engineering

Petras Vileišis

Petras Vileišis is a engineering 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 Petras Vileišis rather than just read about it. In short: Petras Vileišis (25 January 1851 – 12 August 1926) was a prominent Lithuanian engineer specializing in the construction of railroad bridges. He was very active in Lithuanian public life and together with his brothers Jonas and Antanas became one of the key figures of the Lithuanian National Revival.

Key takeaways

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

Reference excerpt

Petras Vileišis (25 January 1851 – 12 August 1926) was a prominent Lithuanian engineer specializing in the construction of railroad bridges. He was very active in Lithuanian public life and together with his brothers Jonas and Antanas became one of the key figures of the Lithuanian National Revival. He studied mathematics at St. Petersburg University and railroad construction at the Emperor Alexander I Institute of Transport Engineers. For about two decades, Vileišis designed and constructed various railroad bridges across the Russian Empire amassing a substantial personal fortune. In 1899, he returned to Lithuania and settled in Vilnius where he built Vileišis Palace and established the first Lithuanian-language daily newspaper Vilniaus žinios as well as a Lithuanian printing press, bookstore, and ironwork factory which later became Vilija. None of these activities were profitable and by 1908 he had exhausted his savings. He then returned to Russia to work on railway bridges for another decade. After World War I, Vileišis returned to now independent Lithuania in 1921 and briefly served as the Minister of Transport in the government of Prime Minister Ernestas Galvanauskas. Vileišis died suddenly while on vacation in Palanga in 1926. Vileišis was very active in Lithuanian public life. Already as a student, he published a handwritten four-page newsletter Kalvis melagis which is the first known Lithuanian periodical in the Russian Empire. Due to an error by the state censors, he managed to get approvals to publish four Lithuanian booklets despite the Lithuanian press ban. When the censorship office caught on the error, Vileišis published at least 55 books in East Prussia and United States that were smuggled into Lithuania. Most of these books were educational texts for the common people. He also continuously petitioned and lobbied various Russian officials, including Minister of Finance Sergei Witte and Governor-General of Vilnius Pyotr Sviatopolk-Mirsky, to get the press ban lifted. His brother Jonas even claimed that Vileišis spent considerable sums in bribing Russian officials to get the ban lifted in 1904. When the ban was lifted, Vileišis hurried to establish the daily newspaper Vilniaus žinios and a Lithuanian printing press. The newspaper's staff was instrumental in organizing the Great Seimas of Vilnius in 1905. Vileišis also supported other Lithuanian activities, including the first exhibition of Lithuanian art which was hosted at his house.

Biography

Education Vileišis was born on 25 January [O.S. 13 January] 1851 in the village of Mediniai near Pasvalys into a family of Lithuanian royal peasants who were free of serfdom. According to family history, they owned one volok of land and frequently traveled to Riga to sell flax, grain, fruits. Vileišis was the eldest of eleven children, but only six sons and two daughters reached adulthood. All sons received education; Petras became an engineer, Anupras assistant to Petras, Antanas a doctor, Juozas a Catholic priest, Jonas a lawyer, and Kazimieras inherited the family farm. Vileišis family hired a tutor (daraktorius) who prepared Petras for Panevėžys Gymnasium. However, the gymnasium was closed after the Uprising of 1863 and Vileišis enrolled into the Šiauliai Gymnasium in January 1866. He was a gifted student, particularly in math, and took additional private lessons in French and German. After the uprising, the gymnasium implemented various Russification policies, but according to future playwright Gabrielius Landsbergis-Žemkalnis who studied at the gymnasium at the same time it was Vileišis who encouraged him to speak Lithuanian. According to the memoirs of his brother Jonas, Vileišis would rather use a French prayer book than a Lithuanian prayer book printed in the Cyrillic script. He graduated in 1870 with a golden medal for academic excellence. Vileišis was then admitted to the Faculty of Mathematics and Physics of St. Petersburg University but only as an audit student. He became a full student in the second year. His tuition fees were waived and he received several stipends. Unlike many students, it appears that Vileišis did not struggle financially and made a decent living tutoring others. After graduation in 1874, he applied for a job as a gymnasium teacher position but was rejected because of his Roman Catholic faith (various Russification policies discriminated against Catholics who were deemed to be unreliable after the Uprising of 1863). Vileišis earned a living as a freelance tutor and translator. Vileišis knew several foreign languages, including Greek, Latin, French, German, English, in addition to "local" languages of Lithuanian, Russian, and Polish. After two years of such living, in August 1876, Vileišis was admitted to the Emperor Alexander I Institute of Transport Engineers. At the time, Russian Empire was investing into its railway network and the diploma promised a well paying engineering job. Vileišis chose the specialty of building caissons used to work on the foundations of a bridge pier. He graduated with distinction in 1881 and was assigned as assistant to the director of the Moscow–Kurks Railroad.

Bridge engineer

… excerpt ends here. Continue reading the full article.

Illustrations

Worked examples

Example 1 — a first encounter with Petras Vileišis

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

In research: Petras Vileišis appears in engineering 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 Petras Vileišis 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: Petras Vileišis is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1851 births, 1926 deaths, 19th-century engineers from the Russian Empire, so understanding it makes those chapters shorter.
In everyday life: Look for Petras Vileišis 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 Petras Vileišis in 20 minutes

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

Frequently asked questions

What is Petras Vileišis in simple terms?

Why does Petras Vileišis matter?

Because it connects several engineering 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 Petras Vileišis?

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 Petras Vileišis.