astronomy

Jules Baillaud

Jules Baillaud 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 Jules Baillaud rather than just read about it. In short: Jules Baillaud (14 January 1876, Paris – 28 November 1960) was a French astronomer. Initially assistant astronomer in Lyon (1900–1904) and at the Paris observatory: assistant astronomer until 1925, he went on as astronomer from 1925 to 1947.

Key takeaways

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

Reference excerpt

Jules Baillaud (14 January 1876, Paris – 28 November 1960) was a French astronomer. Initially assistant astronomer in Lyon (1900–1904) and at the Paris observatory: assistant astronomer until 1925, he went on as astronomer from 1925 to 1947. From 1937 to 1947 he was also the director of the Pic du Midi observatory and directed the Carte du Ciel from 1922 to 1947. Baillaud was the President of the Société astronomique de France (SAF), the French astronomical society, from 1935-1937. In 1938, he received the Prix Jules Janssen, the Society's highest award. The asteroid (1280) Baillauda is named in his memory, while the Baillaud crater on the Moon, and Baillaud asteroid (11764) Benbaillaud, were named after his father Benjamin Baillaud.

Bibliography Dr Frank Duprat. Le Calendrier conceptionnel de la femme, de la conception volontaire à la procréation volontaire du sexe. Avant-propos de M. Jules Baillaud.[4e édition.] (2) Bibliothèque nationale de France Notice sur les travaux scientifiques de M. Jules Baillaud (2) Bibliothèque nationale de France Les courbes spectrales étalons (1) Bibliothèque nationale de France Le développement des études de botanique à l'Observatoire du Pic-du-Midi, travaux sur la reproduction de la pomme de terre, une source de richesses : la reproduction des pommes de terre par semis de graines, résultats obtenus par M. Joseph Bouget dans la haute vallée de l'Adour, leurs conséquences pour l'avenir (1) Bibliothèque nationale de France La Méthode de l'échelle de teintes en photométrie photographique : application à l'étude de l'étalon lumineux à acétylène, par M. Jules Baillaud (1) Bibliothèque nationale de France Jules Baillaud, astronome titulaire à l'Observatoire de Paris. Quelques appareils de sensitométrie et de photométrie photographiques (1) Bibliothèque nationale de France André Giret,... L'Astronomie actuelle et la notion de Dieu. Préface de Jules Baillaud,... (1) Bibliothèque nationale de France manuel de topometrie operations sur le terrain et calculs (1) Bibliothèque nationale de France Observatoire de Paris. Tables de précession pour des changements d'équinoxede 25 et de 50 ans et pour tout autre changement d'équinoxe. [Introduction de Jules Baillaud.] (1) Bibliothèque nationale de France Manuel de vulgarisation pratique (1) Bibliothèque nationale de France

References

Sources http://viaf.org/viaf/95321468/

External links J. Baillaud @ Astrophysics Data System

Worked examples

Example 1 — a first encounter with Jules Baillaud

Start with the simplest possible case. Write down what Jules Baillaud 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 Jules Baillaud 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 Jules Baillaud 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 Jules Baillaud

In research: Jules Baillaud 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 Jules Baillaud 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: Jules Baillaud is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1876 births, 1960 deaths, 20th-century French astronomers, so understanding it makes those chapters shorter.
In everyday life: Look for Jules Baillaud 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 Jules Baillaud in 20 minutes

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

Frequently asked questions

What is Jules Baillaud in simple terms?

Why does Jules Baillaud 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 Jules Baillaud?

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 Jules Baillaud.