engineering

Mackenzie Hall

Mackenzie Hall 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 Mackenzie Hall rather than just read about it. In short: Mackenzie Hall, previously the Essex County Courthouse, is a cultural centre and former courthouse in the Sandwich neighbourhood of Windsor, Ontario, Canada. Built by Alexander Mackenzie from a design by Albert Jordan between 1854 and 1855, it was used as a courthouse until 1963 and a meeting place for the Essex County Council until 1975.

Key takeaways

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

Reference excerpt

Mackenzie Hall, previously the Essex County Courthouse, is a cultural centre and former courthouse in the Sandwich neighbourhood of Windsor, Ontario, Canada. Built by Alexander Mackenzie from a design by Albert Jordan between 1854 and 1855, it was used as a courthouse until 1963 and a meeting place for the Essex County Council until 1975. Acquired by the City of Windsor in 1982, it was converted into a cultural centre. The two-storey limestone building has been expanded and renovated several times.

Location and description Mackenzie Hall is located at 3277 Sandwich Street in the Sandwich neighbourhood of Windsor, Ontario, near the corner of Brock and Sandwich streets. The Hall is described by Canada's Historic Places as "a visually dominating presence" that provides "the most important component of the heritage character in the neighbourhood." The area has several extant buildings from the 19th century, including the former Essex County Registry Office (1876) and St. John's Anglican Church (1819–1871). Mackenzie Hall is a two-storey building in rough-hewn limestone with sandstone trimming. It is built in the classic revival style with Italianate influences, using what Canada's Historic Places describes as "stately lines and at an impressive scale and massing". The symmetrical front façade is marked by four pilasters as well as a Palladian entrance and heavy cornice. The first storey is elevated and accessed through a staircase, which is flanked by stones bearing the signatures of the architect and the builder. Inside Mackenzie Hall are numerous late-19th century furnishings. These include a golden oak bench, witness box, barristers' table, and clerk's desk that date to an 1892 remodelling. Other artefacts in the building include the original cornerstone and an 1860 silent wall clock. The grounds include a commemorative plaque providing a brief history of the building.

History

Courthouse Mackenzie Hall was built in the 1850s as a replacement for a dilapidated brick courthouse that had been built three decades prior; the new building would serve Essex County, which had been established in 1850 through the division of the Western District of Upper Canada. The Detroit-based architect Albert Jordan was retained for the project in 1853, with the Sarnia-based Mackenzie Builders winning the contract two years later. The firm, led by future Canadian prime minister Alexander Mackenzie, laid the cornerstone on 24 May 1854. Construction was completed in 1855, at which time Cochrane Sculptors carved the Essex County seal above the courthouse's main entrance. The new Essex County Courthouse featured town council chambers on the second storey, which were used by the Sandwich council after the town's incorporation in 1858. Jail cells were initially located on the first floor, under the council chambers, but relocated to a cell block designed by Gordon W. Lloyd in 1870 after the previous courthouse was demolished. Executions were conducted at the site from 1862, when the escaped slave George Williams was hanged for the murder of his wife. Hangings continued through 1943, when two Americans who had murdered a Windsor proprietor became the last people executed at the courthouse. Among the lawyers who practised at the courthouse was Delos Davis, who became the first Black Canadian King's Counsel in 1910.

A new registrar's office designed by Lloyd was built by Hypolite Rheaume between 1876 and 1877 where the former courthouse had stood. Renovations completed before 1891 replaced the courthouse's metal roof with one of slate, and in 1892 the Detroit firm Mason and Rice remodelled the courthouse's interior. Work continued through the 20th century. In 1924, after a fire devastated the 1870-built cell block, the architectural firm Nichols, Sheppard & Masson designed a new jail as well as several additions that tripled the size of the courthouse. Another addition, designed by David J. Cameron, was constructed between 1947 and 1950; this coincided with several modifications to the existing structure, including the partitioning of the council chambers. Air conditioning was installed by Sheppard, Masson, Brand & Langlois in 1961, which resulted in the ceilings being lowered. Also in the mid-20th century, the Essex County Courthouse was repurposed. The Superior Court of Justice vacated in 1948, with the Essex County Council – which had relocated to the Sandwich Town Hall – returning to the courthouse that year. In 1963, other court activities relocated to new buildings in downtown Windsor, with Judge Bruce J.S. Macdonald presiding over the last hearings. Parts of the building, including the tunnel between the jailhouse and court, were demolished. Several new tenants, including the county assessor and the welfare document, occupied the former courthouse through the end of the decade. In 1975, the Essex County council relocated to Essex, and the building was sold to the Ministry of Government Services for $123,000. The building was sealed.

Designation and cultural centre

… excerpt ends here. Continue reading the full article.

Illustrations

Worked examples

Example 1 — a first encounter with Mackenzie Hall

Start with the simplest possible case. Write down what Mackenzie Hall 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 Mackenzie Hall 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 Mackenzie Hall 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 Mackenzie Hall

In research: Mackenzie Hall 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 Mackenzie Hall 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: Mackenzie Hall is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1855 establishments in Canada, Alexander Mackenzie (politician), Buildings and structures completed in 1855, so understanding it makes those chapters shorter.
In everyday life: Look for Mackenzie Hall 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 Mackenzie Hall in 20 minutes

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

Frequently asked questions

What is Mackenzie Hall in simple terms?

Why does Mackenzie Hall 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 Mackenzie Hall?

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 Mackenzie Hall.