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Object manipulation

Object manipulation 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 Object manipulation rather than just read about it. In short: Object manipulation is a form of dexterity play or performance in which one or more people physically interact with one or more objects. Many object manipulation skills are recognised as circus skills.

Object manipulation — main illustration
Object manipulation — illustration

Key takeaways

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

Reference excerpt

Object manipulation is a form of dexterity play or performance in which one or more people physically interact with one or more objects. Many object manipulation skills are recognised as circus skills. Other object manipulation skills are linked to sport, magic, and everyday objects or practices. Many object manipulation skills use special props made for that purpose: examples include the varied circus props such as balls, clubs, hoops, rings, poi, staff, and devil sticks; magic props such as cards and coins; sports equipment such as nunchaku and footballs. Many other objects can also be used for manipulation skills. Object manipulation with ordinary items may be considered to be object manipulation when the object is used in an unusually stylised or skilful way (such as in flair bartending) or for a physical interaction outside of its socially acknowledged context or differently from its original purpose. Object manipulators may also be practitioners of fire performance, which is essentially object manipulation where specially designed props are soaked in fuel and lit on fire.

Types

There is a very wide range of types of object manipulation. Each type of object manipulation has often been grouped into a category of object manipulation skills. These categories are shown below. However many types of object manipulation do not fit these common categories while others can be seen to belong to more than one category.

Juggling and tossing Juggling is a physical skill involving the manipulation of objects for recreation, entertainment or sport. The most recognizable form of juggling is toss juggling. Juggling can be the manipulation of one object or many objects at the same time, using one or many hands. Jugglers often refer to the objects they juggle as props. The most common props are balls, clubs, or rings. Some jugglers use more dramatic objects such as knives, fire torches or chainsaws. The term juggling can also commonly refer to other prop-based manipulation skills such as diabolo, devil sticks, poi, cigar boxes, shaker cups, contact juggling, hooping, and hat manipulation.

Juggling Contact juggling Toss juggling Chinlone Cigar box (juggling) Devil Sticks Diabolo Flair bartending Footbag Hat manipulation

Spinning and twirling

Spinning and twirling are any of several activities performing spinning, twirling or rotating the spun object for exercise, play or performance. The object twirling can be done directly by one or two hands, the fingers or by other parts of the body. It can also be done indirectly, as in the case of devil or flower sticks, using another object or objects. The origin of twirling can be found in manipulation skills developed for armed combat and in traditional dance. The various twirling skills have become increasingly popular with many associated with circus skills.

Chinese yo-yo Club swinging Devil sticks Diabolo Eskimo yo-yo Fanning Fire staff Flagging Freestyle nunchaku Glowsticking Hooping Hula hooping Padiddling Plate spinning Poi spinning Rhythmic gymnastics Rope dart Trick roping Twirling Baton twirling Color guard and winter guard Yo-yo

Skill toys

Skill toys are purpose-made objects that require manipulative skill for their typical use. Also often used as fidget toys, examples of such toys are:

Astrojax Begleri Kendama Pen spinning Butterfly knife (Balisong) Knucklebones Fingerboard (skateboard)

Dexterity Dexterity skills are seen here as skills that are not usually associated with other categories of object manipulation. Many of these skills use items not usually associated with object manipulation. Examples are dice, cups, and lighters.

Cardistry Card manipulation Clackers Coin manipulation Dice stacking Isolation Knife throwing Shuffling Sport stacking, a.k.a. cup stacking Whipcracking

See also Burning Man, an annual event that attracts object manipulators Chinese jump rope Modern juggling culture

External links

Illustrations

Object manipulation: A boy with a diabolo
A boy with a diabolo
Object manipulation: A combination of pen spinning tricks.
A combination of pen spinning tricks.

Worked examples

Example 1 — a first encounter with Object manipulation

Start with the simplest possible case. Write down what Object manipulation 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 Object manipulation 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 Object manipulation 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 Object manipulation

In research
Object manipulation 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 Object manipulation 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
Object manipulation is common in secondary-school and first-year university syllabi. It links to neighbouring topics Motor control, Object manipulation, Sleight of hand, so understanding it makes those chapters shorter.
In everyday life
Look for Object manipulation 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 Object manipulation in 20 minutes

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

Frequently asked questions

What is Object manipulation in simple terms?

Object manipulation is a form of dexterity play or performance in which one or more people physically interact with one or more objects. Many object manipulation skills are recognised as circus skills.

Why does Object manipulation 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 Object manipulation?

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 Object manipulation.

Tags

  • Motor control
  • Object manipulation
  • Sleight of hand

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