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These pentagonal pads are powered by small generators, and produce a local zero-gravity field. They emit a blue glow while in use.

Tau Volantis Expedition[]

They were deployed by the S.C.A.F expedition to Tau Volantis in numerous supply silos and archeological dig sites, presumably to allow researchers to study objects in hard-to-reach places. These hard-to-reach places existed because Tau Volantis was once an ocean world, with the result that, being submerged in water, the inhabitants could swim upward to reach those places and did not have stairs or ladders to access those locations. 

Events of Dead Space 3[]

Isaac Clarke traverses through silos built by the S.C.A.F, and regions under research by the S.C.A.F, encountering these generators in the process.