I am majoring in developmental biology at university.

Biotechnology is a science that understands the mechanisms of life and utilizes them.

He is an expert in nuclear physics.

My brother is a famous biologist.

He is interested in paleozoology.

Ri is wearing black clothes.

He is traveling around the world in search of the elixir of life.

This old radio uses a cold-cathode tube.

I have been to Salt Lake City.

A cooling device utilizing the principle of radiative cooling has been developed.