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The Long Water

The Long Water 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 The Long Water rather than just read about it. In short: The Long Water is a recreational lake in Kensington Gardens, London, England, created in 1730 at the behest of Caroline of Ansbach. The Long Water refers to the long and narrow western half of the lake.

The Long Water — main illustration
The Long Water — illustration

Key takeaways

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

Reference excerpt

The Long Water is a recreational lake in Kensington Gardens, London, England, created in 1730 at the behest of Caroline of Ansbach. The Long Water refers to the long and narrow western half of the lake. The eastern half is known as the Serpentine. Serpentine Bridge, which marks the boundary between Hyde Park and Kensington Gardens, also marks the Long Water's eastern boundary. The Long Water and the Serpentine are generally considered to be part of one lake.

Geography Originally the lake was fed by the River Westbourne entering at the Italian Garden at the north-western end of the Long Water. The Westbourne ceased to provide the water for the Serpentine in 1834, as the river had become polluted, and so water was then pumped from the Thames. The water is now supplied by three boreholes drilled into the Upper Chalk. The first borehole is located at the Italian Gardens, the second at the Diana Memorial and the third, drilled in 2012 to a depth of 132m, is within 50m of the Diana Memorial. The Long Water runs south-east from this point to Serpentine Bridge, where the lake curves to the east, following the natural contours of the land. At the eastern end, water flows out of the lake via a sluice in the dam, forming a small ornamental waterfall at the Dell. The outflow has not historically maintained the waterfall, and re-circulation pumps were installed in the Dell, below the dam, to sustain this feature. The restoration work in 2012 restored the flows into the Serpentine and this waterfall is now restored as originally designed. Historically the river flowed due south from this point, marking the boundary between Westminster and Kensington, but since 1850 it has been diverted into a culvert, running underground to reach the Thames near Chelsea Bridge. The lake as a whole (including the Serpentine) has a maximum depth of 17 feet (5.3 m). The lake is often reported to be deeper, but bathymetric surveys by the Royal Park in 2010 revealed the design of the lake.

History

In 1730 Queen Caroline, wife of George II, ordered the damming of the River Westbourne in Hyde Park as part of a general redevelopment of Hyde Park and Kensington Gardens. Original monastic ponds may have existed in the location; these were modified as part of the 1730–1732 scheme to create a single lake. At that time, the Westbourne formed eleven natural ponds in the park. During the 1730s, the lake filled to its current size and shape. The redevelopment was carried out by Royal Gardener Charles Bridgeman, who dammed the Westbourne to create the artificial lake, and dug a large pond in the centre of Kensington Gardens (The Round Pond) to be a focal point for pathways in the park. At the time of construction, artificial lakes were typically long and straight. The Serpentine was one of the earliest artificial lakes designed to appear natural, and was widely imitated in parks and gardens nationwide. The lake achieved notoriety in December 1816 when Harriet Westbrook, the pregnant wife of the poet Percy Bysshe Shelley, was found drowned in the Serpentine having left a suicide note addressed to her father, sister and husband. Shelley married Mary Wollstonecraft Godwin less than two weeks later.

The lake formed a focal point of the 1814 celebrations which marked a century of Hanoverian rule and re-enacted the British victory at Trafalgar nine years previously, and of the 1851 Great Exhibition, with the Crystal Palace standing on its southern shore. Following the introduction of more stringent regulations to protect the environment in the park, the relocation of the Crystal Palace, and the construction of the nearby Albertopolis complex of museums and exhibitions, large-scale events ceased to take place on the banks of the Serpentine. However, it was the location for the 1977 Silver Jubilee celebrations, and a venue for the 2012 Olympics. In the 1820s, the park was extensively redesigned by Decimus Burton. At the same time, John Rennie built the Serpentine Bridge to carry the newly built West Carriage Drive along the boundary between Hyde Park and Kensington Gardens, dividing the lake into the Serpentine (east) and the Long Water (west).

Environs

At the northern end of the Long Water are five fountains surrounded by classical statuary and sculpture in an area officially known as the Italian Gardens. A large bronze memorial to Edward Jenner, the developer of modern vaccination, dominates the area; it was originally located in Trafalgar Square in 1858, but four years later was moved to its present site. In recent years there has been an ongoing campaign for the memorial to be moved to the empty plinth in Trafalgar Square. The Long Water is designated as a bird sanctuary. It has important populations of breeding waterfowls, and in winter there are many migratory visitors. A 2005 survey showed it as home to 90 species of moth alone. On the western bank of the Long Water, deliberately hidden in foliage, is a bronze Peter Pan statue by George Frampton. The "real world" elements of the play and novel were set in the park and in the surrounding streets.

Image gallery

References

Bibliography

External links Kensington Gardens and the Long Water official home page

Illustrations

The Long Water illustration
The Long Water: Detail of the 1746 Rocque map showing the newly constructed Serpentine. The paths converging on the Round Pond to the west of the lake are also visible.
Detail of the 1746 Rocque map showing the newly constructed Serpentine. The paths converging on the Round Pond to the west of the lake are also visible.
The Long Water: Serpentine Bridge
Serpentine Bridge
The Long Water: Lansbury's Lido
Lansbury's Lido
The Long Water illustration

Worked examples

Example 1 — a first encounter with The Long Water

Start with the simplest possible case. Write down what The Long Water 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 The Long Water 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 The Long Water 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 The Long Water

In research
The Long Water 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 The Long Water 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
The Long Water is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1730 establishments in England, Buildings and structures completed in 1730, Caroline of Ansbach, so understanding it makes those chapters shorter.
In everyday life
Look for The Long Water 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 The Long Water in 20 minutes

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

Frequently asked questions

What is The Long Water in simple terms?

The Long Water is a recreational lake in Kensington Gardens, London, England, created in 1730 at the behest of Caroline of Ansbach. The Long Water refers to the long and narrow western half of the lake.

Why does The Long Water 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 The Long Water?

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 The Long Water.

Tags

  • 1730 establishments in England
  • Buildings and structures completed in 1730
  • Caroline of Ansbach
  • Hyde Park, London
  • Kensington Gardens
  • Lakes of London
  • Lidos
  • Parks and open spaces in the City of Westminster

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