Untitled, 1991

Glass discs, diam. 220 cm., steel and three 650 Watt spotlights two of which are programmed to switch on and off, the third one is permanently switched on.

Photo: Bent Ryberg

Light-Figure, 1991, (part 1)

This part of the installation was mainly done in order to visualize radio waves from the Sun by digital technology and numerical relationships seen as conceptual relationships. When radio waves, white noise, are picked up by an antenna, they are transformed by a computer in order to be simul-taneously visualized as a large video projection.

The right part of the video projection is a large square divided into 4x4 smaller squares each of which is given a numerical value of the magic square in Dürers print Melancholia. The intensity of the colours is determined by the intensity of the radio influx. The computer is thus choosing an arbitrary colour among 250,000 colours. After the run of the program another program is run transforming the influx into greytones only.

The left part of the video projection visualize the "history" of the sunspot activities as they have been recorded the last 300 years; the visualization was done in two ways. One was a yellow disc changing its radius thus demonstrating the sunspot activity by being smaller or larger. The second visualization was made by a system of concentric circles expanding from the center, each circle representing one year. The intensity of each circle was representing the sunspot activity of that particular year. After 300 steps, each step is 1/2 second, one of the two forms is replaced by the other.

(The assistance of the astrophysicist Ib Lundgaard Rasmussen from the Danish Space Research Institute was indispensable in the making of this part of Light-Figure).

Photo: Bent Ryberg.

Light-Figure, 1991, (part 2)

Eight 1000 Watt lamps suspended from a wooden structure, painted grey, 4,5x8x5 metres. The eight lamps are programmed to switch on and off according to prescribed intervals referring to various extensions in space and time using certain numerical relationships.The eight programs run parallel, and when they have finished there is a pause of nine minutes. During this pause a 650 Watt spotlight is lit and together with two other 650 Watt spotlights the three light sources primarily make the work.

Photo: Bent Ryberg

 

Northern Lights, 1992

Northern lights occur between 60 and 120 miles above the surface of the Earth, caused by high-speed electrons colliding with air molocules composed of oxygen and nitrogen. The stongly bound electrons of the atoms, excited to a higher energy-level by the high-speed electrons, emit light when they return to a lower energy-level.

This artistic and scientific experiment was done thanks to the assistance of Prof. Eigil Ungstrup and Dr. Inger Marie Ungstrup and the Institute of Geophysics, The University of Copenhagen.

Craggs Projections, 1992

Four light projections, each 2500 Watt, xenon. The cross to the left makes a full rotation each minute. (Lux Europae, Edinburg. Foto: Murdo MacLeod).

Inter Actor 3, 1993

Cf. Tranmitter, 1989, Inter Actor 1, 1989 and Inter Actor 2, 1990.

1994/95

Neon, glass plate and an electronically controlled spotlight. (Hansehalle Lübeck).

Photo: Bent Ryberg

Transistor, 1994/95

Neonwork on a 54 metres long facade.The neon tubes are fixed to a relief of stainless steel.

The work is switched on day and night; parts of the work are either controlled by a barometer, a program to shows the right time, a section is controlled by a computer and a certain part is permanently switched on.

(Sorø Power Station, DK).

Photo: Bent Ryberg

Greenhouse, 1994/95

Stainless steel, glass, neon tubes permanently switched on and a 650 Watt spotlight permanently switched on.

Foto: Bent Ryberg

Neon, 1995

Photo: Bent Ryberg

Modes, l995/96

Three conic structures made of stainless steel height ca. 600 cm., and two elements made of brass,

five 1000 Watts incandescent bulbs, glass plate and neon tube, on the wall/s five geometric light projections, each 1000 Watts halogen spotlights.Three of the incandescent lamps are connnected to

a Geiger counter. The Geiger counter registers the background radiation, and having registered a

certain amount of particles three of the incandescent bulbs are switched on and off according to a prescribed program. When the program is finished the same amount of particles are registred and the program is then repeated. The five large light projections on the wall/s are switched on and off according to a prescribed program, duration ca. 60 min., and the program is then repeated.

Photo: Bent Ryberg.

Now - The Polar Space, 1996

10 large videoprojections showing scientific data from the Artic area.

Metereological data from Greenland, two years.


Actual metereological data from Greenland, transmitted by the internet..


Visualization of ozon-data from Greeland, one year.


Ozon-data from Denmark and NASA.

The Clock, 1998

Sculptural project consisting of a square with three sections; stainles steel, sandstone, water and neon tubes connected to electronics.

Beside the obvious sculptural aspects the work is intended to demonstrate the close relation between light and time. The work is placed on a North-South axis, and one section of the work can function as a sun dial. The neon tubes in the large cubic section are programmed to show the change of time every full hour as a satellite signal is recieved from the socalled atomic cloc in Frankfurt. The green neon tube which is permanently switched on, is positionend in an angle of 55,5 degrees which means that it points towards the Polar Star. The position will change with 1,3969712 degree per century which means that a full circle takes 25 770 years.

(The music conservatory Esbjerg, DK).