The 1998 Nexus conference on
architecture and mathematics continues the dialogue begun two
years ago with Nexus
'96. It is certainly not surprising to find mathematics in
architecture: architecture has dimension, and therefore has number;
it
is composed of various
related elements, and therefore contains proportion. But on a
more profound level, architecture and mathematics are both symbol
systems aimed at expressing ideas, such as infinity, or identity.
The presentations at this year's conference examine in depth some
of the ideas underlying both architectural compositions and the
properties of some special families of numbers, thus bringing
into sharper focus the sympathies between our two disciplines.
The Romans' particular notion of their unique place in the universe
provided the point of reference for the design and construction
of the Pantheon in Rome. Gert Sperling
addresses this as well as the role of arithmetic, geometry, music
and astronomy--the Quadrivium--in Rome's most enduring monument.
The massive dome of the Pantheon presented an engineering problem
of no small measure. It wasn't equaled in size until the Renaissance.
Salvatore di Pasquale looks at what
Galileo learned from Alberti and Brunelleschi as he developed
what we now call the "theory of structures". Holger
Falter provides an overview of the role of mathematics in
the determination of structural form.
Alberti was as concerned with the sublime as with the practical.
Graziella Federici Vescovini discusses
the philosophical roots for his use of the special proportions
so essential to Renaissance architecture. While some of the proportions
used in the Renaissance were rational, others were "specially"
irrational. Vera W. De Spinadel explains
how the mathematical properties of the "Metallic Means"
make them such flexible design tools. But was the "Divinam
Proportionem" as commonly used as claimed? Marco
Frascari and Livio Volpi Ghirardini reveal the controversy
surrounding its supposed omnipresence. Henry
Crapo and Claude Le Conte de Poly Barbut bring to light the
properties of another special family of numbers, the equiangular
numbers. Can architects make use of this tool?
Paulus Gerdes reminds us that the application
of mathematics to art and architecture isn't found only in Western
architecture. He finds a source for architectural form in the
geometry of traditional African basket weaving. As straightforward
as basket weaving may appear, it often addresses such problems
as squaring the circle. Michelangelo was no stranger to such problems,
either, often giving to them his own special twist. Architect
Ben Nicholson has teamed up with
mathematician Jay Kappraff and architecture
graduate student Saori Hisano to
try to decipher the hidden pavement of the Laurentian Library.
Two-dimensional pattern design needed necessarily be symmetrical.
Michael Ostwald examines the use of
aperiodic Penrose tiling in Melbourne's Storey Hall.
As dedicated to maintaining mathematical rigor as to satisfying
the needs of his clients, Palladio designed the villas in which
we all dream of living. Stephen Wassell
takes us on a mathematical tour of "rustic" country
residences. Many of Palladio's clients were Venetian, who lived
in a city with a special relationship with mathematics.
Michele Emmer shows us "La Serenissima" in all her
geometrical splendor.
One outgrowth of the 1998 Nexus Conference was the decision to establish our new e-journal, the Nexus Network Journal. The NNJ will provide an ongoing means of communication between biennial conferences, and a venue for the publication of studies in architecture and mathematics.
I am grateful to the Accademia Nazionale Virgiliana and the Centro Leon Battista Alberti for making possible this year's meeting in Mantua. I also wish thank the Graham Foundation for Advanced Studies in the Fine Arts for having supported the publication of the 1996 Nexus publication, as well as for the grant awarded to Nexus '98 contributor Stephen R. Wassell. But our dialogue is not finished: we'll see you again at Nexus 2000 in Ferrara, Italy, 4-7 June 2000.