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Galathea expeditions

Galathea expeditions 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 Galathea expeditions rather than just read about it. In short: The Galathea expeditions comprise a series of three Danish ship-based scientific research expeditions in the 19th, 20th and 21st centuries, carried out with material assistance from the Royal Danish Navy and, with regard to the second and third expeditions, under the auspices of the Danish Expedition Foundation. All three expeditions circumnavigated the world from west to east and followed similar routes.

Galathea expeditions — main illustration
Galathea expeditions — illustration

Key takeaways

  • Galathea expeditions 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 Galathea expeditions to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Galathea expeditions from memory before moving on to harder problems.

Reference excerpt

The Galathea expeditions comprise a series of three Danish ship-based scientific research expeditions in the 19th, 20th and 21st centuries, carried out with material assistance from the Royal Danish Navy and, with regard to the second and third expeditions, under the auspices of the Danish Expedition Foundation. All three expeditions circumnavigated the world from west to east and followed similar routes.

First expedition

Preparations The first Galathea Expedition took place from 1845 to 1847 and had political and scientific objectives. It was initiated by the King of Denmark, Christian VIII, with its main purposes the handover of the Danish colonies in India, following their sale to the British East India Company, as well as a final Danish attempt to explore and recolonise the Nicobar Islands in the Indian Ocean. Additional aims were the expansion of trade with China and the discovery of new trading opportunities, as well as making extensive scientific collections. HDMS Galathea was a three-masted sailing ship, a naval corvette which had been built in 1831 at the Gammelholm naval shipyard in Copenhagen. It was 43 m (141 ft) in length and had a draught of 5 m (16 ft). When it departed on its voyage under the leadership of Captain Steen Andersen Bille it carried 231 seamen and scientists, 36 guns, and supplies for one year. The scientists included physician and assistant botanist Didrik Ferdinand Didrichsen, botanist Bernhard Casper Kamphøvener, entomologist Carl Emil Kiellerup, geologist Hinrich Johannes Rink and zoologists Wilhelm Friedrich Georg Behn and Johannes Theodor Reinhardt, not all of whom remained for the duration of the voyage, as well as sketch artist Johan Christian Thornam and genre painter Poul August Plum. It was an expensive undertaking, with a budget of nearly half a million Rixdollars, equivalent to 3% of Denmark's annual state revenues at the time.

The voyage

Galathea left Copenhagen on 24 June 1845 and, after a provisioning stop at Madeira, sailed southwards around Africa to India, where she visited Tranquebar, Pondicherry, Madras and Calcutta. In Calcutta an additional ship, the steamboat Ganges, was purchased and the carrier Christine hired, to assist with work in the Nicobar Islands. Considerable time and effort was expended at the Nicobars; most of January 1846 was spent in the northern Nicobar islands, and February in the southern. As well as scientific surveys and collecting, preparations were made for a new colony based at Pulo Milu. Several people, including the geologist Rink, remained there when the expedition departed, though the nascent colony was abandoned only two years later. The Galathea proceeded to Southeast Asia, calling at Penang, Singapore, Batavia, and Manila before heading for the Chinese coast and visiting Hong Kong, Macau, Canton, Amoy, and Shanghai. An attempt to stop at Japan was rebuffed by the authorities there. The ship then crossed the Pacific Ocean, visiting the Hawaiian archipelago and Tahiti on the way, to Valparaíso, Callao, and Lima in South America, before rounding Cape Horn. Further visits were made to Buenos Aires, Montevideo, Rio de Janeiro, and Bahia, following which Galathea headed back to Denmark, anchoring in Copenhagen harbour on 24 August 1847 after a voyage of more than two years. During the course of the voyage 20 Danish sailors had died and several others were discharged.

Results The expedition returned with 93 containers of "zoological, entomological, botanical and geological Objects". There were also 21 boxes of ethnographic material, a large collection from Java, as well as gifts from scientists in many of the cities and ports visited by the expedition. The intention of Christian VIII was to sponsor the publication of the scientific results of the expedition. However, the King died in January 1848 and the country was thrown into the Three Years' War. Most of the boxes of collected items lay unopened for many years and, with some exceptions, were never properly processed, nor the full results formally published. The collections subsequently served mainly as reference material.

