In May I was in Edinburgh to compete in the Edinburgh marathon. On the day after the marathon I did a sight-seeing tour of Edinburgh. One of the things I saw was a statue to the Scottish mathematical physicist James Clerk Maxwell. The statue is at the Saint Andrew Square end of George Street, abut 300 metres from the famous Princes Street.
James Clerk Maxwell(1831-1879).
The statue of James Clerk Maxwell, which is at the Saint Andrew Square end of George Street.
James Clerk Maxwell was an important physicist and mathematician. His most prominent achievement was to formulate the equations of classical electromagnetic theory. These four equations are known as Maxwell’s equations. They are shown on a small plaque at the rear of the statue’s plinth.
The rear of the statue’s plinth. The larger plaque is illustrated in the bottom photograph. Below this is a small plaque with Maxwell’s four famous equations of electromagnetism.
Maxwell’s four equations, which I have written out below.
These equations are written in differential form, where the symbol 
The four equations can also be written in integral form, which many people find easier to understand. In integral form, the equations become
- Equation (1) (and its integral form, equation (5) ) is usually referred to as Gauss’s law.
- Equation (2) (and its integral form, equation (6) ) is usually referred to as Gauss’s law for magnetism.
- Equation (3) (and its integral form, equation (7) ) is usually referred to as Faraday’s law of induction.
- Equation (4) (and its integral form, equation (8) ) is usually referred to as Ampère’s circuital law.
The inscription on the front of the statue’s plinth. It reads “James Clerk Maxwell 1831-1879”.
The larger plaque on the back of the plinth.
