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Unring the bell

Unring the bell 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 Unring the bell rather than just read about it. In short: In law, unring the bell is an analogy used to suggest the difficulty of forgetting information once it is known. When discussing jury trials, the phrase is sometimes used to describe the judge's instructions to the jury to ignore inadmissible evidence or statements they have heard.

Key takeaways

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

Reference excerpt

In law, unring the bell is an analogy used to suggest the difficulty of forgetting information once it is known. When discussing jury trials, the phrase is sometimes used to describe the judge's instructions to the jury to ignore inadmissible evidence or statements they have heard. It may also be used if inadmissible evidence has been brought before a jury and the judge subsequently declares a mistrial. Commenting on Court TV about the pre-trial release of nearly 200 pages of documents from a hearing on the sexual activities of the accuser in the Kobe Bryant sexual assault case, jury consultant Idgi D'Andrea said, "It's really hard to unring the bell, once that bell has been rung, and ask people to forget what they've heard." In a more recent case, judge Reggie Walton said that he could not "unring the bell" when he declared a mistrial in the Roger Clemens perjury trial.

In Oregon v. Rader One of the earliest reported legal references to unringing a bell can be found in the Oregon Supreme Court case State v. Rader, 62 Ore. 37; 124 P. 195, argued on May 9, 1912, and decided on May 28, 1912. In that case, the defendant, Frederick Rader, indicted as Fritz Rader, was tried and convicted of the crime of arson for allegedly burning two haystacks. The prosecution's theory was that Rader did so in retaliation for the victim reporting another crime (that Rader had cut off the tail of one of the victim's cows). At trial, the victim was permitted to testify concerning Rader's alleged tail-cutting. The court ruled that improper testimony had been admitted and it constituted a reversible error. Chief Justice McBride noted (at p. 40):

While in some cases an express instruction to the jury to disregard testimony injuriously admitted is properly held to cure the error, the courts are cautious in the application of this rule. It is not an easy task to unring a bell, nor to remove from the mind an impression once firmly imprinted there, and the withdrawal of the testimony should be so emphatic as to leave no doubt in the mind of the juror as to the unequivocal repudiation by the court of the erroneously admitted matter, and even then, in a case where the testimony is evenly balanced or contradictory, courts hesitate to sanction such withdrawal, though it seems necessary to permit this course in some instances.

In USA v Lowis The phrase also appears several times in the ruling of the United States Court of Appeals for the Seventh Circuit in the case USA v Lowis, 174 F.3d 881, 885 (7th Cir. 1999). Gary Lowis was arrested for possession of amphetamine and marijuana. Between that arrest and the subsequent trial, he was arrested a second time on similar charges. Before the trial in the United States District Court on the first arrest, the judge granted a defense motion to exclude evidence of the second arrest. However, during testimony, a police witness quoted a statement made by Lowis after the second arrest. The judge later instructed the jury to disregard that portion of the evidence. Lowis appealed his subsequent conviction, arguing, among other things, that the statements were so prejudicial to him that despite the judge's best efforts in instructing the jury to disregard that evidence, as a practical matter it was impossible to "unring the bell". Addressing the evidence admitted in error, the appeals court wrote that that evidence was "not a very loud bell" and the judge's instructions to the jury were adequate to "unring" it. Lowis' conviction was upheld. In its ruling in USA v Lowis, the appeals court provided some background and mentioned a few other phrases (citations removed):

"Unring the bell" is a good analogy which can save a lot of words in making the point. That phrase originated, as far as we can find, in Sandez v. United States [1956], and was elaborated on in Dunn v. United States, which added other pertinent analogies. "After the thrust of the saber it is difficult to forget the wound," was another, and then the most colorful one of all, "If you throw a skunk into the jury box, you can't instruct the jury not to smell it." In the present case there was no skunk thrown in the jury box. As also mentioned in Dunn, "Trials are rarely, if ever, perfect, but gross imperfections should not go unnoticed." We find no gross imperfections which would overpower the district court's instruction to the jury to disregard Lowis' statement.

References

Worked examples

Example 1 — a first encounter with Unring the bell

Start with the simplest possible case. Write down what Unring the bell 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 Unring the bell 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 Unring the bell 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 Unring the bell

In research
Unring the bell 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 Unring the bell 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
Unring the bell is common in secondary-school and first-year university syllabi. It links to neighbouring topics Evidence law, Informal legal terminology, so understanding it makes those chapters shorter.
In everyday life
Look for Unring the bell 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 Unring the bell in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Unring the bell means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Unring the bell out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Unring the bell in simple terms?

In law, unring the bell is an analogy used to suggest the difficulty of forgetting information once it is known. When discussing jury trials, the phrase is sometimes used to describe the judge's instructions to the jury to ignore inadmissible evidence or statements they have heard.

Why does Unring the bell 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 Unring the bell?

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 Unring the bell.

Tags

  • Evidence law
  • Informal legal terminology

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