physics

Operations Order No. 35

Operations Order No. 35 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 Operations Order No. 35 rather than just read about it. In short: Operations Order No. 35 was an order issued by the 509th Composite Group on August 5, 1945 for the atomic bombing mission on Hiroshima, Japan, during World War II. The Order was signed by Operations Officer Major James I.

Key takeaways

Operations Order No. 35 belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Operations Order No. 35 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Operations Order No. 35 from memory before moving on to harder problems.

Reference excerpt

Operations Order No. 35 was an order issued by the 509th Composite Group on August 5, 1945 for the atomic bombing mission on Hiroshima, Japan, during World War II. The Order was signed by Operations Officer Major James I. Hopkins, Jr. who would later fly Big Stink in the August 9, 1945 atomic bombing raid on Nagasaki, Japan, under the call sign "Dimples 90".

History Pursuant to the terms of Operations Order No. 35, at 02:45 on August 6, 1945, the Enola Gay, a Boeing B-29 Superfortress bomber, departed North Field, Tinian, for Hiroshima, Japan, with Colonel Paul W. Tibbets, Jr. at the controls. Tinian was approximately 2,000 miles (3,200 km) away from Japan, so it took six hours to reach the target at Hiroshima. The Little Boy atomic bomb was dropped over Hiroshima at 08:15 local time. Tibbets recalled that a tall mushroom cloud covered the city after the bomb was dropped.

Notes

Comments † Big Stink was a backup aircraft for the Hiroshima bombing; it was used for strike observation and photographic purposes for the Nagasaki bombing.

References Groves, Leslie (1962). Now it Can be Told: The Story of the Manhattan Project. New York: Harper & Row. ISBN 0-306-70738-1. OCLC 537684. {{cite book}}: ISBN / Date incompatibility (help) Rhodes, Richard (1986). The Making of the Atomic Bomb. New York: Simon and Schuster. ISBN 0671441337. OCLC 25508555.

Illustrations

Worked examples

Example 1 — a first encounter with Operations Order No. 35

Start with the simplest possible case. Write down what Operations Order No. 35 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 Operations Order No. 35 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 Operations Order No. 35 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 Operations Order No. 35

In research: Operations Order No. 35 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 Operations Order No. 35 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: Operations Order No. 35 is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1945 documents, Atomic bombings of Hiroshima and Nagasaki, Nuclear weapon stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Operations Order No. 35 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 Operations Order No. 35 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Operations Order No. 35 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 Operations Order No. 35 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Operations Order No. 35 in simple terms?

Why does Operations Order No. 35 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 Operations Order No. 35?

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 Operations Order No. 35.