Measurement Around the World
Following are links to Internet resources that can be used to support instruction of the
Math World feature for this chapter.
The United States Naval Observatory -- Time Service Department
This is the official Web site of the United States Naval Observatory's time service, where you'll find information on how their Global Positioning System tells time, the history of timekeeping at the USNO, and clocks of the future.
The Galileo Project
This extensive site at Rice University in Houston, Texas covers the life and work of Galileo Galilei. There is a tour of his villa, maps of places where he lived and worked, a searchable database of science of the 16th and 17th centuries, and a time line of Galileo's most important discoveries and works.
WebMuseum, Paris: Pure Abstraction
Many of the paintings by Piet Mondrian and Kasimir Malevich are composed entirely of simple geometric shapes. These images are provided by the WebMuseum, a network of mirrored sites providing art images around the clock and around the world.
A Walk Through Time
This marvelous Web site describes and illustrates the ways people have measured time throughout the ages, from ancient stone calendars to modern atomic clocks. The National Institute of Standards and Technology created and hosts this site.
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