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J. Clarence Karcher

J. Clarence Karcher is a physics 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 J. Clarence Karcher rather than just read about it. In short: John Clarence Karcher (April 15, 1894 – July 13, 1978) was an American geophysicist and businessman. He invented and eventually commercialized the reflection seismograph, applying for patents in 1919.

J. Clarence Karcher — main illustration
J. Clarence Karcher — illustration

Key takeaways

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

Reference excerpt

John Clarence Karcher (April 15, 1894 – July 13, 1978) was an American geophysicist and businessman. He invented and eventually commercialized the reflection seismograph, applying for patents in 1919. By the patenting, and development of reflection seismography, he created the means by which most of the world's oil reserves have been discovered. In 1930 he, Eugene McDermott, and Everette Lee DeGolyer founded Geophysical Service Incorporated, a pioneering provider of seismic exploration services to the petroleum industry that focused on reflection seismology.

Biography

Early life John Clarence Karcher was born on April 15, 1894, in Dale, Indiana. He was the son of Leo and Mary (Madlon) Karcher. When he was five the family moved to Oklahoma Territory and settled in a farming community near Hennessey. In 1912 he earned a high school diploma.

Education As an undergraduate, Karcher attended the University of Oklahoma where in 1916 he received a BS degree in both Electrical Engineering and physics and was at the head of his class. When the university was granted a chapter in 1918, he was elected to Phi Beta Kappa. Upon graduation Karcher accepted the Tyndal Fellowship in Physics at the University of Pennsylvania where he began graduate work in September 1916. For his PhD thesis he focused on X-ray emissions, but continued research into geophysics. While he completed his doctorate, he was associated with the Geological Engineering Company, organized by his former professors Ohern and Haseman. The company was the first to commercialize the concept of the reflection seismograph. World War I interrupted his graduate studies and he served with the United States Bureau of Standards. His assignment was to locate heavy artillery batteries in France by studying the acoustic waves the guns generated in the air. He noted an unexpected event in his research and switched his concentration to seismic waves in the earth. He thought it would be possible to determine the depth of underlying geological strata by vibrating the Earth's surface while precisely recording and timing the returning waves of energy (sound waves). On October 16, 1920, Karcher married Lydia Kilborn; they had two children.

Career In 1919, Karcher applied for patents in reflection seismography. By 1921, he had validated reflection seismology as an authentic tool in the search for oil but at the time oil prices were too low for oil companies to budget for this new technology. Unable at the time to pursue a career in petroleum exploration, Karcher went to work for the Bureau of Standards, and then joined Western Electric Company where he performed research on ocean-bottom telegraph cable. It was here that he first met a young Eugene McDermott.

Amerada and GRC

Later when Everette Lee DeGolyer, vice president and general manager of Amerada Petroleum Corporation, learned of Karcher's 1921 experiments with the seismograph he held a meeting with Karcher that resulted in the creation of Geophysical Research Corporation (GRC) by 1925. GRC would function as a subsidiary of Amerada Petroleum which had been formally established in 1920. Karcher was made vice president, with a $300,000 research fund and a considerable 15 percent stock interest, which he had negotiated with DeGolyer. One of his first actions after establishing headquarters in Bloomfield, New Jersey, was to hire Eugene McDermott, his protégé from Western Electric, then a Columbia University graduate student. GRC began using seismographic refraction but would introduce the seismic reflection method which over the next five years was accepted by the petroleum industry as a promising new tool. Relatively shallow salt domes could be located successfully with the refraction technique, and this constituted most of GRC's activity in its early years. Rather than simply locating salt domes, reflection seismography could find the location, or at least provide significant clues about where actual pools of oil were located. Major wells drilled next to salt domes included Spindletop in South Texas, and a well in Nash, Texas. In December 1928, Amerada's drill penetrated the Viola limestone in the Seminole, Oklahoma, area and produced the first oil well in history to be drilled in a structure found by a reflection seismograph.

Geophysical Service Inc. In 1930, with the backing of DeGolyer, now president of Amerada, Karcher and McDermott, with a 50% interest purchased by DeGolyer for $100,000, launched the petroleum exploration company Geophysical Service Incorporated. Karcher served as president and McDermott as vice-president of the newly formed oil exploration company. Karcher and his staff took the remaining 50% interest. In 1941, DeGolyer and Karcher sold their controlling interest in GSI to GSI Vice-president Eugene McDermott, and employees Cecil Green, Erik Jonsson and H. P. Peacock. Remaining as a wholly owned subsidiary pursuing oil exploration services, GSI spun off Texas Instruments(TI) in 1951. TI would find enormous success and growth pursuing a broader range of electronics manufacturing. Karcher would continue in leadership roles with oil production and exploration companies, but would be largely divested of his interest in GSI by 1950, prior to the inception of TI.

Other oil executive roles Karcher served as president and general manager of Coronado Corporation, a subsidiary of Texas Instruments, from 1939 to 1941, and as chairman of the board of Las Tecas Petroleum Company from 1941 to 1945. He served as president and chairman of the board of Comanche Corporation from 1945 to 1950. He was president of Concho Petroleum Company from 1950 until the time of his death in 1974.

Professional affiliations Karcher served as the President of the Society of Exploration Geophysicists, was a fellow in the American Association for the Advancement of Science, and a member of the American Physical Society. He also served as charter member of the Dallas Petroleum Club.

… excerpt ends here. Continue reading the full article.

Illustrations

J. Clarence Karcher: E. L. DeGolyer, 1913
E. L. DeGolyer, 1913

Worked examples

Example 1 — a first encounter with J. Clarence Karcher

Start with the simplest possible case. Write down what J. Clarence Karcher claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, 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 J. Clarence Karcher 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 J. Clarence Karcher 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 J. Clarence Karcher

In research
J. Clarence Karcher appears in physics 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 J. Clarence Karcher 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
J. Clarence Karcher is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1894 births, 1978 deaths, 20th-century American physicists, so understanding it makes those chapters shorter.
In everyday life
Look for J. Clarence Karcher 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 J. Clarence Karcher in 20 minutes

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

Frequently asked questions

What is J. Clarence Karcher in simple terms?

John Clarence Karcher (April 15, 1894 – July 13, 1978) was an American geophysicist and businessman. He invented and eventually commercialized the reflection seismograph, applying for patents in 1919.

Why does J. Clarence Karcher matter?

Because it connects several physics 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 J. Clarence Karcher?

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 J. Clarence Karcher.

Tags

  • 1894 births
  • 1978 deaths
  • 20th-century American physicists
  • American geophysicists
  • Fellows of the American Physical Society
  • People from Spencer County, Indiana
  • University of Oklahoma alumni
  • University of Pennsylvania alumni

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