Demography is an important tool for understanding various aspects of society.

Bose-Einstein statistics is one of the important concepts in quantum mechanics.

Fermi-Dirac statistics is a theory that combines quantum mechanics and statistical mechanics.

He is good at solving technical problems.

He always has an optimistic attitude.

His music is very avant-garde, and some people might not understand it.

He is facing economic problems.

This word is etymologically derived from Latin.

Looking at this kanji graphically etymologically, its shape represents its meaning.

Japanese history had a feudal social structure for a long time.