earth science

Hans Holtedahl

Hans Holtedahl is a earth 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 Hans Holtedahl rather than just read about it. In short: Hans Holtedahl (8 December 1917 – 24 February 2001) was a Norwegian geologist. He was a professor of geology at the University of Bergen.

Key takeaways

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

Reference excerpt

Hans Holtedahl (8 December 1917 – 24 February 2001) was a Norwegian geologist. He was a professor of geology at the University of Bergen.

Biography He was born in Krisitania (now Oslo, Norway) a son of geologist Olaf Holtedahl (1885–1975) and Tora Gurstad (1889–1980).

In 1936, Holtedahl began studying chemistry and zoology at the University of Oslo. In 1939, he joined a research expedition to Antarctica. Following the German occupation of Norway during spring 1940, he went to Great Britain. He became part of a Norwegian field unit in support of the Free Norwegian forces. Given six months leave in Edinburgh, he studied geology under geologist Arthur Holmes (1890–1965) at the University of Edinburgh. In 1948 he took a master's degree at the University of Oslo and in 1957 he received his doctorate from the University of Bergen. He worked for the University of Bergen from 1949, and was appointed professor of Quaternary geology from 1967, and professor of marine geology from 1972. His doctor thesis treated the geomorphology and sediments on the continental shelf off the coast of Møre. He published a work on the geology of the Hardangerfjord in 1975. In 1952, Hans Holtedahl was honored by the Norwegian Geological Society with the Reusch Medal.

Personal life During his studies in Edinburgh, he met the philology student Wendy Moira Lowe (1923–1978), who he married in 1946 and with whom he had three children.

References

Worked examples

Example 1 — a first encounter with Hans Holtedahl

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

In research: Hans Holtedahl appears in earth 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 Hans Holtedahl 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: Hans Holtedahl is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1917 births, 2001 deaths, 20th-century Norwegian geologists, so understanding it makes those chapters shorter.
In everyday life: Look for Hans Holtedahl 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 Hans Holtedahl in 20 minutes

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

Frequently asked questions

What is Hans Holtedahl in simple terms?

Hans Holtedahl (8 December 1917 – 24 February 2001) was a Norwegian geologist. He was a professor of geology at the University of Bergen.

Why does Hans Holtedahl matter?

Because it connects several earth 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 Hans Holtedahl?

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 Hans Holtedahl.