Curved-crease origami can be designed by considering the properties of ruling lines, lines on the crease pattern that remain straight in the 3D folded form. This technique was developed by David Huffman, who identified conic section curves has being particularly suitable for curved-crease designs. Two examples using ellipses are given as crease patterns.
Modern life and technology modify our world, making it smaller. One of the communities that was born in a virtual environment is flickr, a photo sharing site. That is where I got to know Dáša Ševerová, one of the rising stars in the tessellation and stars field.