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"...the latest National Atlas includes electronic maps and services that are delivered online. We are using information presentation, access, and delivery technologies that didn't exist 30 years ago to bring you a dynamic and interactive atlas. But we have held fast to our tradition of producing the finest maps in the world. We think nationalatlas.gov™ is more useful than any bound collection of paper maps." Work with multiple map layers

Zoom into Microscopic Worlds With the Java applet Secret Worlds: The Universe Within, your students can view the Milky Way at 10 million light-years from Earth. Then they can move through space toward Earth in successive orders of magnitude until they reach a tall oak tree just outside the buildings of the National High Magnetic Field Laboratory in Tallahassee, Florida. After that, they can begin to move from the actual size of a leaf into a microscopic world that reveals leaf cell walls, the cell nucleus, chromatin, DNA and, finally, into the subatomic universe of electrons and protons.