engineering

Ithaa

Ithaa 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 Ithaa rather than just read about it. In short: Ithaa (Dhivehi: އިތާ, meaning "mother of pearl") is an undersea restaurant located 5 metres (16 ft) below sea level at the Conrad Maldives Rangali Island in Alif Dhaal Atoll in the Republic of Maldives. Overview The 5-by-9-metre (16 by 30 ft) mostly acrylic structure has a capacity of 14 people and is encased in R-Cast acrylic with a transparent roof offering a 270° panoramic underwater view.

Key takeaways

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

Reference excerpt

Overview The 5-by-9-metre (16 by 30 ft) mostly acrylic structure has a capacity of 14 people and is encased in R-Cast acrylic with a transparent roof offering a 270° panoramic underwater view. The restaurant was designed and constructed by M.J. Murphy Ltd – a design consultancy based in New Zealand – and was opened on in April 2005, describing itself as the world's first undersea restaurant. Food served in the restaurant has changed over the years and has more recently been described as contemporary European with Asian influences. Ithaa's entrance is a spiral staircase in a thatched pavilion at the end of a jetty. The tsunami which followed the 2004 Indian Ocean earthquake topped at 0.31 metres (1 ft 0 in) below the staircase entrance, and caused no damage to the restaurant. The restaurant is also used for private parties and weddings. In April 2010, to celebrate Ithaa's 5th anniversary, the restaurant could be booked as an overnight residence. This "underwater suite" promotion continued until April 2011.

Conception In February 2004, M.J. Murphy Ltd. was approached by Crown Company in the Maldives to make a unique underwater restaurant. The Crown Company, owner of Rangali Island, leases the island to Conrad Maldives Rangali Island (previously known as Hilton Maldives Rangali Island Resort & Spa). Initially Crown envisioned the underwater restaurant with straight walls and glass windows. Later they came to favor Mike Murphy's (of M.J. Murphy Ltd.) R-Cast acrylic tunnel, manufactured by Reynolds Polymer Technology, Inc. in the United States. This tunnel was also designed for the Kuala Lumpur National Science Centre, the world's largest aquarium tunnel. Work on technical designs and drawings for Ithaa started in March 2004. Murphy initially planned to build the structure on the beach of Rangali. Once constructed, Ithaa would be winched into the water. Technical challenges, limited resources, and quality control problems in building a structure of 175 tonnes in the Maldives were foreseen. Hence, a decision was made to build Ithaa in Singapore instead.

Construction In May 2004, Ithaa's construction began in Singapore. In October 2004, the construction work was completed including the installation of 5-metre (16 ft) wide acrylic arches, air conditioning and electrical ducts. On November 1, 2004, Ithaa was lifted onto an ocean-going barge to be transported to the Maldives, which took 16 days to arrive. At this point, Ithaa weighed 175 tonnes. On November 19, 2004, Ithaa was "sunk" with the help of 85 tonnes of sand ballast loaded into its belly. It was precisely maneuvered onto four steel piles which had been vibro-hammered 4 to 5 metres (13 to 16 ft) into the seabed. It was then secured to the steel piles with concrete. The estimated life span of the restaurant is 20 years, concluding in the mid-2020s.

The hotel The hotel (which at the time Ithaa was built was still called Hilton Maldives Resort & Spa) occupies two private islands, Rangali and Rangalifinolhu joined by a 500-metre (1,600 ft) jetty. It has seven restaurants including the Ithaa Undersea Restaurant.

References

External links Ithaa sinking and securing pictures from Fun Distraction Restaurant Review And Photos Archived 2024-07-13 at the Wayback Machine News on hospitalitynet.org Ithaa Menu MJ Murphy Ltd – architect and engineer of the restaurant Hilton Maldives Resort – ITHAA, The Undersea Restaurant

Illustrations

Worked examples

Example 1 — a first encounter with Ithaa

Start with the simplest possible case. Write down what Ithaa 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 Ithaa 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 Ithaa 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 Ithaa

In research: Ithaa 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 Ithaa 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: Ithaa is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2004 establishments in the Maldives, Buildings and structures completed in 2004, Restaurants established in 2004, so understanding it makes those chapters shorter.
In everyday life: Look for Ithaa 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.

Affiliate

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

How to study Ithaa in 20 minutes

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

Frequently asked questions

What is Ithaa in simple terms?

Ithaa (Dhivehi: އިތާ, meaning "mother of pearl") is an undersea restaurant located 5 metres (16 ft) below sea level at the Conrad Maldives Rangali Island in Alif Dhaal Atoll in the Republic of Maldives. Overview The 5-by-9-metre (16 by 30 ft) mostly acrylic structure has a capacity of 14 people and…

Why does Ithaa 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 Ithaa?

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 Ithaa.