biology

Pieter Cornelius Tobias Snellen

Pieter Cornelius Tobias Snellen is a biology 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 Pieter Cornelius Tobias Snellen rather than just read about it. In short: Pieter Cornelius Tobias Snellen (30 August 1832 – 29 March 1911) was a Dutch entomologist. Pieter Snellen was a merchant in Rotterdam.

Key takeaways

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

Reference excerpt

Pieter Cornelius Tobias Snellen (30 August 1832 – 29 March 1911) was a Dutch entomologist. Pieter Snellen was a merchant in Rotterdam. He is not to be confused with Samuel Constantinus Snellen van Vollenhoven, another entomologist from Rotterdam.

Works Lepidoptera / door P.C.T. Snellen met eene inleidung door Joh. F. Snelleman. Leiden, Brill,1892 online at BHL The Rhopalocera of Java. with Murinus Cornelius Piepers and Hans Fruhstorfer. The Hague, M. Nijhoff 1909–18. online at Biodiversity Heritage Library Four volumes. Snellen, P.C.T. 1872 Bijdrage tot de Vlinder-Faune van Neder-Guinea, zuidwestelijk gedeelte van Afrika. Tidschrift voor Entomologie 15:1-112. Snellen, P.C.T. 1882 Aanteekeningen over Afrikaanische Lepidoptera. Tidschrift voor Entomologie 25:215-234.

References Anonym. 1911 [Snellen, P. C. T.] Entomologist's Monthly Magazine (3), London 114 [1]

External links Gaedicke in Groll, E. K. (Hrsg.): Biografien der Entomologen der Welt : Datenbank. Version 4.15 : Senckenberg Deutsches Entomologisches Institut, 2010.

Worked examples

Example 1 — a first encounter with Pieter Cornelius Tobias Snellen

Start with the simplest possible case. Write down what Pieter Cornelius Tobias Snellen claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, 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 Pieter Cornelius Tobias Snellen 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 Pieter Cornelius Tobias Snellen 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 Pieter Cornelius Tobias Snellen

In research: Pieter Cornelius Tobias Snellen appears in biology 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 Pieter Cornelius Tobias Snellen 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: Pieter Cornelius Tobias Snellen is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1832 births, 1911 deaths, Dutch biologist stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Pieter Cornelius Tobias Snellen 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 Pieter Cornelius Tobias Snellen in 20 minutes

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

Frequently asked questions

What is Pieter Cornelius Tobias Snellen in simple terms?

Pieter Cornelius Tobias Snellen (30 August 1832 – 29 March 1911) was a Dutch entomologist. Pieter Snellen was a merchant in Rotterdam.

Why does Pieter Cornelius Tobias Snellen matter?

Because it connects several biology 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 Pieter Cornelius Tobias Snellen?

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 Pieter Cornelius Tobias Snellen.