Michael Faraday - The Man Behind the Faraday Cage

In this post, we will tell the story of the British scientist Michael Faraday - the man whose name stands behind the well-known Faraday cage, a principle used today for protection against electromagnetic fields (EMF).

Faraday’s story is an example of how curiosity and perseverance can lead to discoveries that change the world.

Early Years and Humble Beginnings

Michael Faraday was born on 22 September 1791 in a small village in what is now London called Newington Butts.

His father was a blacksmith, a job that could not provide a comfortable standard of living for the family. They lived in poverty and often experienced hardship and hunger. Michael received only a basic education, where he learned to read and write. At the age of 14, he began an apprenticeship as a bookbinder. He did not just bind books - he read them and educated himself. Inspired by the scientific books he encountered, he began conducting experiments described in them. Without formal scientific training, Faraday even built an electrostatic generator using wood and old bottles.

Meeting Humphry Davy

In 1810, at the age of 19, Faraday began attending public lectures by various scientists. The one who impressed him most was the English chemist Humphry Davy.

To attract Davy’s attention, Faraday did something unusual. He collected his detailed notes from the lectures, bound them into a 200-page book, and sent it to Davy along with a request to work for him.

His effort did not go unnoticed.

In 1813, Michael Faraday became Davy’s assistant and laboratory technician at the Royal Institution of Great Britain.

This marked the beginning of his scientific career.

Discoveries in Electromagnetism

In 1821, Faraday published an accessible explanation of electromagnetism. He explained that:

Magnets can convert electricity into mechanical energy.

In 1831, he made one of his most important discoveries - electromagnetic induction. He also created the first electric motor.

Faraday demonstrated that:

When a magnet passes through a coil of wire, it can generate electricity.

This discovery forms the basis of many technologies we use today, including:

• electric generators
• transformers
• wireless phone charging
• induction cooktops
• electric motors

The Discovery of the Faraday Cage

In 1836, Michael Faraday demonstrated the principle of the Faraday cage.

It is a structure made of conductive material that blocks external electric and electromagnetic fields by distributing electrical charge across its surface.

Today this principle is used in many areas, including:

• protection of electronic equipment
• laboratories and scientific experiments
• protection from electromagnetic interference
• EMF protection technologies

Modesty and Principles

Despite his enormous contribution to science, Faraday remained an extremely modest and principled person.

The physicist Albert Einstein kept Faraday’s portrait in his office alongside those of Isaac Newton and James Clerk Maxwell.

Faraday:

• twice refused the position of President of the Royal Institution
• declined a knighthood
• refused to work on the development of chemical weapons for the government

Final Years and Legacy

In 1855, due to health problems, Michael Faraday ended his active scientific work.

He died in 1867, leaving behind discoveries that form the foundation of modern electrical engineering and electronics.

His life remains an inspiring example that one’s origins do not determine one’s future. With curiosity, hard work and perseverance, remarkable achievements are possible.