I heard the beautiful voice of a songbird in the park.

The syrinx of birds can produce different sounds depending on the species.

Have you ever seen a trumpeter swan at the lake in the park?

Mizunari is my best friend.

Mercury(II) fulminate is a very sensitive explosive and needs to be handled properly.

In organic chemistry, fulminic acid is produced from carbon monoxide and ammonia.

The battleship sank due to a torpedo attack.

This building is equipped with lightning protection, so there is no need to worry about being struck by lightning.

He avoided standing under the tree to avoid striking lightning.

This mural is painted with a traditional Chinese S-shaped geometric pattern, known as a thunder pattern.