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Mathematics  Viewing 11 to 20 of 219 
Zero in Four Dimensions: Cultural, Historical, Mathematical, and Psychological Perspectives

This site explains the history, value of the concept, and symbol of zero, and its role in mathematics. From a professor at the University of Baltimore.

http://home.ubalt.edu/ntsbarsh/zero/ZERO.HTM 
A Maths Dictionary for Kids

"An animated, interactive dictionary for students which explains over 400 common mathematical terms in simple language" that is full of fun and educational examples.

http://www.amathsdictionaryforkids.com/ 
The Prime Pages: Prime Number Research, Records, and Resources

This site provides a short explanation and history of prime numbers, how to prove primality, and the nature of prime number infinity. Includes charts of the 10 largest known prime numbers and the 10 largest known twin primes, as well as lists of the ...

http://primes.utm.edu/ 
Mathematics and Knots

This exhibition uses mathematics and diagrams to help explain knots. Includes terminology, rules for knot addition, the applications of knot theory, the history of knots, and related links. Exhibition sponsored by the London Mathematical Society.

http://www.popmath.org.uk/exhib/knotexhib.html 
The KnotPlot Site

"Here you will find a [browsable] collection of knots and links, viewed from a (mostly) mathematical perspective. Nearly all of the images here were created with KnotPlot, a fairly elaborate program to visualize and manipulate mathematical knots ...

http://www.knotplot.com/ 
Abacus: The Art of Calculating With Beads

Provides extensive information on the history, construction, and use of the abacus (including detailed instructions on performing addition and subtraction functions), as well as comparisons of abacuses from different cultures. Features an interactive ...

http://www.ee.ryerson.ca:8080/~elf/abacus/ 
Vintage Calculator Web Museum

A virtual museum illustrating and describing "the evolution from mechanical calculator to pocket electronic calculator," covering the late 19th century through 1980. Presents "a selection of handoperated and electromechanical calcula ...

http://www.vintagecalculators.com/ 
Great Circle Calculator

A useful site for calculating direct line distances between any two points on the globe. Enter the latitude and longitude to find the length "as the crow flies" of the arc between the two locations. Distances are given in miles and kilometers.

http://www.gb3pi.org.uk/great.html 
Great Circle Mapper

A site for generating maps of great circle routes (shortest paths between two points on a sphere's surface; technically geodesic paths when referring to the earth) and related information. This hobbyist site warns that its information "may not b ...

http://www.gcmap.com/ 
Geometry From the Land of the Incas

This noisy, colorful, and completely unusual site is an eclectic mix of sound, science, and Incan history intended to interest students in Euclidean geometry. Includes geometry problems, quizzes, quotations, scientific speculation, and more.

http://agutie.homestead.com/ 
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