This cardboard CARE package, contains seven smaller boxes and bags of macaroni, cornmeal, Carnation instant chocolate
History Explorer Results (3)
Related Books (0)
Grade Range:
6-8
Resource Type(s):
Interactives & Media, Worksheets
Duration:
16 minutes
Date Posted:
9/23/2010
In this episode of the History Explorer podcast, curator Hal Wallace talks about the development of the laser, an invention that has as many practical uses as portrayals in science fiction and fantasy. In addition to audio, this resource includes related images and a teachers guid
Grade Range:
K-12
Resource Type(s):
Artifacts, Primary Sources
Date Posted:
3/9/2009
During the 1880s, the engineer Herman Hollerith devised a set of machines for compiling data from the United States Census. Hollerith's tabulating system included a punch for entering data about each person onto a blank card, a tabulator for reading the cards and summing up information, and a sor
Grade Range:
K-12
Resource Type(s):
Artifacts, Primary Sources
Date Posted:
7/8/2008
The Apple Macintosh introduced a graphic user interface (GUI) to the Apple line of computers. The idea had originated at Xerox's Palo Alto Research Center in the 1970s, but Xerox was slow to commercialize it. Apple proved far more successful when it introduced the Macintosh in January 1984, with
