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Round barn

Round barn is a 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 Round barn rather than just read about it. In short: A round barn is a historic barn design that could be octagonal, polygonal, or circular in plan. Though round barns were not as popular as some other barn designs, their unique shape makes them noticeable.

Round barn — main illustration
Round barn — illustration

Key takeaways

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

Reference excerpt

A round barn is a historic barn design that could be octagonal, polygonal, or circular in plan. Though round barns were not as popular as some other barn designs, their unique shape makes them noticeable. The years from 1880 to 1920 represent the height of round barn construction. Round barn construction in the United States can be divided into two overlapping eras. The first, the octagonal era, spanned from 1850 to 1900. The second, the true circular era, spanned from 1889 to 1936. The overlap meant that round barns of both types, polygonal and circular, were built during the latter part of the nineteenth century. Numerous round barns in the United States are listed on the National Register of Historic Places.

History

Round barns date to the 18th and early 19th century. George Washington designed and built a sixteen-sided threshing barn at his Dogue Run Farm in Fairfax County, Virginia in 1793. The first truly round barn in North America was constructed in 1826 at Hancock Shaker Village. A few other round barns appeared on the American landscape before the Civil War. Despite considerable publicity of the 1826 Shaker barn, the design did not become popular until the 1880s, when some agricultural colleges began to push the design as they taught progressive farming methods, based on the principles of industrial efficiency. It was between 1880 and 1920 that round barns were most popular in the United States, especially in the Midwest.

The rise in popularity and the promotion of round barns occurred surrounding the new focus on efficiency. The circular shape has a greater volume-to-surface ratio than a square barn. Regardless of size, this made round barns cheaper to construct than similar-sized square or rectangular barns because they required less materials. The structural stability is also enhanced over that of a typical quadrilaterally shaped barn. Simplified construction lacking elaborate truss systems for the arched roof was also seen as an advantage. In the Midwest, particularly, the buildings were thought more resilient against prairie thunderstorms. The interior layout of round barns was promoted as more efficient, since farmers could work in a continuous direction. In the days before mechanization, labor-saving features were a big selling point. The interest in round barns spread to California in the later 19th century and several were built there. Santa Rosa, California is home to the De Turk Round Barn, a well-preserved example built in the late 1870s by local settler and businessman Isaac De Turk. Claims of round barn efficiency were overstated. The round barn never caught on as a standard barn, as some of those pushing the progressive, efficiency-based agricultural methods had hoped. The spread of machinery, especially with the Rural Electrification program, eliminated the advantages of labor-saving designs that were more complicated to build, and the popularity of round barns faded. Regardless, numerous round barns were constructed during the period of popularity the design enjoyed, and a large number still stand today.

Round barn era

Octagonal

The "Octagonal Era" of round barn design stretched from about 1850 until 1900. Round barns, such as Washington's, were often multi sided in their earliest incarnations. Multi-sided round barns came in a variety of polygonal shapes, including layouts of six, eight, nine, ten, twelve, fourteen and sixteen sides. Polygonal barns constructed before the advent of balloon framing tended to have interior spaces that were more rectangular than circular.

True circular

The "True Circular Era" of round barn construction spanned from 1889 to 1936, overlapping the octagonal era and finally dwindling out as round barns fell out of popularity. True circular round barns began to rise as improvements in construction techniques made their design more practical. As balloon framing, circular silos and truly self-supporting roofs were developed, circular barns superseded polygonal structures and began to be built in greater number. Despite the gains in popularity for circular barns, polygonal barns continued to be built up through the height of the True Circular Era.

End of an era By the 1920s round barn construction had begun to decline in some locations. In Illinois, the popularity of round barns was in part due to the University of Illinois round barns, and round barn construction had tapered off considerably. Several reasons have been given for the decline in the popularity of round barn designs. The standardization of the construction industry and the resulting decline in timber framing following the American Civil War is one possible reason. Another possibility is that the mechanization of American agriculture was more suited to rectangular barn design.

Design

Designed in a distinctive circular shape, many of these barns were meant to take advantage of gravity to move hay from the loft to the cow stable below. In many cases, a silo was constructed to rise up through the round barn's center. The round barn was promoted as a labor-saving design by agricultural colleges as a progressive way to house dairy cattle. In the case of the Pete French Round Barn near Frenchglen, Oregon, the barn was built with a rock wall around an inner stable area, and included a covered run around the wall where horses could be exercised during the harsh high desert winters. The earliest round barns tend to have several flat sides, usually twelve or sixteen. They also tend to be wood-sided while the later round barns are more often faced with brick or glazed tile. The interior design of round barns shifted as well. The early round barns had cattle stanchions on the first floor with the whole of the loft used for hay and feed storage. Later barns possessed a central space which rose up from the ground level through the entire building. The cattle stanchions in this variation of round barn were arranged around a circular manger on the lower level. Above the stanchion level a circular wagon drive allowed hay to be unloaded into the central mow as the wagon circled the perimeter. The final stage of interior design in round barns included a storage silo through the center of the structures. These were not really added until silos became fixtures of American farms. Sometimes the central silo would project up through the roof. Some round barns were built with hay hoods. Advantages and disadvantages claimed for round barns are quite numerous.

Influences

… excerpt ends here. Continue reading the full article.

Illustrations

Round barn: The round barn at Hancock Shaker Village
The round barn at Hancock Shaker Village
Round barn: Thomas Ranck Round Barn in Indiana
Thomas Ranck Round Barn in Indiana
Round barn: Fountaingrove Round Barn in Santa Rosa
Fountaingrove Round Barn in Santa Rosa
Round barn: Tim Thering Octagon Barn (Plain Wisconsin)
Tim Thering Octagon Barn (Plain Wisconsin)
Round barn: A true circular barn in Minnesota
A true circular barn in Minnesota

Worked examples

Example 1 — a first encounter with Round barn

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

In research
Round barn appears in 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 Round barn 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
Round barn is common in secondary-school and first-year university syllabi. It links to neighbouring topics Agricultural buildings, Barns, Rotundas (architecture), so understanding it makes those chapters shorter.
In everyday life
Look for Round barn 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 Round barn in 20 minutes

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

Frequently asked questions

What is Round barn in simple terms?

A round barn is a historic barn design that could be octagonal, polygonal, or circular in plan. Though round barns were not as popular as some other barn designs, their unique shape makes them noticeable.

Why does Round barn matter?

Because it connects several 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 Round barn?

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 Round barn.

Tags

  • Agricultural buildings
  • Barns
  • Rotundas (architecture)
  • Round barns
  • Round buildings

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