As well as using the rover's X-ray spectrometer on Whitewater Lake and Kirkwood to determine the chemical elements present, and thus get a better idea of their mineralogical composition, the team needs to work out the order and position of the rock layers to tell them something of their relative ages.

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First, compositing supervisor Marshall Krasser reminds us that in order to truly convey the number of layers in each of these shots, these slide shows would have to be ten times longer and far more detailed.

FORBES

He explained to me that his central realization was that he had to control the relationships between the different layers of the application stack in order to make sure that it could reliably deliver smooth movement.

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Aloko also added several layers of authorization that prosecutors must secure in order to carry out searches, open investigations, and prepare indictments.

NEWYORKER: The Afghan Bank Heist

At the moment, memory chips are made by laying down strata of different chemicals on a silicon base, and then carving canyons through the layers in order to separate the individual components.

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