The event horizon is a part of a black hole, referring to the region from which even light cannot escape.

This box is perfectly square in shape.

This square box is very simple and beautiful.

I saw a cackling goose in the park.

She has mastered the technique of facesitting.

Sakuramenzuhira represents the beautiful nature of Japan.

He made a model of a dodecahedron.

This regular tetrahedron is composed of equilateral triangles on all sides.

On top of losing his job, it never rains but it pours, he was also dumped by his girlfriend.

This is a model of a great icosahemidodecahedron.