bluffton College. There are images of the exterior of the National Gallery of Art from all angles. This building is designed by I.M. Pei, the 1983 selection for the...

This diagram shows the forces of lift that affect the wing of an aircraft. Lift, thrust, weight and drag all affect the flight of the aircraft as well as the angle of attack.

This site gives the definition of an acute triangle, along with examples and related terms.

This site provides a general definition, complete with a diagram, of an angle bisector.

Mathwords provides a brief definition and diagram of an angle bisector.

The meaning and cause of refraction--as well as Snell's law of refraction--are discussed. Includes an interactive problem-solving form in which visitors relate angles of refraction to the incident angle and the indices of refraction.

A map of Scotland, England and Wales showing the settlements of the Saxons and Angles from the landing of Hengist and Horsa at Ebbsfleet on the shores of the Isle of Thanet (AD 449) to the Saxon Heptarchy (AD 626). "By these invasions...

This wooden plumb level consists of two short pieces projecting at right angles from a longer slab and bears the name of its owner, Sennedjem, who was a chief artisan.

Guilloche, usually spelled without the acute accent on the final e, describes a repetitive architectural pattern widely used in classical Greece and Rome, consisting of two ribbons that wind around a series of regular central points....

A map of northeast Kent and the Thames Estuary at the time of the Saxon invasions, around AD 450. The map is color-coded to show the territories of the Britons in pink, the Saxons in orange, and the Angles in green. Although the Romans...

This lesson gives a tutorial on the measure of an angle. Includes sample problems and solutions.

A detailed look at the aerodynamic principles associated with cycling. Good science and even better web page design. Includes an online calculator that allows the user to calculate the aerodynamic drag and propulsive power of a bicyclist...

This site from the University of Saint Andrews provides a short biography of Pascal. Takes a philosophical angle. Features links to existentialist philosophy, seventeenth and eighteenth century literature, and philosophy pages.

This ASU biographical sketch depicts a man in the 1800's who was consumed by French horn music. As a composer and conductor, he viewed music from many angles. His beliefs about the playing of the French horn are interesting and...

This physics department site explains how prisms work and their purpose in the dispersion of light. Explains the angle of deviation and includes an interactive form in which visitors calculate the angle of deviation and receive immediate...

This physics department site explains how prisms work and their purpose in the dispersion of light. Explains the angle of deviation and includes an interactive form in which visitors calculate the angle of deviation and receive immediate...

This physics department site explains how prisms work and their purpose in the dispersion of light. Explains the angle of deviation and includes an interactive form in which visitors calculate the angle of deviation and receive immediate...

Students perform many inquiry activities related to Earth's orbit. Included are recording daily temperatures, observing the sun's path over several weeks, tracking sunrise and sunset times, and angle of sunlight. Diagrams make lessons...

Students perform many inquiry activities related to Earth's orbit. Included are recording daily temperatures, observing the sun's path over several weeks, tracking sunrise and sunset times, and angle of sunlight. Diagrams make lessons...

This photo shows a unique angle of a raging forest wildfire as the flames rip though the trees, creating intense heat and a deep glow.

This picture shows an equilateral triangle, a three sided regular polygon with internal angles of 60 degrees and sides of equal length.

A map of England and Wales in AD 550, after the departure of the Romans (AD 410) and during the migration of the Angles, Saxons, and Jutes from Europe. The map is color-coded to show the territories of the native Britons or Welsh,...

A map of California from 1906 showing the State capital of Sacramento, major cities and towns, railroads, mountain systems, lakes, rivers, and coastal features. Two inset maps detail the San Francisco Bay area and the vicinity of Los...

A map of England and Wales in AD 584 at the end of the conquest of the Britons by West Saxons under Ceawlin and Cutha. The map is color-coded to show the territories of the native Britons or Welsh, Angles, Saxons, Jutes, and the Scots...