The two-faced material is technically two-dimensional, but like molybdenum diselenide it consists of three stacked layers of atoms arranged in a grid.

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Let’s just hope DICE has played Mirror’s Edge 2D. I saw this image far too often when playing Mirror's Edge. The original Mirror’s Edge was at times a thrilling experience.

In this paper, we introduce a novel, explicit, wide-stencil, two-dimensional (2D) tree–grid method for solving stochastic control problems (SCPs) with two space dimensions and one time dimension, or, ...