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astronomy

James Blythe Rogers

James Blythe Rogers 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 James Blythe Rogers rather than just read about it. In short: James Blythe Rogers (born in Philadelphia, Pennsylvania, 11 February 1802; died there, 15 June 1852) was a United States chemist. Biography He was the eldest son of Patrick Kerr Rogers, who had graduated from the medical department of the University of Pennsylvania in 1802, and in 1819 was elected professor of natural philosophy and mathematics at the College of William & Mary, where he remained until his death.

James Blythe Rogers — main illustration
James Blythe Rogers — illustration

Key takeaways

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

Reference excerpt

James Blythe Rogers (born in Philadelphia, Pennsylvania, 11 February 1802; died there, 15 June 1852) was a United States chemist.

Biography He was the eldest son of Patrick Kerr Rogers, who had graduated from the medical department of the University of Pennsylvania in 1802, and in 1819 was elected professor of natural philosophy and mathematics at the College of William & Mary, where he remained until his death. James Rogers was educated at William and Mary, and, after preliminary studies with Dr. Thomas E. Bond, received the degree of M.D. from the University of Maryland in 1822. Subsequently he taught in Baltimore, but soon afterward settled in Little Britain, Lancaster County, Pennsylvania, and there practised medicine. He found the practice of medicine uncongenial, and returned to Baltimore to become superintendent of a large chemical factory. He devoted himself assiduously to the study of pure and applied chemistry, and became professor of that branch in Washington Medical College, Baltimore, also lecturing on the same subject at the Mechanics' Institute. In 1835 he was called to the same chair in the medical department of Cincinnati College, where he remained until 1839, spending his summer vacations in field work and chemical investigations in connection with the geological survey of Virginia, which was then under the charge of his brother William. In 1840 he settled permanently in Philadelphia, where he became an assistant to his brother Henry, at that time state geologist of Pennsylvania, and in 1841 he was appointed lecturer on chemistry in the Philadelphia Medical Institute, a summer school. He was elected professor of general chemistry at the Franklin Institute in 1844, and remained there until his election in 1847 to succeed Robert Hare as professor of chemistry in the University of Pennsylvania. Rogers was a representative at the national medical convention in 1847, and a delegate to the national convention for the revision of the United States Pharmacopeia in 1850, and a member of various learned societies.

Works He contributed papers to scientific journals, and with his brother Robert prepared the seventh edition of Edward Turner's Elements of Chemistry and William Gregory's Outlines of Organic Chemistry, in one volume (Philadelphia, 1846).

Notes

References This article incorporates text from a publication now in the public domain: Wilson, J. G.; Fiske, J., eds. (1900). "Rogers, James Blythe" . Appletons' Cyclopædia of American Biography. New York: D. Appleton.

Further reading Joseph Carson, Memoir of the Life and Character of James B. Rogers (Philadelphia, 1852) William S. W. Ruschenberger, The Brothers Rogers (Philadelphia, 1885)

Illustrations

James Blythe Rogers illustration

Worked examples

Example 1 — a first encounter with James Blythe Rogers

Start with the simplest possible case. Write down what James Blythe Rogers 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 James Blythe Rogers 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 James Blythe Rogers 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 James Blythe Rogers

In research
James Blythe Rogers 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 James Blythe Rogers 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
James Blythe Rogers is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1802 births, 1852 deaths, American chemists, so understanding it makes those chapters shorter.
In everyday life
Look for James Blythe Rogers 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 James Blythe Rogers in 20 minutes

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

Frequently asked questions

What is James Blythe Rogers in simple terms?

James Blythe Rogers (born in Philadelphia, Pennsylvania, 11 February 1802; died there, 15 June 1852) was a United States chemist. Biography He was the eldest son of Patrick Kerr Rogers, who had graduated from the medical department of the University of Pennsylvania in 1802, and in 1819 was elected…

Why does James Blythe Rogers 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 James Blythe Rogers?

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 James Blythe Rogers.

Tags

  • 1802 births
  • 1852 deaths
  • American chemists
  • College of William & Mary alumni
  • Medical doctors from Philadelphia
  • University of Cincinnati faculty
  • University of Maryland, College Park alumni
  • University of Pennsylvania faculty

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