Jean-Baptiste Biot

This landmark experiment is known as Ørsted's experiment.

Jean-Baptiste Biot and Félix Savart, both of whom in 1820 came up with the Biot-Savart law, giving an equation for the magnetic field from a current-carrying wire.

Around the same time, André-Marie Ampère carried out numerous systematic experiments and discovered that the magnetic force between two DC current loops of any shape is equal to the sum of the individual forces that each current element of one circuit exerts on each current element of the other circuit.

In 1831, Michael Faraday discovered that a time-varying magnetic flux induces a voltage through a wire loop.

So no one was hurt, but the villagers went and collected the pieces immediately.

The French government sent 29-year-old physicist Jean-Baptiste Biot to investigate.

He went to the local quarries.

to analyze the rocks there.