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Stampede

Stampede 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 Stampede rather than just read about it. In short: A stampede () is a situation in which a group of large animals start suddenly running in the same direction, mainly because they are excited or frightened. Although the term is most often applied to animals, there have been cases of humans stampeding from danger too.

Stampede — main illustration
Stampede — illustration

Key takeaways

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

Reference excerpt

A stampede () is a situation in which a group of large animals start suddenly running in the same direction, mainly because they are excited or frightened. Although the term is most often applied to animals, there have been cases of humans stampeding from danger too.

Cattle stampedes

The animal behavior of stampeding was observed by cattle ranchers and cowboys in the American Wild West. Large herds of cattle would be managed across wide-open plains, with no fences to contain them. In these unbounded spaces, cattle were able to run freely, and sometimes the whole herd would take off in the same direction unexpectedly. Cowboys developed techniques to deal with this situation and calm the cattle, to stop the stampede and regain control of their herd. The term "stampede" came from the Mexican Spanish term estampida ('an uproar'). Cattle herds tended to be nervous, and any unusual occurrence, particularly a sudden or unexpected noise, could scare the cattle and kick off a stampede. Things such as a gunshot, a lightning strike, a clap of thunder, someone jumping off a horse, a horse shaking itself, or even a tumbleweed being blown into the herd have been known to cause stampedes. One method used for stopping a stampede is to turn the moving herd into itself so that it runs in wide circles, rather than running off a cliff or into a river. The circle can be made smaller and smaller, eventually forcing the herd to slow down due to lack of space in which to run. Tactics used to make the herd turn into itself include firing a pistol, which creates noise to make the leaders of the stampede turn. Animals who stampede, especially cattle, are less likely to do so after having eaten and watered, and if they are spread out in smaller groups to digest. To further reduce the risk of stampedes, cowboys sometimes sing or whistle to calm the herds disquieted by nightfall. Those on watch at night avoid doing things which could startle the herd and even distance themselves before dismounting a horse or lighting a match. Sometimes humans purposefully induce stampedes, such as some Native Americans who were reported to provoke American bison herds to stampede off a buffalo jump, harvesting the animals after they are killed or incapacitated by the fall.

Human stampedes and crushes

A human stampede, in the sense of a mass of people running in panic, can occur in large or dense crowds of people, typically when a large group of people all try to get away from a perceived danger. Trampling is rarely the cause of fatal injuries in stampede conditions, unless egress is impeded. Human stampedes are rare, and the term "stampede" is often misapplied to phenomena such as crowd collapses and crushes, which are responsible for the majority of fatalities in crowd-related disasters. One prominent difference between the two is that people stampeding have space to run from the danger, whereas people in a crowd crush have nowhere to go. However, there has been little research conducted into what happens during a human stampede, or what exactly causes them to start. While media and popular culture depictions tend to exaggerate dangers associated with stampedes, and popular news reports of such instances often mention "panic", actual instances of mass panic are rare, and panic itself is rarely the cause of fatalities in such events.

Stampede is not only an incorrect term, it is a loaded word, as it assigns blame to the victims for behaving in an irrational, self-destructive, unthinking and uncaring manner, it's pure ignorance, and laziness [...] It gives the impression that it was a mindless crowd only caring about themselves, and they were prepared to crush people. In virtually all these situations, this is not the case, and it is usually the authorities to blame for poor planning, poor design, poor control, poor policing and mismanagement. The truth is that people are only directly crushed by others who have no choice in the matter, and the people who can choose don't know what is going on because they're too far away from the epicentre.

See also List of fatal crowd crushes Rodeo, also called a "stampede" in Canada

References

Illustrations

Stampede: Wild horses stampeding
Wild horses stampeding
Stampede: Cattle stampede
Cattle stampede

Worked examples

Example 1 — a first encounter with Stampede

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

In research
Stampede 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 Stampede 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
Stampede is common in secondary-school and first-year university syllabi. It links to neighbouring topics Ethology, Hazards, so understanding it makes those chapters shorter.
In everyday life
Look for Stampede 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 Stampede in 20 minutes

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

Frequently asked questions

What is Stampede in simple terms?

A stampede () is a situation in which a group of large animals start suddenly running in the same direction, mainly because they are excited or frightened. Although the term is most often applied to animals, there have been cases of humans stampeding from danger too.

Why does Stampede 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 Stampede?

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 Stampede.

Tags

  • Ethology
  • Hazards

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