ETEL LILIAN VOYNICHNING “SO‘NA” ASARIDA BOSH QAHRAMONLAR DINAMIKASI

Etel: A Newspaper-Based Distributed Information System

Mathematical Experiments with African Sona Designs

The sona designs of the Chokwe people of Angola/Congo are a particularly attractive form of “mirror curves,” which can be visualized as a curve drawn through a lattice of dots, bouncing off the edges of the lattice and off “mirrors” placed between some of those dots. Most such designs are drawn as a single, uninterrupted line, and most contain symmetries of some type. The mathematics of the des...

Strip Symmetry Groups of African Sona Designs

The sona drawings of the Chokwe people of Angola/Congo are continuous one-line drawings, generally made in the sand, that are often used to build highly symmetric one-line drawings. A large class of these drawings can be viewed as a form of “mirror curves,” visualizable as a curve bouncing through an arrangement of dots, bouncing off “mirrors” placed between some of the dots, and leaving a symm...

Quality of Service and Electronic Newspaper: The Etel Solution

Making electronic newspapers available to users is an attractive business for newspaper editors. The production of electronic newspapers may a priori be realized at low cost using the editor's news base, while enabling to attain a larger audience. However, the success of an electronic newspaper in a commercial setting depends upon the provided quality of service. The newspaper must guarantee to...

The Lilian Greg Occupation Centre for Defective Children

The Lilian Greg Centre was opened in October, 1919, in memory of the late Miss Lilian Greg, a very brilliant teacher, who threw up a great career in order to devote her life and energies to developing to the utmost the life of one mentally deficient child whom she had adopted. In this work Miss Greg was singularly successful, and made the little girl, Marjorie Pasley, a joy, not only to herself...