Learn how to visualize four-dimensional shapes, and see a massive, real-life “hypercube”: http://curiosity.im/4DimensionalShapes | Curiosity

A tesseract is a four-dimensional geometric shape, often referred to as a “4D hypercube.” While we are familiar with 2D shapes (like squares) and 3D shapes (like cubes), a tesseract exists in a dimension beyond the three we can perceive. It is to a cube what a cube is to a square. A tesseract has 16 vertices, 32 edges, 24 square faces, and 8 cubic cells. It’s a mind-bending shape that challenges our understanding of space, and it’s often used in science fiction and theoretical physics to explore