Relational diagram

<-Images projected on the floor: Geometrical images change according to dynamics from participants and GPS.

Images projected on the wall: All the dynamics that exist in the installation are visualized real-time->

A-1:
The location of YCAM where this installation space exists.

A-2
Changes in GPS: ID number and sensitivity (0-100dB) of each GPS that is in the sky above the installation site are indicated, and the moving direction of GPS is shown as the locus. (As the sensitivity turns stronger, light flashes brighter and the dynamics affecting the space becomes stronger, whereas lesser sensitivity causes slower, weaker flashes and gradual disappearance.)

B-1
Light/LED: Participant's dynamics is visualized through changes in brightness of horizontal lines generated by light set at the level of participant's eyes. (For instance, when dynamics at all positions is stable simultaneously, medium quantity of light is well balanced around the surroundings. When strong dynamics are pulling each other, a fast change in the quantity of light takes place in a wide area. The quantity of light is shown in strength, speed, and degree of the flashing light.)

B-2
Position of participant's dynamics. A white round light moves right and left to visualize the participant's position.

B-3
Change in the floor structure. Red lines move up and down (0-1,000) to visualize changes in floor.

B-4
The overall density of dynamics is indicated.

C-1
Reconstruction of geometrical images. Coordinate axis of GPS, participant's dynamics, speed and position are generated and modified real-time.

C-2
Sound: Spatial distortion and changes are expressed through multi-channeled sound positioning.

D-1
Scanning to measure space: Distortion in a space is measured at a regular speed.
A scan is shown to measure space as three-dimensional on a fixed timetable, to decide the direction (upward, downward, forward, backward, right or left) of the dynamics.

A: The position / GPS satellites as an observation point from the outside.

When it thinks about the theme of "gravity and resistance", it is important to be a position to observe and receive in this action.
We have only the observation point of the subjectivity.
We can't see outside from ourselves because we have only the observation point of the subjectivity. However, an objective observation point can be created by totaling many observation points.
We used GPS system for this work, and expanded the range of this installation.
GPS is the abbreviation of Global Positioning System, and it is the system known widely as to the car navigation, it detect the receivers position on the earth by using exclusive satellites.

fig.1 GPS satellites' and our distance is a very far observation point in the relations which the diagram shows.
A distance from three satellites is measured, and the error of the time is revised from one more satellite. Four and more satellite is necessary in the minimum to work. Multitude of GPS satellites always exist in our sky.　

fig.2 This is one result tested in the middle of the project.
A record showed the path which the GPS satellite observed in Tokyo half a day passed through and follow the track. A route isn't straight, and seems to be like deformed, because we who are observed on the ground are moving as well as the GPS satellite. Our place is dynamic, and defines relatively.

fig.3 GPS receiver was set on the roof top of YCAM above the installation space.

fig.4 The power of the GPS participates in the work as well as the participant of the gravity element from the outside of the earth. Between the range more than 60 degrees vertically, the GPS satellites come into the installation space.

B: The pulling powers against each other (=gravity)
/ the section line of dynamics in installation space by LED lights.



As for the gravity, the power which has mass by the universal gravitation is to pull it each other. This has been investigated since 17 century.
It is in proportion to the product of the mass in inverse proportion to the square of the distance from the viewpoint of approximation.
The earth is too big in our living space to the body, because of that; all faces toward to the core of the earth.

fig.5, 6 When a thing with more than one mass was arranged at random.

fig.7 It is visualized by the light of LED which the power to pull each other calls it "the section line of the light" to by this installation and the section line which sliced the size of the gravity and resistance power in 1 plane.

fig.8 When a participant is one person, it influences it due to that weight and the inclination.
fig.9 When participants are in more than one person, the power to pull each other has an influence in addition to the weight due to that movement.


C: Geometrical image / the medium of the space / geodesic line


A geometrical image as a sight element of the work visualizes the obstruction of the space and density. Relations between the geodesic line and the gravity are intimate.

fig.10 Geodesic line is the nearest distance in the space.
The surface of the earth which is our living space is a spherical. Even if it proceeds straight here, that path draws a circular arc. The space of this curve in the globular form and gravity influences that tune rate, distorted condition.

fig.11 When one mass is made to occur, deformation of lines occurs corresponding to that size. This is here in case of participants as well in case of a GPS satellite. A geometrical image changes with a flat due to the participant and the gravity of the GPS. Each of these lines is "geodesic line".
fig.12 Two different lines become the things of the straight line of each space.
fig.13 When it has the one and more element, the power to pull each other occurs in addition to the distortion by that own mass, and deform greatly.


D: Space scanning / measurement


The distortion of the space and the deformation are observed regularly, and space scanning is indicated. Physical matter and movement are necessary to measure it.


Though the geometrical image which shows the space swells in not only the side direction but also top and bottom, it is completely calculated three-dimensionally in the space of this work, and only one layer is indicated by the installation. The observer can't be recognized in that deformation space. When it thinks about the space relatively, it is shown that this work contains the item of the observation points.