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Science Math Medicine Technology Engineering

Resources on ancient science, medicine, mathematics, technology, and engineering.

Latitude
The lines of latitude run horizontally parallel to each other. The word latitude comes from a Latin word for "wide" (latus>>latitudo).

First Battery - The Baghdad Battery
The first battery may have been created in Baghdad.

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Advertising Info \| News & Events \| Work at About \| SiteMap \| Reprints \| Help	Our Story \| Be a Guide
User Agreement \| Ethics Policy \| Patent Info. \| Privacy Policy	©2008 About, Inc., A part of The New York Times Company. All rights reserved.