astronomy

Leonard Feldman

Leonard Feldman 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 Feldman rather than just read about it. In short: Leonard Cecil Feldman (born New York City, 8 June 1939) is an American materials physicist. He gained his B.A. degree in 1961 from Drew University and his Ph.D. from Rutgers University in 1967.

Key takeaways

Leonard Feldman 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 Feldman to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Leonard Feldman from memory before moving on to harder problems.

Reference excerpt

Leonard Cecil Feldman (born New York City, 8 June 1939) is an American materials physicist. He gained his B.A. degree in 1961 from Drew University and his Ph.D. from Rutgers University in 1967. He then joined AT&T Bell Laboratories, working on semiconductor materials physics. In 1996 he assumed the position of Stevenson Professor of Physics at Vanderbilt University and Distinguished Visiting Scientist at Oak Ridge National Laboratory. His researches have focussed the use of ion beams for the study and modification of solids, studying the surface structure of solids, mostly semiconductors, at the monolayer level. His current interest concerns the effect of ion beam on nanostructures and organic materials. He was named Fellow of the Institute of Electrical and Electronics Engineers (IEEE) in 2016 "for contributions to semiconductor-dielectric interfaces for MOS technologies".

References

Worked examples

Example 1 — a first encounter with Leonard Feldman

Start with the simplest possible case. Write down what Leonard Feldman 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 Feldman 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 Feldman 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 Feldman

In research: Leonard Feldman 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 Feldman 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 Feldman is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1939 births, American electrical engineer stubs, American electrical engineers, so understanding it makes those chapters shorter.
In everyday life: Look for Leonard Feldman 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 Feldman in 20 minutes

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

Frequently asked questions

What is Leonard Feldman in simple terms?

Leonard Cecil Feldman (born New York City, 8 June 1939) is an American materials physicist. He gained his B.A. degree in 1961 from Drew University and his Ph.D. from Rutgers University in 1967.

Why does Leonard Feldman 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 Feldman?

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 Feldman.