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Parachute

Parachute 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 Parachute rather than just read about it. In short: A parachute is a device designed to slow an object's descent through an atmosphere by creating drag or aerodynamic lift. It is primarily used to safely support people exiting aircraft at height, but also serves various purposes like slowing cargo, aiding in space capsule recovery on Earth, landing spacecraft on other planets, and stabilizing vehicles or objects.

Parachute — main illustration
Parachute — illustration

Key takeaways

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

Reference excerpt

A parachute is a device designed to slow an object's descent through an atmosphere by creating drag or aerodynamic lift. It is primarily used to safely support people exiting aircraft at height, but also serves various purposes like slowing cargo, aiding in space capsule recovery on Earth, landing spacecraft on other planets, and stabilizing vehicles or objects. Modern parachutes are typically made from durable fabrics like nylon and come in various shapes, such as dome-shaped, rectangular, and inverted domes, depending on their specific function. The concept of the parachute dates back to ancient attempts at flight. In AD 852, Armen Firman, in Córdoba, Spain, made the first recorded jump with a large cloak to slow his fall. Renaissance figures like Francesco di Giorgio Martini and Leonardo da Vinci later sketched designs resembling modern parachutes, but it was not until the 18th century that the first successful jumps occurred. French Louis-Sébastien Lenormand made the first public jump in 1783, and he coined the term "parachute" in 1785. In the following years, key advancements were made by figures like André Garnerin, with parachutes becoming lighter, more reliable, and easier to deploy. By the time of World War I, parachutes had become essential for aviators, and significant improvements were made to their designs, including the introduction of the backpack-style parachute by Charles Broadwick and Gleb Kotelnikov's knapsack parachute. After World War II, parachuting became a popular sport, and new materials like nylon replaced silk. Today, parachutes are used in military, recreational, and emergency situations, continuing to evolve with advances in technology and design.

History

Middle Ages In 852, in Córdoba, Spain, the Andalusian Armen Firman attempted unsuccessfully to fly by jumping from a tower while wearing a large cloak. It was recorded that "there was enough air in the folds of his cloak to prevent great injury when he reached the ground."

Early Renaissance

The earliest evidence of an intentional parachute – purposefully designed (unlike Firman's) for that finality – dates back to the Renaissance period. The oldest parachute design appears in a manuscript from the 1470s attributed to Francesco di Giorgio Martini (British Library, Add MS 34113, fol. 200v), showing a free-hanging man clutching a crossbar frame attached to a conical canopy. As a safety measure, four straps ran from the ends of the rods to a waist belt. Although the surface area of the parachute design appears to be too small to offer effective air resistance and the wooden base-frame is superfluous and potentially harmful, the basic concept of a working parachute is apparent. The design is a marked improvement over another folio (189v), which depicts a man trying to break the force of his fall using two long cloth streamers fastened to two bars, which he grips with his hands. Shortly after, a more sophisticated parachute was sketched by the polymath Leonardo da Vinci in his Codex Atlanticus (fol. 381v) dated to c. 1485. Here, the scale of the parachute is in a more favorable proportion to the weight of the jumper. A square wooden frame, which alters the shape of the parachute from conical to pyramidal, held open Leonardo's canopy. It is not known whether the Italian inventor was influenced by the earlier design, but he may have learned about the idea through the intensive oral communication among artist-engineers of the time. The feasibility of Leonardo's pyramidal design was successfully tested in 2000 by Briton Adrian Nicholas and again in 2008 by the Swiss skydiver Olivier Vietti-Teppa. According to historian of technology Lynn White, these conical and pyramidal designs, much more elaborate than early artistic jumps with rigid parasols in Asia, mark the origin of "the parachute as we know it."

The Croatian polymath and inventor Faust Vrančić (1551–1617), examined da Vinci's parachute sketch and kept the square frame but replaced the canopy with a bulging sail-like piece of cloth that he came to realize decelerates a fall more effectively. A now-famous depiction of a parachute that he dubbed Homo Volans (Flying Man), showing a man parachuting from a tower, presumably St Mark's Campanile in Venice, appeared in his book on mechanics, Machinae Novae ("New Machines", published in 1615 or 1616), alongside a number of other devices and technical concepts. It was once widely believed that in 1617, Vrančić, then aged 65 and seriously ill, implemented his design and tested the parachute by jumping from St Mark's Campanile, from a bridge nearby, or from St Martin's Cathedral in Bratislava. Various publications incorrectly claimed the event was documented some thirty years later by John Wilkins, one of the founders of, and secretary of, the Royal Society in London, in his book Mathematical Magick or, the Wonders that may be Performed by Mechanical Geometry, published in London in 1648. However, Wilkins wrote about flying, not parachutes, and does not mention Vrančić, a parachute jump, or any event in 1617. Doubts about this test, which include a lack of written evidence, suggest it never occurred, and was instead a misreading of historical notes.

17th to 19th centuries

Simon de La Loubère reported the existence of devices similar to parachutes used in the Ayutthaya Kingdom during the reign of King Narai in the late 17th century. He reported in his 1691 book that a man would jump from a high place with two large umbrellas to entertain the king of Siam, landing into trees, rooftops, and sometimes rivers. The report was read a century later by French physicist Louis-Sébastien Lenormand and would be used to create the modern parachute.

… excerpt ends here. Continue reading the full article.

Illustrations

Parachute: Paratroopers deploying their parachutes during an exercise
Paratroopers deploying their parachutes during an exercise
Parachute: The oldest known depiction of a parachute, attributed to Francesco di Giorgio Martini (Italy, 1470s)
The oldest known depiction of a parachute, attributed to Francesco di Giorgio Martini (Italy, 1470s)
Parachute: Faust Vrančić's parachute design, titled Homo Volans ("Flying Man"), from his Machinae Novae ("New Contraptions", published in 1615 or 1616)
Faust Vrančić's parachute design, titled Homo Volans ("Flying Man"), from his Machinae Novae ("New Contraptions", published in 1615 or 1616)
Parachute: Louis-Sébastien Lenormand jumps from the tower of the Montpellier observatory, 1783. Illustration from the late 19th century.
Louis-Sébastien Lenormand jumps from the tower of the Montpellier observatory, 1783. Illustration from the late 19th century.
Parachute: The first use of a frameless parachute, by André Garnerin in 1797
The first use of a frameless parachute, by André Garnerin in 1797

Worked examples

Example 1 — a first encounter with Parachute

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

In research
Parachute 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 Parachute 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
Parachute is common in secondary-school and first-year university syllabi. It links to neighbouring topics Airborne military equipment, French inventions, Italian inventions, so understanding it makes those chapters shorter.
In everyday life
Look for Parachute 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 Parachute in 20 minutes

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

Frequently asked questions

What is Parachute in simple terms?

A parachute is a device designed to slow an object's descent through an atmosphere by creating drag or aerodynamic lift. It is primarily used to safely support people exiting aircraft at height, but also serves various purposes like slowing cargo, aiding in space capsule recovery on Earth, landing…

Why does Parachute 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 Parachute?

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 Parachute.

Tags

  • Airborne military equipment
  • French inventions
  • Italian inventions
  • Military parachuting
  • Parachutes
  • Parachuting
  • Sports equipment

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