science

MacLennan v MacLennan

MacLennan v MacLennan is a science 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 MacLennan v MacLennan rather than just read about it. In short: MacLennan v MacLennan 1958 SC 105 is a Scots a family law decision that ruled that artificial insemination does not constitute adultery for the purposes of divorce. The MacLennans were married in August 1952.

Key takeaways

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

Reference excerpt

MacLennan v MacLennan 1958 SC 105 is a Scots a family law decision that ruled that artificial insemination does not constitute adultery for the purposes of divorce. The MacLennans were married in August 1952. However, the couple separated shortly afterwards, and Mrs MacLennan moved to the United States. In July 1955, she had a baby girl. Mr MacLennan sued for divorce on the grounds of adultery. Mrs MacLennan claimed that she had conceived the child through artificial insemination and that she had not committed adultery. The Outer House of the Court of Session had to decide if artificial insemination could constitute adultery. This is where the definition taken from Lord Wheatley's comments that adultery had to involve "physical contact with an alien and unlawful organ". The court lays down specific rules for adultery: 1- In adultery there must be two parties, physically present and engaging in sexual act. 2- It is not necessary that there is any interaction between the sperm and the ovum. The court ruled artificial insemination does not constitute adultery. However, Mrs MacLennan could not provide the court with any proof of her taking artificial insemination. Mr MacLennan therefore got his divorce.

References

Worked examples

Example 1 — a first encounter with MacLennan v MacLennan

Start with the simplest possible case. Write down what MacLennan v MacLennan claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 MacLennan v MacLennan 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 MacLennan v MacLennan 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 MacLennan v MacLennan

In research: MacLennan v MacLennan appears in science 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 MacLennan v MacLennan 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: MacLennan v MacLennan is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1958 in British law, 1958 in Scotland, 1958 in case law, so understanding it makes those chapters shorter.
In everyday life: Look for MacLennan v MacLennan 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “MacLennan v MacLennan” →

Affiliate

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

How to study MacLennan v MacLennan in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what MacLennan v MacLennan 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 MacLennan v MacLennan out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is MacLennan v MacLennan in simple terms?

Why does MacLennan v MacLennan matter?

Because it connects several science 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 MacLennan v MacLennan?

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 MacLennan v MacLennan.