- ›› Curriculum Subject : Science, Technology, Engineering and Math
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This August 1762 letter from Washington to his brother-in-law Burwell Bassett reveals the young Washington as a lively and convivial correspondent.
Students will examine primary sources including letters, a patent, photos, and diagrams to identify and describe the technological invention and development of the telegraph that evolved during the nineteenth century.Background:
Prior to 1830, communication across the country was limited to overland mail, which took approximately a month to reach its destination, or by the pony express, which...
During the time of the American Revolution, much of the land in the colonies was not mapped. In his early years, George Washington was a surveyor and measured land to figure out the location of property.Materials Rope or string measuring 10- to 12-feet long Stakes—if working on grass Tape—colored if possible Graph, centimeter, or one-inch grid...
Benjamin Franklin was a scientist and an inventor. As he got older, he noticed he needed glasses for reading and seeing things far away. Franklin solved this problem by inventing bifocals, which were glasses made with two different lenses, one for seeing things up close, and the other for seeing things far away.
Water acts just like corrective lenses made of plastic or glass. The water refracts or changes the direction of a light beam. A water lens is known as a convex lens because it curves out in the middle....
The inauguration of a new service, the Pony Express, on April 3, 1860, promised the fastest communication ever from the Missouri River to California. How long did a Pony Express message take to go from its starting point in St. Joseph, Missouri to Sacramento, California? How many years was the Pony Express in existence? How many riders were employed? What hardships did the riders experience? Finding the answers to these questions and many more like them captivates youngsters, encouraging them to read...
George Pullman: His Impact on the Railroad Industry, Labor, and American Life in the Nineteenth Century
George Mortimer Pullman was an influential industrialist of the nineteenth century and the founder of the Pullman Palace Car Company. His innovations brought comfort and luxury to railroad travel in the 1800s with the introduction of sleeping cars, dining cars, and parlor cars. Like other industrialists of the period Pullman built a company town near his factory to accommodate his workers’ housing needs. He advertised it as a model community which offered his workers modern amenities in a beautiful setting. By 1890, the...