science

Lock Martin

Lock Martin 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 Lock Martin rather than just read about it. In short: Joseph Lockard "Lock" Martin Jr. (October 12, 1916 – January 19, 1959) was an American performer afflicted with gigantism.

Key takeaways

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

Reference excerpt

Joseph Lockard "Lock" Martin Jr. (October 12, 1916 – January 19, 1959) was an American performer afflicted with gigantism. Martin and a twin brother were born in South Philadelphia, Pennsylvania; his brother died in childbirth. Martin grew to over seven feet tall, though his exact height was reported inconsistently. He became notable for appearing as the robot Gort in The Day the Earth Stood Still (1951). Despite his size, he had difficulty moving in the heavy robot suit, and during scenes in which he was supposed to lift and carry either Patricia Neal or Michael Rennie, they were either held up by wires, or replaced with lightweight dummies. Martin traveled with Spike Jones and His City Slickers and appeared on their television show in the early 1950s. He also worked as a doorman at Grauman's Chinese Theatre in Los Angeles. He can also be heard as a contestant on the November 14, 1951 edition of You Bet Your Life. Towards the end of his career, he was filmed for a part in The Incredible Shrinking Man as a circus giant, but his scenes were deleted.

Filmography Lost in a Harem (1944) – Bobo (as J. Lockard Martin) Anchors Aweigh (1945) – Giant Lady on a Train (1945) – Circus Club Doorman The Day the Earth Stood Still (1951) – Gort Four Star Revue (1952, TV Series) – Giant at Hollywood Bowl Million Dollar Mermaid (1952) – Giant Off Limits (1953) – Big Sailor Invaders from Mars (1953) – Mutant carrying David to "Intelligence" The Snow Creature (1954) – Yeti The Incredible Shrinking Man (1957) – Giant (scenes deleted)

References

External links Lock Martin at IMDb Lock Martin at Find a Grave

Illustrations

Worked examples

Example 1 — a first encounter with Lock Martin

Start with the simplest possible case. Write down what Lock Martin 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 Lock Martin 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 Lock Martin 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 Lock Martin

In research: Lock Martin 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 Lock Martin 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: Lock Martin is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1916 births, 1959 deaths, 20th-century American male actors, so understanding it makes those chapters shorter.
In everyday life: Look for Lock Martin 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.

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How to study Lock Martin in 20 minutes

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

Frequently asked questions

What is Lock Martin in simple terms?

Joseph Lockard "Lock" Martin Jr. (October 12, 1916 – January 19, 1959) was an American performer afflicted with gigantism.

Why does Lock Martin 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 Lock Martin?

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 Lock Martin.