Second expedition The second expedition, Galathea Deep Sea Expedition was conceived in 1941 in discussions between journalist and author Hakon Mielche and oceanographer and ichthyologist Anton Frederik Bruun. It was originally hoped to send out a second expedition on the centenary of the first; however, World War II intervened and preparations had to be postponed. In June 1945 the two protagonists, along with explorers Eigil Knuth, Ebbe Munch and Henning Haslund-Christensen, decided to establish the Danish Expedition Foundation, which was to raise funds for the second Galathea, as well as other, expeditions. The expedition eventually started in 1950, with its main purpose deep sea oceanography. For the use of the expedition a British sloop, HMS Leith, was acquired and renamed HDMS Galathea. It was 80 m (260 ft) long and 11 m (36 ft) wide, with a draught of 3.5 m (11 ft) and was powered by two steam turbines that gave it a cruising speed of 12 knots (22 km/h; 14 mph). Galathea 2 left Copenhagen in October 1950 carrying a crew of about 100 seamen and scientists, visiting many of the same places the original Galathea had visited over a century earlier. The main difference in the route taken from the earlier expedition was in using the Panama Canal, rather than the Drake Passage at the southern end of South America, to transit between the Pacific Ocean and the Atlantic. From 1950 to 1952 the expedition carried out a program of scientific exploration; the highlight occurred in July 1951 when, while investigating the Philippine Trench, scientists secured biological material from a record depth of 10,190 m (33,430 ft). The expedition returned to Copenhagen in June 1952 where the ship was welcomed by a crowd of 20,000 people.

Results The second Galathea expedition led to the discovery of, among other things, the fish species Antipodocottus galatheae and Abyssobrotula galatheae, the snail species Guttula galatheae and, above all, living Monoplacophora, a class of "ancestral mollusc" which until then was known only from the fossil record. The biggest sensation at the time, however, was the discovery of sea anemones on a rock from the bottom of the Philippine Trench since it had been assumed that life could not exist at this sea depth. Dr Claude E. ZoBell, the 'Father of Marine Microbiology', was aboard this expedition.

… excerpt ends here. Continue reading the full article.

Illustrations

Galathea expeditions: The corvette HDMS Galathea (1833–1861)
The corvette HDMS Galathea (1833–1861)
Galathea expeditions: HDMS Galathea at the Nicobar Islands in 1846
HDMS Galathea at the Nicobar Islands in 1846
Galathea expeditions: Vædderen being welcomed home to Copenhagen on 25 April 2007 at the end of her voyage
Vædderen being welcomed home to Copenhagen on 25 April 2007 at the end of her voyage

Worked examples

Example 1 — a first encounter with Galathea expeditions

Start with the simplest possible case. Write down what Galathea expeditions 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 Galathea expeditions 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 Galathea expeditions 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 Galathea expeditions

In research
Galathea expeditions 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 Galathea expeditions 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
Galathea expeditions is common in secondary-school and first-year university syllabi. It links to neighbouring topics Expeditions from Denmark, Exploration ships, Global expeditions, so understanding it makes those chapters shorter.
In everyday life
Look for Galathea expeditions 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 Galathea expeditions in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Galathea expeditions means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Galathea expeditions out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Galathea expeditions in simple terms?

The Galathea expeditions comprise a series of three Danish ship-based scientific research expeditions in the 19th, 20th and 21st centuries, carried out with material assistance from the Royal Danish Navy and, with regard to the second and third expeditions, under the auspices of the Danish Expediti…

Why does Galathea expeditions 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 Galathea expeditions?

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 Galathea expeditions.

Tags

  • Expeditions from Denmark
  • Exploration ships
  • Global expeditions
  • Oceanographic expeditions
  • Research vessels
  • Royal Danish Navy
  • Science and technology in Denmark

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