Anatase is a type of titanium oxide, characterized by the shape of its crystals.

Cone cells are the main visual receptors for recognizing colors.

The pyramidalis muscle is one of the muscles located in the human abdomen.

Let's calculate the inscribed circle of this polygon.

He is learning self-defense using nunchucks.

This trapezohedron has a very unusual shape.

The characteristic of annelids is that their bodies are divided into ring-shaped segments.

This butterfly valve is used to control the flow of fluid.

He explained in detail about the structure of the sphenoid bone.

He drew a straight line using a T-square.