(testo tratto da http://www.iamas.ac.jp/interaction/i97/artist_Krueger.html)
We all know that the earth is round and that anyone who ever thought otherwise was ignorant. But in fact, we have no first-hand experience that tells us that this is true. We simply take the scientists' word for it.
To make being on a sphere palpable, this environment shrinks the world to a scale that can be circumnavigated very quickly. Participants stand in front of a large projection screen depicting a realistic three-dimensional terrain. The projection screen is a portal into that world. Participants are able to move through that terrain by pretending to fly exactly as a child would by holding their hands out from their sides and leaning in the direction they want to go. In addition, they can control their altitude by raising or lowering their hands. When they lower their hands, they descend to the surface. When they raise their hands, they ascend-up to the level of the mountain tops. If they keep their hands elevated, they soar up into space and see for the first time that the terrain that they were exploring is really the surface of a planet.
Flying around this world is very satisfying by itself, because the means of navigation is so intuitive. Since this is a planet, if participants continue flying in one direction long enough, they will come back to the place they started from. We have constructed the world to make it interesting to explore. At times, participants will see a spherical object with a cape trailing behind it flying near them. The sphere is controlled by another participant in another identical installation.