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George Frederick Barker

George Frederick Barker 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 George Frederick Barker rather than just read about it. In short: George Frederick Barker (July 14, 1835, in Charlestown, Massachusetts – May 24, 1910) was an American physician and scientist. Life and History He graduated from the Yale Scientific School in 1858.

George Frederick Barker — main illustration
George Frederick Barker — illustration

Key takeaways

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

Reference excerpt

George Frederick Barker (July 14, 1835, in Charlestown, Massachusetts – May 24, 1910) was an American physician and scientist.

Life and History He graduated from the Yale Scientific School in 1858. He was successively chemical assistant in Harvard Medical School in 1858–1859 and 1860–1861, professor of chemistry and geology in Wheaton (Ill.) College. In 1864 he became the Professor of Natural Science at the Western University of Pennsylvania, now known as the University of Pittsburgh, where he undertook experiments to produce electric light by passing the current through a resisting filament which he claimed was "the first steady electric light generated in Pittsburgh, if not in the country". He subsequently went to Yale as a professor of physiological chemistry and toxicology, and later was a professor of physics at the University of Pennsylvania, in 1879–1900, when he became emeritus professor. He served as president of the American Association for the Advancement of Science in 1879; president of the American Chemical Society; vice-president of the American Philosophical Society (elected 1873) for 10 years; a member of the United States Electrical Commission; and for several years an associate editor of the American Journal of Science. He lectured in many cities and wrote a Text-Book of Elementary Chemistry (1870); a Physics (1892); and more. In a history of the University of Pennsylvania published upon its bicentennial in 1940, the historian Edward Potts Cheyney recalled the piecemeal entry of women into the university, initially as auditors only, and noted, as Cheyney himself witnessed, that "in the lectures on physics in 1881 two young women sat meekly in a distant corner while Professor Barker was describing the new inventions of the electric light and telephone."

References

This article incorporates text from a publication now in the public domain: Gilman, D. C.; Peck, H. T.; Colby, F. M., eds. (1905). "George Frederick Barker". New International Encyclopedia (1st ed.). New York: Dodd, Mead.

External links Media related to George Frederick Barker at Wikimedia Commons Johnson, Rossiter, ed. (1906). "Barker, George Frederick". The Biographical Dictionary of America. Vol. 1. Boston: American Biographical Society. p. 211. National Academy of Sciences Biographical Memoir

Illustrations

George Frederick Barker illustration

Worked examples

Example 1 — a first encounter with George Frederick Barker

Start with the simplest possible case. Write down what George Frederick Barker 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 George Frederick Barker 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 George Frederick Barker 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 George Frederick Barker

In research
George Frederick Barker 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 George Frederick Barker 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
George Frederick Barker is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1835 births, 1910 deaths, 19th-century American science writers, so understanding it makes those chapters shorter.
In everyday life
Look for George Frederick Barker 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 George Frederick Barker in 20 minutes

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

Frequently asked questions

What is George Frederick Barker in simple terms?

George Frederick Barker (July 14, 1835, in Charlestown, Massachusetts – May 24, 1910) was an American physician and scientist. Life and History He graduated from the Yale Scientific School in 1858.

Why does George Frederick Barker 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 George Frederick Barker?

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 George Frederick Barker.

Tags

  • 1835 births
  • 1910 deaths
  • 19th-century American science writers
  • American chemists
  • Harvard Medical School faculty
  • Members of the American Philosophical Society
  • North Yarmouth Academy alumni
  • Presidents of the American Association for the Advancement of Science
  • University of Pennsylvania faculty
  • University of Pittsburgh faculty
  • Wheaton College (Illinois) faculty
  • Yale School of Engineering and Applied Science alumni

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