Sun makes a curve like y = sin x or y = cos x. 
Photos taken every hour for 24 hours 
July 21 19:00 hours to July 22 18:00 hours
 Norway - The Land of the Midnight Sun
North of the arctic circle on the Island of Loppa

Math World

    Reference "just about anything mathematical"

Math Applets
        Diagrams on Home Page from this site
Biographies of Women in Mathematics

University of Nebraska-Summer Math Camp

Library of Congress Homepage

Fibonacci Numbers and the Golden Section

Hyperbolic Functions

Integral Tables

National Curve Bank

  Moving Fractals