THE starting place for exploring Geography, from your About.com expert Guide to geography. Learn about all concepts of geography, find geographic information, maps, and more. Includes geographic information about every country and state as well as a vast resource for students and others interested in geography.

Welcome to the TURNBULL world wide web server, named after the mathematician Herbert Westren Turnbull (1885-1961) who was the Regius Professor of ...

Studies modeling, simulation, and design of concurrent, real-time, embedded systems. Focus: assembly of concurrent components. Key underlying principle: use ...

An aid in the study of the Ptolemaic (Macedonian-based Greek), Roman Imperial (Greco-Roman), and Byzantine rulers of Egypt based in Alexandria, this portal site is intended for all classicists and students of Hellenistic history. The House of Ptolemy web site concentrates on the Ptolemies and their world, from 331 - 30 BCE. However, since the histories of Greek rule and subsequent Roman rule overlap (and do so again later with Byzantine rule) this site includes Roman rule in Egypt, and the Byzantine rule that followed. During this almost 1000 years the dominant culture ['Hellenistic'] started as a Greek core with added native Egyptian and other foreign elements. These elements were both blended and kept distinctly separate, sometimes overlying the Greek core incompletely so that today scholars can focus on the Greek facets, the native Egyptian facets, the other outside influences, or all of these together when they discuss The House of Ptolemy and its legacies. Base page at http://www.houseofptolemy.org/

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Biographies of mathematicians