St. Elmo's fire is a phenomenon of electrical discharge that appears on things like ship masts and airplane wings.

He suddenly appeared in front of me.

In winter, static electricity often occurs.

I am going to Tokyo by airplane tomorrow.

Lightning is one of the electrical discharge phenomena in the atmosphere.

When lightning discharges electricity into the air, we observe it as a flash of lightning.

He was repairing the mast of the ship.

There are several skills that are required for this project.

This is absolutely a must-have item.

This phenomenon remains unexplained for scientists.