THE PASSING SPHERE

The sphere made of materials that exist from the past

The spheres present information about the past as a kind of scavenger hunt or treasure hunt. The materials of the sphere come from the local site where many stories have taken place. In the centre of the sphere is an enclosed note that tells stories of the local past. It can be said that this is a sphere of the past.

video of Chenghan’s presentation
student:Chenghan Yuan
project:(con)temporary crust
year:2021
Location of inspiration:The Pulverweiden

Material:
Local sand and casein
Method of manufacturing:








The materials are mixed with water and casein and then poured into a silicone mould. When the material is completely dry, half of the sphere can be removed from the mould, then two halves are glued together with casein only, so that a complete sphere is ready.
Temporal aspect:







The spheres are found by visitors of the Pulverweiden and consciously or unconsciously broken open. The remains disappear in a few days due to the biological degradation of the casein.

full concept text

The spheres present information about the past as a kind of scavenger hunt or treasure hunt. The materials of the sphere come from the local site where many stories have taken place. In the centre of the sphere is an enclosed note that tells stories of the local past. It can be said that this is a sphere of the past.
The spheres can lie on the ground, on the lawn or anywhere where it is easy or difficult to find these spheres. Through the mesh-like holes in the surface of the ball, a note is visible inside. The text on it is not complete. So people have a strong motive to want to understand the whole thing and to look for more spheres. This characteristic can again be related to the place I have chosen. There is a small island surrounded by water and there is no bridge between it and the other side. Since you can’t reach the island, a layer of mystery seems to cover it. Visitors like to walk around it and sit opposite it to read. This mystery, together with the local materials and the note inside the spheres telling the story of the place, gives the visitor a stronger connection with the place.



To see the content of the note, the sphere has to be crushed as a shell, which fits perfectly with my theme of temporary structures. The purpose of the sphere is to be crushed, and one could say that the purpose is not to be preserved.
As the materials all come from the ground, it is very environmentally friendly, meaning the object can be crushed and simply thrown away. After a certain period of natural decomposition, these materials become again part of the soil from which they came. This is a great advantage. To be able to mould the soil material, I mixed it with casein and water. It took a very long time to dry completely. The material is dependent on weather, sunlight, air and other factors. This is the disadvantage, or at any rate a peculiarity, of this material.
The use of local soil materials is an interesting direction and is also cost effective, although there are some limitations in terms of material properties. There is still great potential for this material as well.