XS4ALL - internet, bellen, televisie en hosting

Description: De kwaliteitsprovider van Nederland voor Internet, Bellen, Televisie, Hosting, Zakelijk en Mobiel Internet. Meer veiligheid, stabiliteit en service.

Keywords: Internet, ADSL, bellen, Televisie, TV, Service, internet, Business DSL, mobiel internet, e-mail, maatschappelijk, helpdesk, webmail, website, zakelijk, telewerken, hosting, colocation, veiligheid, snelheid, overstappen, hotspots, klantenservice

Xs4all.nl has 1,021 URLs listed in 963 Dmoz categories.

Wolter Schraa's Galleries
Employs traditional, range, tessellation, and touching sphere techniques.
http://www.xs4all.nl/~wolter/
Top/Science/Math/Chaos_and_Fractals/Fractal_Art

A New Extreme ABC-example
Explanation of an example with quality 1.920859, found by Benne de Weger and Niklas Broberg.
http://deweger.xs4all.nl/oud/broberg.txt
Top/Science/Math/Number_Theory/Open_Problems/ABC_Conjecture

Prime Music
A musical piece translating prime factorizations to frequencies. Requires RealPlayer.
http://www.xs4all.nl/~limonade/limonades/priem/primemusic.html
Top/Science/Math/Number_Theory/Prime_Numbers

Siamese Method
The Siamese method generates odd squares of any order above one. Explains the mathematics behind the scenes.
http://www.xs4all.nl/~thospel/siamese.html
Top/Science/Math/Recreations/Magic_Square

Gerard's Universal Polyomino Solver
Computes from 1 to 3.38 billion solutions with graphic display to each of the 60+ problems of different sizes and shapes. Pieces vary from pentominoes to heptominoes, sometimes in combination. Table summarizes properties and example solution of each pro
http://www.xs4all.nl/~gp/PolyominoSolver/Polyomino.html
Top/Science/Math/Recreations/Polyominoes

Gerard's Pentomino Page
Illustrates the 12 shapes. symmetrical combinations.
http://www.xs4all.nl/~gp/pentomino.html
Top/Science/Math/Recreations/Polyominoes

Diatom images
Images of diatom slides, both fossil and recent.
http://www.xs4all.nl/~hummelrh/index.html
Top/Science/Methods_and_Techniques/Microscopy/Light_Microscopy

Physics Formulae
A collection of frequently used physics equations compiled into several downloadable formats.
http://www.xs4all.nl/~johanw/contents.html
Top/Science/Physics/Reference

E-mail Directory for Irish Archaeology
List compiled by Thaddeus C. Breen of E-mail addresses of professional archaeologists, postgraduate students and companies working in, or doing research into, Irish archaeology.
http://www.xs4all.nl/~tbreen/directry.html
Top/Science/Social_Sciences/Archaeology/Archaeologists/Europe/Ireland

Haarlem Archaeological Workgroup
Dedicated to the investigation and preservation of the archaeological resources of Haarlem.
http://www.xs4all.nl/~kammdijk/en/index.html
Top/Science/Social_Sciences/Archaeology/Organizations/Europe/Netherlands