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Ormond Stone

Ormond Stone is a mathematics 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 Ormond Stone rather than just read about it. In short: Ormond Stone (January 11, 1847 – January 17, 1933), was an American astronomer, mathematician and educator. He was the director of Cincinnati Observatory and subsequently the first director of the McCormick Observatory at the University of Virginia, where he trained a significant number of scientists.

Ormond Stone — main illustration
Ormond Stone — illustration

Key takeaways

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

Reference excerpt

Ormond Stone (January 11, 1847 – January 17, 1933), was an American astronomer, mathematician and educator. He was the director of Cincinnati Observatory and subsequently the first director of the McCormick Observatory at the University of Virginia, where he trained a significant number of scientists. He served as the editor of the Annals of Mathematics and towards the end of his life made donations which led to the founding of the Fairfax Public Library System.

Early years Stone was born in Pekin, Illinois, to Methodist minister Elijah and Sophia Louise (Creighton) Stone. While attending Chicago High School, he met Truman Henry Safford, an astronomer at the recently completed Dearborn Observatory. Stone became his pupil, quickly beginning his lifelong interest in astronomy. In 1866, Stone enrolled at the Old University of Chicago, graduating with a degree of master's degree in 1870. Working his way through school, he served as an instructor in 1867–1868 at Racine College in Wisconsin, then at the Northwestern Female College (which is now a part of Northwestern University) at Evanston, Illinois in 1869. Also that year, he participated in what would be the first of three eclipse expeditions in his lifetime. It was on this trip to Des Moines, Iowa, with Safford that he met astronomers from the United States Naval Observatory (USNO). He would end up being in charge of the later two expeditions, the first in 1878, when he led the USNO expedition to Colorado, and the May 28, 1900 eclipse, when he led the McCormick Observatory expedition to Winesboro, South Carolina. Upon graduating from the University of Chicago in 1870, he accepted an assistantship at the USNO, where he stayed until 1875. He was assigned to the Meridian Circle, under William Harkness. His tenure there coincided with the arrival of the 26-inch (660 mm) Alvan Clark refractor at the Naval Observatory. This telescope was essentially a twin to the future McCormick Refractor. In 1871, he married Catherine Flagler of Washington, D.C.

Cincinnati Observatory In 1875, Stone accepted the directorship of the Cincinnati Observatory, having received a recommendation from Simon Newcomb. While there, he instituted a program of discovering new southern double stars and was the first to establish standard time for an American city, and he pushed for the adoption of Standard Time Belts (or zones, as we now know them).

McCormick Observatory In 1882, Stone was offered the position of director at the brand new observatory being built at the University of Virginia, and was accompanied from Cincinnati by John Jones and Frank P. Leavenworth. Stone oversaw the final stages of construction on the observatory, which was completed in 1885, but began astronomical work almost immediately upon his arrival in Charlottesville. Stone's work focused largely on observing nebulae, southern variables and double stars. As director, Stone's responsibilities included fundraising, which he detested and did very poorly. Though the observatory was always short of funds, he used funds donated by William Henry Vanderbilt to establish three fellowships, $350 for a year, to pay for assistants at the observatory. The list of Vanderbilt Fellows who worked under Stone was an impressive one, and included astronomers, university presidents, professors and professionals in various fields, including:

Francis P. Leavenworth, Director of Haverford Observatory, Professor of Astronomy at the University of Minnesota Harry Y. Benedict, Tenth President of the University of Texas at Austin Edgar Odell Lovett, first President of Rice Institute (now Rice University) Heber Doust Curtis, director of Lick Observatory and Allegheny Observatory James Park McCallie, founder of The McCallie School George F. Paddock, Assistant Astronomer at Lick Observatory Charles P. Olivier, Director of Flower and Cook Observatory and Chair of the Astronomy Department, University of Pennsylvania Herbert R. Morgan, astronomer at the United States Naval Observatory Ralph Elmer Wilson, astronomer at Dudley Observatory and Mount Wilson Observatory Stone remained at the McCormick Observatory until 1912. In his time there, he taught various astronomy courses for the university; founded the Annals of Mathematics in 1884, funding the publication with his own money, and edited the journal until 1899 (after which he served on the editorial board); founded the Philosophical Society at the university; and spent much of the final ten years of his directorship in the cause for secondary education in Virginia. He was a member of the American Association for the Advancement of Science (Member: 1875; Fellow: 1876; chair, Committee on Standard Time: 1880; Member of Committee on Stellar Magnitudes: 1880; Vice-president, Astronomy and Mathematics: 1887; Vice-president of Section A: Astrometry, of Department 11: Astronomy: 1888; Chair: 1901 Councilor, Section A, Mathematics and Astronomy: 1902–1905; Sectional Committee, Section A: 1905–1907; Emeritus Life Member: 1927), the American Astronomical and Astrophysical Society, now known as the American Astronomical Society (Councilor 1899–1909), and the American Mathematical Society (Councilor 1897), among many other academic societies. He served on the Board of Visitors (as Secretary) for the United States Naval Observatory from 1901 to 1903, served on the first Advisory Committee on Mathematics for the Carnegie Institution of Washington starting in 1902, and was a trustee of Harrisonburg Normal College (now James Madison University). He also maintained contacts with people of influence across the country, including his brother Melville E. Stone, the founder of the Chicago Daily News, who became well known as the General Manager of Associated Press.

… excerpt ends here. Continue reading the full article.

Illustrations

Ormond Stone illustration

Worked examples

Example 1 — a first encounter with Ormond Stone

Start with the simplest possible case. Write down what Ormond Stone claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In mathematics, 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 Ormond Stone 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 Ormond Stone 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 Ormond Stone

In research
Ormond Stone appears in mathematics 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 Ormond Stone 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
Ormond Stone is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1847 births, 1933 deaths, 19th-century American astronomers, so understanding it makes those chapters shorter.
In everyday life
Look for Ormond Stone 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 Ormond Stone in 20 minutes

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

Frequently asked questions

What is Ormond Stone in simple terms?

Ormond Stone (January 11, 1847 – January 17, 1933), was an American astronomer, mathematician and educator. He was the director of Cincinnati Observatory and subsequently the first director of the McCormick Observatory at the University of Virginia, where he trained a significant number of scientis…

Why does Ormond Stone matter?

Because it connects several mathematics 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 Ormond Stone?

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 Ormond Stone.

Tags

  • 1847 births
  • 1933 deaths
  • 19th-century American astronomers
  • 19th-century American mathematicians
  • 20th-century American astronomers
  • 20th-century American mathematicians
  • Mathematicians from Illinois
  • Mathematicians from Virginia
  • Northwestern University faculty
  • Pedestrian road incident deaths
  • People from Centreville, Virginia
  • People from Pekin, Illinois

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