science

Metroweb

Metroweb 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 Metroweb rather than just read about it. In short: Metroweb S.p.A. (formerly Citytel S.r.l.), also known as Metroweb Milano, was a fiber-optic network operator based in Milan, Italy.

Key takeaways

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

Reference excerpt

Metroweb S.p.A. (formerly Citytel S.r.l.), also known as Metroweb Milano, was a fiber-optic network operator based in Milan, Italy. It was a subsidiary of Metroweb Italia. Founded in 1997, Metroweb was known for its fiber-optic cabling. Historically, it wired Milan, allowing Fastweb's FTTH services and a wide range of dark fiber to operators and companies of all kinds. Operators use a GPON network by renting Metrobit "monofiber", a single fiber of the single-mode type that allows full-duplex at gigabit speeds. In 2017 it was merged into Enel Open Fiber.

History The company was founded on December 12, 1997 as Citytel by AEM with an investment of 200 million lire to build and manage broadband telecommunications networks. In 1999 e.Biscom (later Fastweb) acquired 33% of Citytel, which was sold again to AEM in 2003. In the same year the company became Metroweb. In 2006, the Stirling Square Capital Partners fund and some of the company's managers acquired 76.5% of Metroweb from AEM, paying 232 million euros. In 2011, the Stirling Square Capital Partners fund and A2A sold their shares (12.5% and 87.5% respectively) of Metroweb to the F2i and IMI Investimenti (Intesa Sanpaolo) for 436 million euros. Since 2013, the FTTH offer on Metroweb infrastructure was extended to other operators such as Vodafone and Wind. In June 2016, Enel entered into negotiations with CDP Equity and F2i, aiming at a future integration between Enel Open Fiber and Metroweb. The first step was the subscription of Open Fiber's capital increase, which led to the creation of a 50/50 joint venture between Enel and CDP Equity. Subsequently, on December 20, 2016, Enel Open Fiber acquired the entire capital of Metroweb, followed by the merger by incorporation of Metroweb into Open Fiber, approved by the Board of Directors on January 13, 2017 and completed in the first quarter of 2017.

Illustrations

Worked examples

Example 1 — a first encounter with Metroweb

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

In research: Metroweb 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 Metroweb 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: Metroweb is common in secondary-school and first-year university syllabi. It links to neighbouring topics Companies based in Milan, Government-owned companies of Italy, Italian companies established in 1997, so understanding it makes those chapters shorter.
In everyday life: Look for Metroweb 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 Metroweb in 20 minutes

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

Frequently asked questions

What is Metroweb in simple terms?

Metroweb S.p.A. (formerly Citytel S.r.l.), also known as Metroweb Milano, was a fiber-optic network operator based in Milan, Italy.

Why does Metroweb 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 Metroweb?

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 Metroweb.