Why does a mirror only reverse things in the horizontal dimension?

The height of the layer is small compared to the horizontal dimension.

The horizontal dimensions of the building can be derived from the ground plan.

The horizontal dimension of the image is produced by moving either the truck or the scanning hardware.

In a horizontal dimension, discussion would be open to all possible answers from students in response to the questions.

The table gives results for wave propagation in one horizontal spatial dimension.

There is an intricate relationship between the horizontal and vertical dimensions of the project: each mirrors without repeating the other.

As they prefer to stay close to the ground, the horizontal dimensions of their habit are more important than its height.

The horizontal dimensions of the Sabil room are 4.0 x 3.5 meters.

Sustainable development is the horizontal dimension of all EU policy.