We all know we live in three-dimensional space. But what does it mean when people talk about four dimensions? Is it just a ...

Here’s what you’ll learn when you read this story: Theoretical physicists believe math shows the possibilities of a fourth dimension, but there’s no actual evidence—yet. Albert Einstein believed space ...

The fourth dimension isn’t something we can perceive, but it can still be an important tool for physicists. Scientists from the University of Missouri used a 4D “synthetic dimension” to develop a ...

As 3D printing continues to revolutionize manufacturing, researchers have decided that three dimensions are not enough, and so the concept of 4D printing has begun to emerge. These four-dimensional ...

Ever wondered what four dimensions really mean? Discover why knots can’t exist in 4D space — and how mathematicians use cubes and clever analogies to understand higher dimensions.