The concept of dimensions goes far beyond the three spatial ones we experience daily. Physicists theorize a hidden fifth dimension that could connect the universe’s fundamental forces in ways we ...

One of my favorite books as a child was called Flatland: A Romance of Many Dimensions. Written by a grade-school teacher in 1884, it’s a novel narrated by a square who lives in a two-dimensional world ...

Theoretical physicist Sean Carroll, PhD, is challenged to explain the concept of dimensions to 5 different people; a child, a teen, a college student, a grad student, and an expert.