Zero Bio
Zero Bio: Cellular Respiration Game
Make sure you know your facts before playing this game! Concepts of cellular respiration are the focal point of the questions. Get them correct and hit the target, or get them wrong and your arrow will flop.
Walter Fendt
Walter Fendt: Refracting Astronomical Telescope
An app for investigating the operation of a refracting telescope. The location of the eyepiece and objective lens can be altered, and the focal point and path of light through the lenses can be observed.
Exploratorium
Exploratorium: Water Sphere Lens
A discussion of how to make a magnifying lens exhibit using a water-filled flask and a light bulb. Consists of assembly instructions and a "To do and notice" section. Great for a teacher demonstration or a student project.
Curated OER
Unesco: Brazil: Historic Town of Ouro Preto
Founded at the end of the 17th century, Ouro Preto (Black Gold) was the focal point of the gold rush and Brazil’s golden age in the 18th century. With the exhaustion of the gold mines in the 19th century, the city’s influence declined...
Curated OER
Wikipedia: Natl Historic Landmarks in Al: Montgomery Union Station and Trainshed
Constructed in 1898, this is an example of late 19th-century commercial architecture. It served as the focal point of transportation into Montgomery. The train shed is significant in that it shows the adaptation of bridge-building...
Curated OER
Wikipedia: National Historic Landmarks in Kansas: Fort Scott
This fort, established in 1842 and abandoned in 1853, served first as a frontier outpost along the "Permanent Indian Frontier", then as a Civil War garrison. During the Civil War, the fort was a major focal point of black troop activity...
Curated OER
Wikipedia: Natl Historic Landmarks in Arkansas: Little Rock Central High School
Focal point of the Little Rock Integration Crisis of 1957.
Curated OER
Wikipedia: National Historic Landmarks in Massachusetts: Springfield Armory
Until 1968 this site was a part of the nation's first armories and weapons production facilities, and a major military research facility. It was a focal point of the 1787 Shays' Rebellion, a local uprising against oppressive state fiscal...
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