Definition of

Thunder

Noise

The noise linked to lightning is called thunder.

Thunder is the noise that is linked to lightning . Lightning, for its part, is intense sparks of electricity that are generated by a discharge between the clouds.

To know precisely the meaning of the term, it is necessary to determine its etymological origin. In this case we can say that it derives from the Latin tronitum which, in turn, came from the verb tonare . This can be translated as "thunder" or "rumble."

How thunder is produced

Lightning, when it occurs, increases the temperature of the air immediately; In this way, the air increases its volume. However, it soon mixes with the colder air around it and contracts again. The expansion and subsequent contraction causes shock waves that cause thunder.

For example: "My son always gets scared when there is thunder," "Poor Bobby! If he hears thunder, he hides under the table" , "I couldn't sleep last night because of the thunder" .

Storm

Lightning generates thunder by heating the air temperature.

Its study throughout history

Man has analyzed and studied thunder for thousands of years. Aristotle was one of the first thinkers to propose a theory in this regard: the Greek philosopher maintained that the noise was produced by the collision of clouds . Later it was thought that lightning generated a vacuum that then caused noise .

Today it is believed, as we already indicated, that thunder is caused by the shock wave caused by lightning when it suddenly heats the air. The sound caused by thunder is sometimes so loud that it approaches the pain threshold for people.

Through an equation it has been estimated that for every three seconds of delay between the lightning strike and the appearance of thunder, there is a kilometer of distance. Therefore, if we observe lightning and six seconds later we hear thunder, said lightning will have struck two kilometers away .

Captain Thunder

One of the best-known fictional characters in Spanish literature has the term in question in his name. We are referring to Captain Trueno , the protagonist of a comic series that was made by the screenwriter Víctor Mora and the artist Miguel Ambrosio and which is considered the most successful to date in the country.

In 1956 , this character appeared for the first time, a knight from the Middle Ages who traveled the world ready to help those who needed it most and defend those who were humiliated and outraged. Along with him, other characters appear who become his most sincere squires, such as his friends Crispin and Goliath , as well as his girlfriend Sigrid , the queen of the island of Thule .

This fictional creature has also been brought to the cinema under the title "Captain Thunder and the Holy Grail" . In 2011, the same one starring Sergio Peris Mencheta was released. The rest of the cast was made up of actors of the caliber of Adrián Lamana , Natasha Yarovenko and Manuel Martínez .