He earned a doctorate in the field of applied science.

My father is an expert in urology.

We are planning to go to the science museum this weekend.

He is an expert in planetary science.

Humanities is an academic field that studies human culture and society.

He likes to take a walk in the park at dusk.

That theory is unscientific and has no evidence at all.

He is an expert in computer science.

The Ministry of Education is responsible for Japan's educational policy.

My father is an expert in otolaryngology.