astronomy

Woodruff T. Sullivan III

Woodruff T. Sullivan III 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 Woodruff T. Sullivan III rather than just read about it. In short: Woodruff T. Sullivan III ("Woody" Sullivan) (born 1944) is an American physicist and astronomer, known primarily for his work in astrobiology, galactic astronomy and extragalactic astronomy, history of astronomy, gnomonics, and the search for extraterrestrial intelligence (SETI).

Key takeaways

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

Reference excerpt

Woodruff T. Sullivan III ("Woody" Sullivan) (born 1944) is an American physicist and astronomer, known primarily for his work in astrobiology, galactic astronomy and extragalactic astronomy, history of astronomy, gnomonics, and the search for extraterrestrial intelligence (SETI). Sullivan was born in Colorado, USA. He went on to study physics at the Massachusetts Institute of Technology, where he received a B.S. in 1966, and in 1971 a Ph.D. (astronomy) from the University of Maryland (supervisor: Frank John Kerr). In 2012, Sullivan received the LeRoy E. Doggett Prize from the American Astronomical Society's Historical Astronomy Division for his career contributions to the field of the history of astronomy, in particular his work on the history of early radio astronomy, culminating in his book Cosmic Noise: A History of Early Radio Astronomy (2009). He was elected a Legacy Fellow of the American Astronomical Society in 2020.

Earth radio leakage research In order to sample the radio signature of Earth from an external site and thus test whether TV broadcasting is in fact the principal component, Sullivan and S. H. Knowles used the Moon as a passive reflector of Earth's radio frequency leakage. Using the 305-m Arecibo radio telescope, a wide range of frequencies were scanned between 100 and 400 MHz. After local interference was eliminated (using an on-Moon, off-Moon technique), the frequencies of most observed signals could be identified with the television AM video carriers of various nationalities. This experiment demonstrated that the lunar surface is capable of reflecting terrestrial band III (175–230 MHz) television signals

References

External links Eavesdropping Mode and Radio Leakage from Earth at the Wayback Machine (archived 2011-06-21) (NASA) Woodruff T. Sullivan, III, Curriculum Vitae. Archived from the original.

Illustrations

Worked examples

Example 1 — a first encounter with Woodruff T. Sullivan III

Start with the simplest possible case. Write down what Woodruff T. Sullivan III 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 Woodruff T. Sullivan III 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 Woodruff T. Sullivan III 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 Woodruff T. Sullivan III

In research: Woodruff T. Sullivan III 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 Woodruff T. Sullivan III 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: Woodruff T. Sullivan III is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1944 births, 21st-century American physicists, American astrobiologists, so understanding it makes those chapters shorter.
In everyday life: Look for Woodruff T. Sullivan III 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 Woodruff T. Sullivan III in 20 minutes

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

Frequently asked questions

What is Woodruff T. Sullivan III in simple terms?

Why does Woodruff T. Sullivan III 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 Woodruff T. Sullivan III?

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 Woodruff T. Sullivan III.