A place for those who like to take fun quizzes and especially for those who like to make them. Quizzes are designed by users of the system.

Retrieves molecular biology data and bibliographic citations from the NCBI`s integrated databases.

An information source for scientific, technical, and medical research. Subscription required for some sections.

A selection of photos and technical drawings showing fuel cell technology. Google.

Translates text and web pages from one language to another, including English, German, Spanish, French, Italian, Portuguese, and Russian.

News, links, mission schedules, and NASA for kids.

Explore National Geographic Online. A world leader in geography, cartography and exploration.

International Conference for Physics Students in Zadar, Croatia (August 4-11, 2000).

Search patent and trademark databases for free online. Information regarding the patent and trademark process in the United States.

The National Oceanic and Atmospheric Administration of the US.

The vocabulary of everyday life.

Weather, climate and hydrology services; also details educational projects, publications, and contacts for the organization.

Complete information on Hurricanes and Tropical Storms, including all advisories, watches and warnings.

International weekly refereed journal of scientific research. Free registration for searchable abstracts: full content requires subscription.

Scans of print journals, with 10 major math journals (requires subscription).

Information about scientific books and journals of the Springer publishing group, CD-ROM publications, software products, and catalogues, and online access (by subscription) to some contents.

Free translation of web sites and text for Spanish, French, and German to English and English to Spanish, French and German, Italian and Portuguese.

A free website dedicated to learning through exploration and communication.

Department of Numerical Analysis and Computer Science

Lists population, government, military, and economic information for nations recognized by the United States.

Managed for NASA by the California Institute of Technology, JPL is the leading U.S. center for robotic exploration of the solar system.