The researchers at Imperial say it can be more effective because is has a different, spiral shape.

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The project was given its name because of the spiral shape it would form from Langlees to Laurieston and Polmont.

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As a microplate rotates, it accumulates material at its edges, forming a spiral-like shape.

ECONOMIST: Geophysics

The result was to convert the surface of a glass plate into the shape of a spiral staircase with 16 steps.

ECONOMIST: A way to detect Earth-sized planets around other stars