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History Explorer Results (8)
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Grade Range:
K-12
Resource Type(s):
Artifacts
Date Posted:
9/17/2015
One of two telephones used by Alexander Graham Bell in a demonstration that took place between Boston and Salem, Massachusetts on November 26, 1876. Critical features are the iron diaphragm (seen as a black circular disc mounted on the vertical wooden support), two electromagnets (seen in white,
Grade Range:
K-12
Resource Type(s):
Artifacts, Primary Sources
Date Posted:
3/27/2012
In the early nineteenth century, lighthouses in the United States were considered inferior to those in France and England. American mariners complained about the quality of the light emanating from local lighthouse towers, arguing that European lighthouses were more effective at shining bright be
Grade Range:
K-12
Resource Type(s):
Artifacts, Primary Sources
Date Posted:
3/23/2012
This is a set of eight "dropping sticks" used to teach acoustics. It was made in Paris by the famous scientific instrument maker Rudolph Koenig, sometime between 1858 and 1902. This particular set was used in the introductory physics class of the Worcester Polytechnic Institute. These s
Grade Range:
6-12
Resource Type(s):
Interactives & Media
Duration:
2 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 plate developed by the 18th century scientist Chladni whose instruments create visual representations of wave pattern
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:
3 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 models used to represent the movement of sound waves, including demonstrations of wave models by Kohl, Ricky, and Crova, as
Grade Range:
K-12
Resource Type(s):
Artifacts, Primary Sources
Date Posted:
5/6/2010
This sign was purchased by a North Beach second-hand shop from a proprietor in the neighboring Chinatown district of San Francisco. It is said to date from between 1890 and 1910. If that is so, the sign’s survival is quite miraculous: The 1906 earthquake in April of that year caused much damage
Grade Range:
K-12
Resource Type(s):
Artifacts, Primary Sources
Date Posted:
3/10/2009
Daguerreotype of Unitarian Congregational Church, New York City. On the Washington Square campus of the New York University, Samuel F.B. Morse and Dr. John W. Draper operated together one of the first American photographic studios for a short time, from 1839 to the early 1840s. Collaborating on t
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