ArticleslgStudy

physics

Remote manipulator

Remote manipulator 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 Remote manipulator rather than just read about it. In short: A remote manipulator, also known as a telefactor, telemanipulator, or waldo (after the 1942 short story "Waldo" by Robert A. Heinlein), is a device which, through electronic, hydraulic, or mechanical linkages, allows a hand-like mechanism to be controlled by a human operator.

Remote manipulator — main illustration
Remote manipulator — illustration

Key takeaways

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

Reference excerpt

A remote manipulator, also known as a telefactor, telemanipulator, or waldo (after the 1942 short story "Waldo" by Robert A. Heinlein), is a device which, through electronic, hydraulic, or mechanical linkages, allows a hand-like mechanism to be controlled by a human operator. The purpose of such a device is usually to move or manipulate hazardous materials for reasons of safety, similar to the operation and play of a claw crane game.

History

In 1945, the company Central Research Laboratories was given the contract to develop a remote manipulator for the Argonne National Laboratory. The intent was to replace devices which manipulated highly radioactive materials from above a sealed chamber or hot cell, with a mechanism which operated through the side wall of the chamber, allowing a researcher to stand normally while working. The result was the Master-Slave Manipulator Mk. 8, or MSM-8, which became the iconic remote manipulator seen in newsreels and movies, such as The Andromeda Strain or THX 1138. Robert A. Heinlein claimed a much earlier origin for remote manipulators. He wrote that he got the idea for the "waldos" used in his story after reading a 1918 article in Popular Mechanics about "a poor fellow afflicted with myasthenia gravis ... [who] devised complicated lever arrangements to enable him to use what little strength he had." A 2021 article in Science Robotics on robots, science fiction, and nuclear accidents discusses how the science fiction waldos are now a major type of real-world robots used in the nuclear industry.

See also Glovebox Dextre Doctor Octopus Teleoperation Telerobotics Master/slave (technology) Avatar (computing) Pantograph Man-Machine

References

External links

Central Research Laboratories web site A video of a Remote Manipulator being used to make an origami crane [1] Master-slave manipulator at Argonne National Laboratory [2] Archived 2008-08-29 at the Wayback Machine Zeleny, Milan (2005). Human systems management: Integrating Knowledge, Management. World Scientific. p. 142. ISBN 981-02-4913-6.

Illustrations

Remote manipulator: Manipulator arms inside the Hot Bay of the Engine Maintenance Assembly and Disassembly Facility at Area 25 of the Nevada Test Site
Manipulator arms inside the Hot Bay of the Engine Maintenance Assembly and Disassembly Facility at Area 25 of the Nevada Test Site
Remote manipulator: Cayce Pentecost, Lyndon B. Johnson, Buford Ellington and Albert Gore Sr operating mechanical hands at a hot cell at Oak Ridge National Laboratory, on October 19, 1958
Cayce Pentecost, Lyndon B. Johnson, Buford Ellington and Albert Gore Sr operating mechanical hands at a hot cell at Oak Ridge National Laboratory, on October 19, 1958

Worked examples

Example 1 — a first encounter with Remote manipulator

Start with the simplest possible case. Write down what Remote manipulator 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 Remote manipulator 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 Remote manipulator 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 Remote manipulator

In research
Remote manipulator 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 Remote manipulator 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
Remote manipulator is common in secondary-school and first-year university syllabi. It links to neighbouring topics Nuclear technology, Robotic manipulation, so understanding it makes those chapters shorter.
In everyday life
Look for Remote manipulator 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.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Remote manipulator in 20 minutes

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

Frequently asked questions

What is Remote manipulator in simple terms?

A remote manipulator, also known as a telefactor, telemanipulator, or waldo (after the 1942 short story "Waldo" by Robert A. Heinlein), is a device which, through electronic, hydraulic, or mechanical linkages, allows a hand-like mechanism to be controlled by a human operator.

Why does Remote manipulator 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 Remote manipulator?

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 Remote manipulator.

Tags

  • Nuclear technology
  • Robotic manipulation

Keep exploring