physics

Samuel Milner

Samuel Milner is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Samuel Milner rather than just read about it. In short: Samuel Roslington Milner FRS (22 August 1875 – 12 August 1958) (known as 'Ross') was a British physicist, who worked in plasma physics, studying the electrical conductivity of electrolytes. He is best known for the Debye-Milner Plasma Theory.

Key takeaways

Samuel Milner belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Samuel Milner to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Samuel Milner from memory before moving on to harder problems.

Reference excerpt

Samuel Roslington Milner FRS (22 August 1875 – 12 August 1958) (known as 'Ross') was a British physicist, who worked in plasma physics, studying the electrical conductivity of electrolytes. He is best known for the Debye-Milner Plasma Theory.

Personal life and education Milner was born in Dodsworth, a village near Barnsley, Yorkshire. His father, Samuel Wilkinson Milner, was an agent, or ‘factor’ for the collieries in the district and his mother was Ann Roslington. The Milners had four daughters followed by their only son. When Milner was still young the family moved to Retford, Nottinghamshire. Milner was educated at King Edward VI School. He won the Headmaster's Prize of a microscope, but he quickly moved to studying physics. Milner later attended University College, Bristol where he met his wife Winifred Esther Walker in 1894 as Physics students. They were both active student leaders and helped open the College's Social and Debating Society to both sexes. In 1894–95 Winifred served as Vice-President and Ross as a committee member. By the next year, he was President and she his Vice-President. Milner and Walker both held 1851 Exhibition Scholarships (established by Queen Victoria to support science). Walker graduated in 1898. Milner went on to study for his DSc at the University of Göttingen with Walther Nernst who went on to win a Nobel Prize for Chemistry. In 1952, Milner emigrated with his wife to Sydney, Australia to join their son, Christopher J Milner (1912–1998), who had taken up the position of Chair of Applied Physics at the University of New South Wales.

Career Milner worked in plasma physics, studying the electrical conductivity of electrolytes. He developed a mathematical formula for the interionic forces between dissolved ions and solvent. He is best known for the Debye-Milner Plasma Theory. Milner's plasma theory (1912) was used by Debye and Huckel (1923) in developing their theory of electrolytes. Milner's records and papers (1944–64) are held in the National Archives. He was a lecturer at the University of Manchester and later at University of Sheffield from 1917 until his retirement in 1940. He was elected to be a Fellow of the Royal Society (FRS) in 1922.

1851 Exhibition Scholar, 1895–1898 Demonstrator of Physics, University of Manchester, 1898 Lecturer in Physics, 1900, Acting Professor, 1917, Professor of Physics, 1921–1940, then Emeritus Professor, University of Sheffield Assistant Radiographer, 3rd Northern General Hospital, 1914–1917

References

Worked examples

Example 1 — a first encounter with Samuel Milner

Start with the simplest possible case. Write down what Samuel Milner claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Samuel Milner before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Samuel Milner ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Samuel Milner

In research: Samuel Milner appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Samuel Milner in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Samuel Milner is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1875 births, 1958 deaths, Academics of the University of Sheffield, so understanding it makes those chapters shorter.
In everyday life: Look for Samuel Milner outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Samuel Milner in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Samuel Milner means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Samuel Milner out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Samuel Milner in simple terms?

Why does Samuel Milner matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Samuel Milner?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Samuel Milner.