Join our daily and weekly newsletters for the latest updates and exclusive content on industry-leading AI coverage. Learn More What’s the easiest way to teach a robot arm to stack blocks? That’s the ...

(via PBS Infinite Series) Imagine you have four cubes, whose faces are colored red, blue, yellow, and green. Can you stack these cubes so that each color appears exactly once on each of the four sides ...

These sleek maple cubes are just the right size for a small condominium. Stack them like a snowman or use them as nesting tables. A set of three sells for $99 at Davani's Home Furnishings & More, 3642 ...