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Arches National Park Geology Tour provides an extensive, visually rich description of the geology of Arches, by Deborah Ragland, Ph.D. See our DVD collection.

Ancient Epoch


Use these links to learn about ancient philosophers and scientists:


Archimedes
Aristotle
Democritus
En Hedu' Anna
Eratosthenes
Hipparchus
Hypatia
Plato
Ptolemy
Pythagoras
Socrates
Thales

Last modified July 19, 2001 by Jennifer Bergman.

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Our online store includes issues of NESTA's quarterly journal, The Earth Scientist, full of classroom activities on different topics in Earth and space science, as well as books on science education!

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Archimedes

Archimedes was a Greek mathematician and engineer who lived between 287-212 B.C. His greatest contributions are in the field of geometry, where he identified the relationship of a sphere and cylinder's...more

Aristotle

Aristotle was a Greek philosopher who lived between 384-322 B.C. He was one of the greatest thinkers of the world and his written works encompassed all major areas of thought: logic, science, metaphysics,...more

Democritus

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Eratosthenes

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Plato

Plato was a Greek philosopher who lived between 427-327 B.C. In 387 B.C., he founded the Academy in Athens, a school which flourished for about 1,000 years and made many important scientific and mathematic...more

Ptolemy

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Pythagoras

Pythagoras was a Greek philosopher who lived between 580-520 B.C. He founded a philosophical and religious school in Croton, which made outstanding contributions to the field of mathematics. Pythagoras...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA