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History Explorer Results (33)
Related Books (8)
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Grade Range:
6-12
Resource Type(s):
Reference Materials, Interactives & Media
Date Posted:
3/9/2016
Throughout the 1800s, homegrown American scientists and inventors were a source of pride for the fledgling republic, which was rapidly surpassing Great Britain and the rest of Europe as a hotbed of industrial activity. The period also coincided with the peak of the Romantic Period in art, music,
Grade Range:
8-12
Resource Type(s):
Reference Materials
Date Posted:
8/12/2021
“The word “philanthropy” has had different meanings throughout American history, and the changing fortunes of the word reflect various eras’ debates about exercising power through giving. African American women in Philadelphia presented this fireman’s presentation trumpet to white firemen
Grade Range:
K-12
Resource Type(s):
Artifacts
Date Posted:
12/30/2020
Amber Melton made this robot at CompSciConnect, a University of Maryland camp. When few girls signed up for the university’s computer science classes, Dr. Jan Plane realized that something in the high schools wasn’t working. So she created a camp for middle schoolers to excite them about compute
Grade Range:
K-12
Resource Type(s):
Artifacts, Primary Sources
Date Posted:
9/3/2020
In 1906 Ng Shee Lee packed her clothes and belongings in this trunk and left China for America. It was a difficult trip. She slept next to the noisy engine room; arriving tired and sick in San Francisco she was met by the devastating 1906 earthquake. Ng Shee then made her way alone by train across C
Grade Range:
K-12
Resource Type(s):
Artifacts
Date Posted:
4/4/2016
Most incandescent lamps were designed for general use in homes and businesses. However, some required special features for use in particular locations. Westinghouse engineers designed this so-called mill lamp for use in factories and other areas subject to high levels of vibration. An intricate i
Grade Range:
K-12
Resource Type(s):
Artifacts
Date Posted:
4/4/2016
New United Motor Manufacturing Incorporated (NUMMI) was an auto manufacturing plant in Fremont, California, operated jointly by Toyota and General Motors from 1984 until 2010. GM had operated the plant at Fremont from 1960 where the clashes between management and union workers resulted in the pla
Grade Range:
K-12
Resource Type(s):
Artifacts
Date Posted:
3/28/2016
Before 1954, so-called portable radio receivers used vacuum tubes to receive and amplify signals. The large batteries needed to power most tubes made radios large and heavy. Receivers built with subminiature tubes existed but were expensive. The invention of transistors in 1947 allowed engineers
Grade Range:
6-12
Resource Type(s):
Reference Materials, Interactives & Media
Duration:
5 minutes
Date Posted:
5/15/2014
The history of patenting higher-level organisms began in the mid-1980s with a little guy called OncoMouse. In this episode, host Tory Altman joins Mallory Warner of the Museum's Division of Medicine and Science to talk about the first animal patented in the United States, and some of the ethical
Grade Range:
5-12
Resource Type(s):
Reference Materials
Date Posted:
9/4/2013
Between the years 1790 and 1880 the U.S. Patent Office required both documentation and a three-dimensional working model to demonstrate each new invention submitted for a patent. The models helped to explain proposed innovations and compare them against similar inventions. In this online exhibiti
Grade Range:
8-12
Resource Type(s):
Reference Materials
Duration:
5 minutes
Date Posted:
8/30/2013
In this post, readers join a New York architect in 1968 as he explores the usefulness of the Empire State Building and its potential for the future.  Including a portion of the architect’s testimony to the Y Supreme Court, this blog asks readers to consider the non-monetary value of a stru
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