Welsh Mathematician walks in Cyberspace

Welsh Mathematician

walks in Cyberspace

Alan Dix

Lancaster University,

vfridge and aQtive

http://www.hiraeth.com/alan

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understanding space

real spacemodel

14

model

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cyberspace

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understanding cyberspace

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sources

maps

myth &magic

mathematics

mazes

sources

cognition community

computationconstructedenvironment

Clay tablet map

2200 BC

Yorghan Tepe,Iraq

Egyptian garden

1400 BC

garden of a high court official of Amenhotep III

at Thebes

Wales

John Speed1610

drawings

cartographic (isomorphic)

cartographic (homomorphic)

schematic

linear

episodic

journeys

always linear

Kendal

Manchester Airport

Newark

San Francisco

labrynth

2D/3D

but is it realand is it natural

Euclid

Descartesx, y, z

Pythagorus

seeing in 3Dwhich is closer?

real is easywhich is closer?

2D navigation

Poincare property

walking vs. helicopter

tunnels and flyovers

manipulate in 3D

see in 2 1/2 D

navigate in 2D

properties of space

closeness and connectednessfixed orientation/centreflatinfiniteobjective

closenessmetric spaces

D(a,c) D(a,b)+D(b,c)a

bc

topology

neighbourhoodsopen and closed setslimits

nimbus, focus, etc. Benford et al.

awareness models

connectedness

graph theory

reformulated! Rodden

awareness

arcs and points

architecture

Hillier

space is the machine

symmetry

directedgraphs

one-way streets

hyperlinks symmetry

fixed centrefixed

orientation

T-O mapof the world

Isidore of Seville560-636 AD

Pietro Vesconte's World Maps, 1321,

from Marino Sanudo's Liber secretorum fidelium crusis

http://www.henry%2ddavis.com/MAPS/LMwebpages/LM1.html

mappa

mundi

HerefordCathederal

1300 AD

View of the World from 9th Avenue

Saul Steinberg 1975

Piagetcould you see B from A

BA

Donaldsoncan Ann see Bob

BobAnn

viewpoints

Bali - left/right/east/west

Polynesia - what moves

CVE ...

infinite space ...

finite, or cyclic

As o'er each continent and islandThe dawn leads on, another day,The voice of prayer is never silent,Nor dies the strain of praise away.

When we've been here ten thousand years,Bright shining as the sun,We've no less days to sing thy praisethan when we first begun.

Amazing graceJohn Newton (1725-1807)

The day thou gavest, Lord, is ended,The darkness falls at they behest;To thee our morning hymns ascended,Thy praise shall sanctify our rest.

The day thou gavest, Lord, is endedJohn Ellerton (1829-93)

The day thou gavest, Lord, is ended,The darkness falls at they behest;To thee our morning hymns ascended,Thy praise shall sanctify our rest.

We thank thee that thy church unsleeping,While earth rolls onwards into light,Through all the world her watch is keeping,And rests not now by day or night.

As o'er each continent and islandThe dawn leads on, another day,The voice of prayer is never silent,Nor dies the strain of praise away.

The sun that bids us rest is wakingOur brethren 'neath the western sky,And hour by hour fresh lips are makingThy wondrous doings heard on high.

So be it, Lord; thy throne shall never,Like earth's proud empires, pass away,Thy kingdom stands, and grows for ever,Till all they creatures own thy sway.

We thank thee that thy church unsleeping,While earth rolls onwards into light,Through all the world her watch is keeping,And rests not now by day or night.

The day thou gavest, Lord, is endedJohn Ellerton (1829-93)

The day thou gavest, Lord, is ended,The darkness falls at they behest;To thee our morning hymns ascended,Thy praise shall sanctify our rest.

We thank thee that thy church unsleeping,While earth rolls onwards into light,Through all the world her watch is keeping,And rests not now by day or night.

As o'er each continent and islandThe dawn leads on, another day,The voice of prayer is never silent,Nor dies the strain of praise away.

The sun that bids us rest is wakingOur brethren 'neath the western sky,And hour by hour fresh lips are makingThy wondrous doings heard on high.

So be it, Lord; thy throne shall never,Like earth's proud empires, pass away,Thy kingdom stands, and grows for ever,Till all they creatures own thy sway.

As o'er each continent and islandThe dawn leads on, another day,The voice of prayer is never silent,Nor dies the strain of praise away.

The day thou gavest, Lord, is endedJohn Ellerton (1829-93)

The day thou gavest, Lord, is ended,The darkness falls at they behest;To thee our morning hymns ascended,Thy praise shall sanctify our rest.

We thank thee that thy church unsleeping,While earth rolls onwards into light,Through all the world her watch is keeping,And rests not now by day or night.

As o'er each continent and islandThe dawn leads on, another day,The voice of prayer is never silent,Nor dies the strain of praise away.

The sun that bids us rest is wakingOur brethren 'neath the western sky,And hour by hour fresh lips are makingThy wondrous doings heard on high.

So be it, Lord; thy throne shall never,Like earth's proud empires, pass away,Thy kingdom stands, and grows for ever,Till all they creatures own thy sway.

flat spacebent

space

Temple of Bel-Shamharoth, Discworld

“The floor was a continuous mosaic of eight sided tiles.”

Terry Pratchett, The colour of magic

hyperbolic browser (inxight)

data mapped inhyperbolic space

hyperbolic spaceprojected into 2D

stiching together

? cyberspace

general relativity

local vs. global ...

curved space timedifferential geometrylocally euclidean patchessmoothly joined

shapes of

community

vfridgecollaborativelybuildingstructureinspace

close collaboration

parallel reality

coexistent worlds

portals and gateways

mabinogionubiquitous computing

in conclusi

onthere’s more to space than three dimensions