physics

Rubén Gerardo Barrera

Rubén Gerardo Barrera is a physics 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 Rubén Gerardo Barrera rather than just read about it. In short: Rubén Gerardo Barrera y Pérez (born 3 February 1943) is a Mexican physicist, professor, and researcher. He is currently professor emeritus at the National Autonomous University of Mexico (UNAM).

Key takeaways

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

Reference excerpt

Rubén Gerardo Barrera y Pérez (born 3 February 1943) is a Mexican physicist, professor, and researcher. He is currently professor emeritus at the National Autonomous University of Mexico (UNAM). His area of specialty is condensed matter physics, and his main interest has been the optical properties of inhomogeneous systems. His recent work has focused on colloidal systems.

Education and Teaching Born in Mexico City, Barrera studied at UNAM in Mexico City, graduating in physics in 1965. In 1971, he obtained a PhD in physics at the University of Illinois Urbana-Champaign under the supervision of Professor Gordon Baym. He spent the next two years in Germany as a post-doctoral researcher at the University of Frankfurt (1972) and the Physikalisches Institut of the Rheinisch-Westfälische Technische Hochschule Aachen in Aachen (1973). He returned to UNAM in Mexico in 1973 as an Assistant Professor in the Institute of Physics, where he has remained since, being made full professor in 1984.

Awards and honors He was awarded the status of Fellow of the American Physical Society, nominated by their Forum on International Physics in 2001 for his significant contributions to the understanding of the optical properties of surfaces and inhomogenous media, as well as for his leadership in the establishment and improvement of relations among physicists in the Americas, and for helping to create the Latin American Federation of Physics Societies. In 2004 he became a Fellow of the Institute of Physics. In 2012 he was awarded the National Prize of the Sciences and the Arts in the area of Physical, Mathematical and Natural Sciences by the Government of Mexico.

References

Worked examples

Example 1 — a first encounter with Rubén Gerardo Barrera

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

In research: Rubén Gerardo Barrera appears in physics 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 Rubén Gerardo Barrera 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: Rubén Gerardo Barrera is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1943 births, 20th-century Mexican physicists, 21st-century Mexican physicists, so understanding it makes those chapters shorter.
In everyday life: Look for Rubén Gerardo Barrera 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Rubén Gerardo Barrera” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Rubén Gerardo Barrera in 20 minutes

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

Frequently asked questions

What is Rubén Gerardo Barrera in simple terms?

Rubén Gerardo Barrera y Pérez (born 3 February 1943) is a Mexican physicist, professor, and researcher. He is currently professor emeritus at the National Autonomous University of Mexico (UNAM).

Why does Rubén Gerardo Barrera matter?

Because it connects several physics 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 Rubén Gerardo Barrera?

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 Rubén Gerardo Barrera.