engineering

Philosophical Hall

Philosophical 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 Philosophical Hall rather than just read about it. In short: Philosophical Hall is a historic building at 104 S. 5th Street in Center City, Philadelphia, Pennsylvania, United States. Located near Independence Hall, the building has, for over 200 years, been the headquarters of the American Philosophical Society.

Key takeaways

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

Reference excerpt

Philosophical Hall is a historic building at 104 S. 5th Street in Center City, Philadelphia, Pennsylvania, United States. Located near Independence Hall, the building has, for over 200 years, been the headquarters of the American Philosophical Society. It was designated a National Historic Landmark in 1965 for its association with that organization.

Origin

For twenty years after its founding, the American Philosophical Society (APS) had no home of its own, and met in different locations in Philadelphia. In 1783, APS members voted to construct a building in which meetings could be held. The Society originally considered a lot near Arch Street, but a lot became available in the State House yard, now Independence Square. In 1785 the Pennsylvania Legislative Assembly, who met in State House, today known as Independence Hall, voted to give the lot to the Society. The Society immediately began the excavation of the cellar of the new building. However, fundraising proceeded slowly, and the building took four years to construct, the final money needed to complete it coming by way of a loan from Society member Benjamin Franklin.

History

Philosophical Hall is used as a place for APS meetings and for its offices and library. The building was larger than the Society's requirements, and it rented out rooms. Classes for the University of Pennsylvania were held here for several years. Charles Willson Peale located his Philadelphia Museum here for several years. Government also rented space—including the city and the United States District Court for the Eastern District of Pennsylvania. The Society finally ended its practice of renting space in 1934, when a significant bequest from a member placed it on a sound financial footing. The Society considered leaving Philosophical Hall several times, once when the city sought to acquire the building as a courthouse; however, the parties could not agree on a price. In the early 20th century, the Society considered a move to the newly constructed boulevard, the Benjamin Franklin Parkway. Planners hoped to lure intellectual groups to offices on the Parkway. The Society's membership considered this several times, but the 1934 bequest put an end to the discussions; the APS remained at Philosophical Hall. In 1890, the APS built a third story onto Philosophical Hall to house its expanding library, but the addition was considered ugly and was removed in 1949, after the library moved to other space. Philosophical Hall provides space for the APS's offices and houses a museum that is open to the public April through December each year. The twice-yearly meetings moved to Benjamin Franklin Hall, about a block away, in 1993. It is the only privately owned structure on Independence Square.

Illustrations

Worked examples

Example 1 — a first encounter with Philosophical Hall

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

In research: Philosophical 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 Philosophical 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: Philosophical Hall is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1789 establishments in Pennsylvania, 18th-century architecture in the United States, Buildings and structures completed in 1789, so understanding it makes those chapters shorter.
In everyday life: Look for Philosophical 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.

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How to study Philosophical Hall in 20 minutes

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

Frequently asked questions

What is Philosophical Hall in simple terms?

Why does Philosophical 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 Philosophical 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 Philosophical Hall.