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astronomy

Leonard McCoy

Leonard McCoy is a astronomy 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 Leonard McCoy rather than just read about it. In short: Dr. Leonard H.

Leonard McCoy — main illustration
Leonard McCoy — illustration

Key takeaways

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

Reference excerpt

Dr. Leonard H. McCoy, known as "Bones", is a character in the American science-fiction franchise Star Trek. McCoy was played by actor DeForest Kelley in the original Star Trek series from 1966 to 1969, and he also appears in the animated Star Trek series, in six Star Trek films, in the pilot episode of Star Trek: The Next Generation, and in numerous books, comics, and video games. A decade after Kelley's death, Karl Urban assumed the role of McCoy in the Star Trek reboot film in 2009. Thomas Jane will portray McCoy in the 5th season of Star Trek: Strange New Worlds.

Depiction McCoy was born in Carrollton, Georgia, in 2227. The son of David McCoy, he attended the University of Mississippi and is a divorcé. McCoy later married Natira, the priestess of Yonada, as recounted in the episode "For the World Is Hollow and I Have Touched the Sky". In 2266, McCoy was posted as chief medical officer of the USS Enterprise under Captain James T. Kirk, who often calls him "Bones". McCoy and Kirk are good friends, even "brotherly". The passionate, sometimes cantankerous McCoy frequently argues with Kirk's other confidant, science officer Spock, and occasionally is annoyed by Spock's Vulcan heritage. McCoy often plays the role of Kirk's conscience, offering a counterpoint to Spock's logic. McCoy is suspicious of technology, especially the transporter. As a physician, he prefers less intrusive treatment and believes in the body's innate recuperative powers. The nickname "Bones" – chosen before the character was named – is a play on sawbones, a 19th century epithet for a surgeon. In the 2009 Star Trek film reboot, when McCoy first meets Kirk, he complains that his ex-wife took all their shared assets following their divorce: "All I got left is my bones", implying this was the origin of the nickname. When Kirk orders McCoy's commission reactivated in Star Trek: The Motion Picture (1979); a resentful McCoy complains of being "drafted". Spock transfers his katra—his knowledge and experience—into McCoy before dying in Star Trek II: The Wrath of Khan (1982). This causes mental anguish for McCoy, who in Star Trek III: The Search for Spock (1984) helps restore Spock's katra to his reanimated body. McCoy continues to serve on Kirk's crew aboard the captured Klingon ship in Star Trek IV: The Voyage Home (1986). In Star Trek V: The Final Frontier (1989), McCoy (through the intervention of Spock's half-brother Sybok) reveals that he had performed elective euthanasia on his terminally ill father to relieve him of severe pain. Shortly afterward, a cure was found for his father's disease, and McCoy had carried the guilt about it with him until Sybok's intervention. In Star Trek VI: The Undiscovered Country (1991), McCoy and Kirk escape from a Klingon prison world, and the Enterprise crew stops a plot to prevent peace between the United Federation of Planets and the Klingon Empire. Kelley reprised the role for the "Encounter at Farpoint" pilot episode of Star Trek: The Next Generation (1987), insisting upon no more than the minimum Screen Actors Guild payment for his appearance. McCoy had attained the rank of admiral in the Trek timeline when this episode was aired, and he is stated to be 137 years of age. He went on to become chief of Starfleet Medical, with a special rank known as branch admiral. The fictional book Comparative Alien Physiology was written by McCoy, and was required reading at the Starfleet Medical Academy through the 2370s. In the 1973 Star Trek: The Animated Series episode "The Survivor", McCoy mentions he has a daughter, Joanna. Although Chekov's friend Irina in the original series episode "The Way to Eden" was originally written as McCoy's daughter, it was changed before the episode was shot.

Reboot film series

In the 2009 Star Trek film, which takes place in an alternate, parallel reality, McCoy and Kirk become friends at Starfleet Academy, which McCoy joins after a divorce that he says, "left [him] nothing but [his] bones." This line, improvised by Urban, explains how McCoy earned the nickname Bones. McCoy later helps get Kirk posted aboard the USS Enterprise. He later becomes the chief medical officer after Doctor Puri is killed during an attack by Nero. McCoy remains aboard to see the Enterprise defeat Nero and his crew, with Kirk becoming the commanding officer of the ship. The Guardian called Urban's portrayal of McCoy in the 2009 film an "unqualified success", and The New York Times called the character "wild-eyed and funny". Slate said Urban came closer than the other actors to impersonating a character's original depiction.

… excerpt ends here. Continue reading the full article.

Illustrations

Leonard McCoy illustration
Leonard McCoy: Karl Urban as McCoy in Star Trek (2009)
Karl Urban as McCoy in Star Trek (2009)

Worked examples

Example 1 — a first encounter with Leonard McCoy

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

In research
Leonard McCoy appears in astronomy 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 Leonard McCoy 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
Leonard McCoy is common in secondary-school and first-year university syllabi. It links to neighbouring topics Fictional characters from Atlanta, Fictional characters from the 23rd century, Fictional medical doctors, so understanding it makes those chapters shorter.
In everyday life
Look for Leonard McCoy 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 Leonard McCoy in 20 minutes

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

Frequently asked questions

What is Leonard McCoy in simple terms?

Dr. Leonard H.

Why does Leonard McCoy matter?

Because it connects several astronomy 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 Leonard McCoy?

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 Leonard McCoy.

Tags

  • Fictional characters from Atlanta
  • Fictional characters from the 23rd century
  • Fictional medical doctors
  • Fictional scientists
  • Fictional surgeons
  • Star Trek: Phase II characters
  • Star Trek: The Animated Series characters
  • Star Trek: The Next Generation characters
  • Star Trek: The Original Series characters
  • Star Trek (film franchise) characters
  • Starfleet admirals
  • Starfleet commanders

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