Positive charge is a type of electric charge of matter.

It's very interesting to learn about the history of the Shōkei era.

Hiragana is one of the characters in Japanese.

I am a believer in Orthodoxy.

This computer is using the latest technology.

There is a state-of-the-art electron microscope in my laboratory.

An electron neutrino is a type of elementary particle.

The digital song catalog for karaoke has been updated.

A positive-definite matrix is an important concept in linear algebra.

There are times when we perform calculations with the haversine in trigonometry.