The Unstationary Scaffold seen in test chamber 07.
The Aperture Science Unstationary Scaffold is a testing element featured in several Test Chambers of the Aperture Science Enrichment Center.
Description[]
Moving along a blue ray similar to the one moving the elevators linking the Test Chambers, this moving platform is often used to go across toxic waste located below. It can be activated by sending an Aperture Science High Energy Pellet in its catcher, or putting a Weighted Storage Cube on a Super Button. Before the Aperture Science Unstationary Scaffold starts moving, a mechanism lowers the platform towards the blue beam.