He is playing games using stolen electricity.

We conducted an experiment on electrolysis in chemistry class.

The chemist electrolyzed water to produce hydrogen and oxygen.

Mr. Tono is my best friend.

Denma is a city in America, known as Denver in Japan.

Every year, a large-scale ekiden is held in this area.

Nitrogen makes up about 78% of the Earth's atmosphere.

Electromagnetic waves are a broad form of energy that includes light and radio waves.

This electrical machinery is very high performance.

The intensity of the electric field is proportional to the amount of charge.