1,721,011 research outputs found
Perhaps, an extension
No full textWithin the framework of my PhD 'Urban objects, a thing theory for Urbanism' there is a particular object O. Landuyt made that plays a fundamental role in my reflection on our physical relationship to the city through objects. An urban object par exellence, the jewel O. Landuyt named Brussel.status: Publishe
Brussels’ Skew Sphere
No full textPisa has its leaning tower, Brussels its Atomium. But since the 2006 restoration, one of the spheres is covered by an irregular hexagon and trapeziumshaped rectangles, while an axis is off center; moreover, the whole structure now blinks like a dented
casserole.status: Publishe
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Alchemie met verhoudingen
No full textEnkele Franse auteurs stootten Le Corbusier eerder al van zijn voetstuk door zijn fascistische verleden bloot te leggen. Nu blijkt ook zijn meest elementaire wiskunde fout te zitten. Zijn beroemde ‘Modulor’ was zelfs doelbewust misleidend.status: Publishe
In Afrikaans perspectief
No full textAfrikaanse kunst is vaak geschilderd in ‘naïeve stijl’, het
perspectief lijkt niet helemaal te kloppen. Wiskundig kloppen de tekeningen wel.status: Publishe
De ontdekking van een nieuwe serie van uniforme veelvlakken
No full textThe main topic of my research is my discovery of a new series of uniform polyhedra, which I have named 'uniform helical star columns', or for short UHSCs. Uniform helical star columns are polyhedra built from equilateral triangles, in which the triangular faces intersect. There is an infinity of UHSCs and yet we can distinguish two different classes. One of the reasons to do this research was the aesthetic quality I found in most of the UHSCs. It became the basis for my sculptural work.
The history of the regular polyhedra starts around 400 B.C., but important developments are still taking place, as we can see in Branko Grünbaum's paper '"New" uniform polyhedra', published in 2003. In fact, the question as to what constitutes a polyhedron is one that has been actively discussed over many centuries, and can still be a controversial topic today. All definitions seem to agree that a polyhedron consists of vertices, edges, and faces, in which the faces are (planar) polygons, the vertices are corners and edges are sides of those polygons, and each edge is incident with exactly two vertices and exactly two faces. Also, any two faces (any two vertices) of a polyhedron are connected by a chain of mutually incident faces (mutually incident edges). All polyhedra discussed in this thesis satisfy these requirements, and additional conditions are described for special polyhedra. In order to get a good understanding of the new uniform polyhedra, and especially of the UHSCs it is important to have adequate tools for visualizing these polyhedra. Therefore, the first part of this thesis is devoted to the visualization of polyhedra. Visualization of polyhedra also has a long history, but for these new polyhedra I had to develop new tools, for which I made use of the now available computer techniques. The helical shape and the helical movement are essential for the new UHSCs. It turns out that helical movement can be used in different ways, not only to construct, but also to explain the structure of polyhedra with intersecting faces. The helical movement called 'helixation' is defined as a transformation and is compared to another helical transformation, the Jitterbug transformation. This led to the discovery of yet another infinite uniform polyhedron, an addition to the three Petrie-Coxeter polyhedra. The construction of the UHSCs is investigated in various ways (both virtual and real). Traditional folding techniques, but now transformed to virtual reality, are used to show how a UHSC can be constructed.status: Publishe
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
On Infinite Kepler-Poinsot Polyhedra
No full textAvailable online at \url{http://archive.bridgesmathart.org/2017/bridges2017-313.pdfstatus: Publishe
- …
