Engineers have found a way to shepherd microrobots with no wires, no radios, and no onboard computers. Instead, they steer them with light patterns designed using the same math physicists use to ...

Optics meets 2D materials: a simple probe light beam exiting an optical moiré lattice can be chopped up into diffuse streaks or confined into a single bright spot, depending on the twist angle in the ...

ChromoUpdate is a 'programmable matter' technique to quickly change objects' color. The method uses light to alter the saturation of photochromatic ink on an item's surface and could give product ...