ZipMath (Popularity: )

World database with latitude and longitude coordinates. Includes formula for calculating the distance between any ...
Category: Science\Social Sciences\Geography\Geographic Information Systems

Backcountry Navigation (Popularity: )

Describes how to use a compass and a topographical map to navigate cross country.
Category: Science\Earth Sciences\Geomatics\Navigation

How Electromagnetic Propulsion Will Work (Popularity: )

Illustrated tutorial shows how Goodwin's electromagnetic-propulsion system works and how it could send spacecraft deep ...
Category: Science\Technology\Mechanical Engineering\Propulsion

Digraphs: Theory, Algorithms and Applications (Popularity: )

A comprehensive source of results, notions and open problems on directed graphs, with 12 chapters, ...
Category: Science\Math\Combinatorics\Graph Theory

HowStuffWorks: How Air Traffic Control Works (Popularity: )

Fully illustrated tutorial examines air traffic control in the United States. Follow a flight from ...
Category: Science\Technology\Aerospace\Aeronautics