physics

Project Rio Blanco

Project Rio Blanco 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 Project Rio Blanco rather than just read about it. In short: Project Rio Blanco was an underground nuclear test that took place on May 17, 1973 in Rio Blanco County, Colorado, approximately 36 miles (58 km) northwest of Rifle. Three 33-kiloton nuclear devices were detonated nearly simultaneously in a single emplacement well at depths of 5,838, 6,230, and 6,689 feet (1,779, 1,899, and 2,039 m) below ground level.

Key takeaways

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

Reference excerpt

Project Rio Blanco was an underground nuclear test that took place on May 17, 1973 in Rio Blanco County, Colorado, approximately 36 miles (58 km) northwest of Rifle. Three 33-kiloton nuclear devices were detonated nearly simultaneously in a single emplacement well at depths of 5,838, 6,230, and 6,689 feet (1,779, 1,899, and 2,039 m) below ground level. The tests were conducted in fine-grain, low-permeability sandstone lenses at the base of the Fort Union Formation and the upper portion of the Mesaverde Formation. This was the third and final natural-gas-reservoir stimulation test in the Plowshare program, which was designed to develop peaceful uses for nuclear explosives. The two previous tests were Project Gasbuggy in New Mexico and Project Rulison in Colorado. The United States Atomic Energy Commission conducted the test in partnership with CER Geonuclear Corporation and Continental Oil Company. A placard, erected in 1976, now marks the site where the test was conducted. The site is accessible via a dirt road, Rio Blanco County Route 29.

Devices As the creation of tritium was of greatest concern, the three devices used were specially designed to reduce tritium production, creating less than 0.2 grams (0.0071 oz) tritium each, primarily from the medium surrounding the devices. To reduce emplacement costs, the devices were very narrow in diameter, less than 200 millimetres (7.9 in) wide.

References

This article incorporates public domain material from websites or documents of the United States Department of Energy.

Illustrations

Worked examples

Example 1 — a first encounter with Project Rio Blanco

Start with the simplest possible case. Write down what Project Rio Blanco 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 Project Rio Blanco 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 Project Rio Blanco 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 Project Rio Blanco

In research: Project Rio Blanco 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 Project Rio Blanco 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: Project Rio Blanco is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1973 explosions, 1973 in Colorado, American nuclear test sites, so understanding it makes those chapters shorter.
In everyday life: Look for Project Rio Blanco 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 Project Rio Blanco in 20 minutes

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

Frequently asked questions

What is Project Rio Blanco in simple terms?

Why does Project Rio Blanco 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 Project Rio Blanco?

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 Project Rio Blanco.