During an earthquake, the longitudinal waves arrive first.

In physics, a wave packet refers to a collection of waves.

The study of gravitational waves contributes greatly to our understanding of the universe.

I heat up the meal using a microwave.

The spy revealed the secret.

I am interested in ancient Persian culture.

I am interested in ancient Persian culture.

My grandfather showed me the location of Persia on an old map.

Namiko is my best friend.

The tidal wave is hitting the shore.