astronomy

Henry A. Schroeder

Henry A. Schroeder 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 Henry A. Schroeder rather than just read about it. In short: Henry Alfred Schroeder (June 18, 1906 - 1975) M.D., F.A.C.P was an American physiologist and writer. Schroeder was born in Short Hills, New Jersey and graduated from Yale College in 1929.

Key takeaways

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

Reference excerpt

Henry Alfred Schroeder (June 18, 1906 - 1975) M.D., F.A.C.P was an American physiologist and writer. Schroeder was born in Short Hills, New Jersey and graduated from Yale College in 1929. He obtained his medical degree from the Columbia University Vagelos College of Physicians and Surgeons in 1933. During 1939-1942 he served as an assistant in medicine at Rockefeller Institute Hospital. Schroeder worked with Isaac Starr in developing the ballistocardiogram, a device used to detect abnormalities in cardiac function. Schroeder served in the United States Navy and attained the rank of commander. He was a pioneer in aerospace physiology and known for his scientific contributions to the prevention and treatment of hypertension and prevention of diseases caused by imbalance of trace elements. In 1941, Schroeder was the first scientist to notice the importance of salt as compared to water in the management of congestive heart failure. Schroeder's major contribution to the prevention of chronic disease was his development of the low sodium diet which is used widely today in treatment of hypertension. Between 1937-1958 he published over 100 papers on hypertension in medical journals. He was director of the Dartmouth Medical School Trace Elements Laboratory and became emeritus professor of physiology at Dartmouth College. Schroeder's best known work was The Poisons Around Us, first published in 1974. The book documented the toxic effects of metals and the health impact of deficiencies of essential elements in the American diet. He was a fellow of the New York Academy of Medicine. Schroeder died at his home in St. Thomas, Virgin Islands.

Selected publications Mechanisms of Hypertension (1957) A Matter of Choice (1968) Pollution, Profits & Progress (1971) The Trace Elements and Man (1973) The Poisons Around Us (1974, 1994)

References

Worked examples

Example 1 — a first encounter with Henry A. Schroeder

Start with the simplest possible case. Write down what Henry A. Schroeder 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 Henry A. Schroeder 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 Henry A. Schroeder 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 Henry A. Schroeder

In research: Henry A. Schroeder 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 Henry A. Schroeder 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: Henry A. Schroeder is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1906 births, 1975 deaths, 20th-century American medical doctors, so understanding it makes those chapters shorter.
In everyday life: Look for Henry A. Schroeder 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 Henry A. Schroeder in 20 minutes

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

Frequently asked questions

What is Henry A. Schroeder in simple terms?

Henry Alfred Schroeder (June 18, 1906 - 1975) M.D., F.A.C.P was an American physiologist and writer. Schroeder was born in Short Hills, New Jersey and graduated from Yale College in 1929.

Why does Henry A. Schroeder 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 Henry A. Schroeder?

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 Henry A. Schroeder.