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History Explorer Results (8)
Related Books (1)
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Grade Range:
K-12
Resource Type(s):
Artifacts
Date Posted:
4/7/2016
Invention rarely stops when the inventor introduces a new device. Thomas A. Edison and his team worked to improve his electric lighting system for some years after the initial introduction in 1880. This lamp shows the changes made after six years of labor aimed at lowering costs and increasing pr
Grade Range:
6-12
Resource Type(s):
Interactives & Media
Duration:
4 minutes
Date Posted:
3/23/2012
Meet Steven Turner, curator at the Smithsonian's National Museum of American History, as he discusses the Smithsonian's scientific instrument collection. This video focuses on the history of acoustics during the 18th and 19th centuries, including demonstrations of wave models, tuning forks, siren
Grade Range:
6-12
Resource Type(s):
Interactives & Media
Duration:
4 minutes
Date Posted:
3/23/2012
Meet Steven Turner, curator at the Smithsonian's National Museum of American History, as he discusses the Smithsonian's scientific instrument collection. This video focuses the science behind and uses for tuning forks, including demonstrations of tuning forks on resonators, the Grand Tonometer, a
Grade Range:
5-12
Resource Type(s):
Reference Materials
Date Posted:
10/11/2009
Explore the process of invention and compare Thomas Edison's well-known work on the electric light bulb a century ago with several modern lighting inventions with this online activity. This resource looks at the process of innovation through a sequence of five steps: prec
Grade Range:
5-12
Resource Type(s):
Artifacts, Primary Sources
Date Posted:
6/10/2009
By the late 19th century, the United States had established itself as a world leader in the area of civil engineering. Perhaps no project better symbolized America's technical prowess than the awe-inspiring Brooklyn Bridge, which connected the nation's largest and third largest cities—New York
Grade Range:
K-12
Resource Type(s):
Artifacts
Date Posted:
3/10/2009
To determine volume, weight, temperature, and time, cooks use measuring cups and spoons (for liquids and dry ingredients), thermometers of all sorts for the oven, freezer, or deep-fat fryer; for chocolate, dough, meat, candy, and jelly; scales for liquids and solids; salometers or hydrometers to
Grade Range:
4-12
Resource Type(s):
Reference Materials, Primary Sources
Date Posted:
1/22/2009
This website focuses on the last handwritten copy of the Gettysburg Address, a manuscript that usually resides out of the public eye in the Lincoln Bedroom of the White house. Also included to help students further explore this important document are a printable version of the manuscript, transcr
Grade Range:
8-12
Resource Type(s):
Reference Materials
Duration:
5 minutes
Date Posted:
8/30/2013
In this post, a Museum staff member answers a question posed by Museum visitors: Why do we celebrate Memorial Day?” A commemoration with a long history, this blog explores the roots and intentions of this spring holiday.  Written by Project Assistant Ryan Lintelman,
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