science

Luzon Datum of 1911

Luzon Datum of 1911 is a science 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 Luzon Datum of 1911 rather than just read about it. In short: The Luzon Datum of 1911 was the base for the first modern survey of the Philippine Islands. The execution of the triangulation of the Philippine Islands extended over almost as long a time as the history of the American administration in the Philippines.

Key takeaways

Luzon Datum of 1911 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Luzon Datum of 1911 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Luzon Datum of 1911 from memory before moving on to harder problems.

Reference excerpt

The Luzon Datum of 1911 was the base for the first modern survey of the Philippine Islands. The execution of the triangulation of the Philippine Islands extended over almost as long a time as the history of the American administration in the Philippines. The plan of the government to survey the islands began in March 1900 when a United States Coast and Geodetic Survey (USCGS) officer was sent to Manila with instructions to prepare a report on the existing cartographic conditions in the Philippines and to obtain all information necessary for the execution of geodetic, hydrographic, and topographic surveys in the country. After the establishment of the sub-office known as the Manila Field Station, which was housed in the old Intendencia Building in the Walled City of Intramuros, the USCGS commenced fieldwork in the Philippine Islands in January 1901. At that time, an insurrection was in progress and the Islands were under military law. The field surveys were conducted under a joint agreement between the USCGS and the Insular Government. From 1901 to 1911, the USCGS established several triangulation networks across the country which had different origins. In 1911, these different networks on different datums and with different origins were consolidated into one nationwide network and the Luzon Datum was established with triangulation station Balanacan as its datum origin. The Luzon Datum became the primary geodetic reference of all surveys in the Philippines.

References

Further reading Deily, Earle A. (1957). "The Coast and Geodetic Survey in the Philippine Islands" (PDF). The Journal of the Coast and Geodetic Survey. 7: 4–12. Reprinted in Coast and Geodetic Survey Sesquicentennial Papers (PDF). Coast and Geodetic Survey. 1958. Frisby, E. R. (1921). Philippine Surveys by the United States Coast and Geodetic Survey (PDF) (unpublished manuscript). Washington: U.S. Coast and Geodetic Survey.

Illustrations

Worked examples

Example 1 — a first encounter with Luzon Datum of 1911

Start with the simplest possible case. Write down what Luzon Datum of 1911 claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Luzon Datum of 1911 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 Luzon Datum of 1911 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 Luzon Datum of 1911

In research: Luzon Datum of 1911 appears in science 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 Luzon Datum of 1911 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: Luzon Datum of 1911 is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1911 in the Philippines, Geodetic datums, so understanding it makes those chapters shorter.
In everyday life: Look for Luzon Datum of 1911 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Luzon Datum of 1911” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Luzon Datum of 1911 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Luzon Datum of 1911 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 Luzon Datum of 1911 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Luzon Datum of 1911 in simple terms?

Why does Luzon Datum of 1911 matter?

Because it connects several science 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 Luzon Datum of 1911?

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 Luzon Datum of 1911.