physics

Rachel Bean

Rachel Bean 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 Rachel Bean rather than just read about it. In short: Rachel Bean is a cosmologist, theoretical astrophysicist, professor of astronomy, and senior associate dean for math and science at the College of Arts and Sciences at Cornell University. Education Bean received her bachelor's degree in natural sciences from the University of Cambridge in 1995.

Key takeaways

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

Reference excerpt

Rachel Bean is a cosmologist, theoretical astrophysicist, professor of astronomy, and senior associate dean for math and science at the College of Arts and Sciences at Cornell University.

Education Bean received her bachelor's degree in natural sciences from the University of Cambridge in 1995. After graduation, she worked in the strategy division at Accenture, and then obtained her master's degree in 1999 and doctorate degree in 2002 in theoretical physics from Imperial College London. Following this, she was a postdoctoral research Fellow for Princeton University before being hired as a professor for Cornell's Department of Astronomy.

Career In 2005, Bean became a faculty member at Cornell University, where her research focuses on cosmological tests of the nature of dark energy and gravity, and the physical origins of primordial inflation, using data from large-scale structure and the cosmic microwave background. She is actively involved in a number of international astronomical surveys, including the Large Synoptic Survey Telescope (LSST), the Dark Energy Spectroscopic Instrument (DESI), and the Euclid space mission. During her time at Cornell University, Bean served as the Senior Associate Dean for the university's Undergraduate Education department, where she was responsible for designing the curriculum, overseeing admissions into the program, and career development, among other things. On July 13, 2023, Bean succeeded Ray Jayawardhana as interim dean of the College of Arts and Sciences at Cornell University, where she was later named the Senior Associate Dean for Math and Science. While she held this position within the university, she was partially responsible for introducing the data science minor to the school's Undergraduate Program.

Involvement

Astronomical Experiments Vera Rubin Telescope (LSST) Dark Energy Spectroscopic Instrument (DESI) Euclid and Roman Space Telescope missions. (NASA)

Sub-Millimeter Experiments Atacama Cosmology Telescope (ACT) Simons Observatory Fred Young Submillimeter Telescope (FYST) During her time spent on her many collaborative experiments, Bean was the collaboration leader on the LSST Dark Energy Science Collaboration, which involved more than 500 international scientists. She also served as a member of the U.S. Astronomy and Astrophysics Advisory Council.

Awards 2007 NASA Group Achievement Award (for the results of the WMAP mission) 2008 Cottrell Scholar Award, Research Corporation. 2010 Presidential Early Career Award for Scientists and Engineers (PECASE) 2012 Gruber Prize in Cosmology, for the results of the Wilkinson Microwave Anisotropy Probe (WMAP) mission 2016 Fellow, American Physical Society 2018 Breakthrough Prize in Fundamental Physics (for the results of the WMAP mission)

References

External links Biography at the Department of Physics, Cornell University

Worked examples

Example 1 — a first encounter with Rachel Bean

Start with the simplest possible case. Write down what Rachel Bean 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 Rachel Bean 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 Rachel Bean 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 Rachel Bean

In research: Rachel Bean 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 Rachel Bean 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: Rachel Bean is common in secondary-school and first-year university syllabi. It links to neighbouring topics 21st-century American astronomers, 21st-century American physicists, 21st-century American women physicists, so understanding it makes those chapters shorter.
In everyday life: Look for Rachel Bean 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 Rachel Bean in 20 minutes

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

Frequently asked questions

What is Rachel Bean in simple terms?

Rachel Bean is a cosmologist, theoretical astrophysicist, professor of astronomy, and senior associate dean for math and science at the College of Arts and Sciences at Cornell University. Education Bean received her bachelor's degree in natural sciences from the University of Cambridge in 1995.

Why does Rachel Bean 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 Rachel Bean?

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 Rachel Bean.