Euclidean space is one of the basic concepts in mathematics.

Euclidean geometry is a branch of mathematics that studies the shapes of planes and spaces.

He is working in the field of science.

The shape of this object is very unique.

This plane is perfectly horizontal.

Euclidean geometry forms the foundation of geometry.

I love mathematics.

He is conducting research on a new energy source.

He is researching about a new energy source.

In physics, time and space are closely related.