engineering

Sony Rolly

Sony Rolly is a engineering 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 Sony Rolly rather than just read about it. In short: Rolly was an egg-shaped digital robotic music player made by Sony, combining music functions with robotic dancing. It has two wheels that allow it to rotate and spin, as well as two bands of colored LED light running around its edge and cup-like "wings" (or "arms" according to the Sony sonystyle USA website) which can open and close on either end, all of which can be synchronized to the music being played.

Key takeaways

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

Reference excerpt

Rolly was an egg-shaped digital robotic music player made by Sony, combining music functions with robotic dancing. It has two wheels that allow it to rotate and spin, as well as two bands of colored LED light running around its edge and cup-like "wings" (or "arms" according to the Sony sonystyle USA website) which can open and close on either end, all of which can be synchronized to the music being played. Rolly has several operating modes, including Bluetooth functionality. Rolly can play music streamed directly from any Bluetooth-enabled cell phone, computer, or mp3 player. Rolly is able to dance along to streaming music, but the Rolly Choreographer software produces far better results when it analyzes tracks and creates motion files before loading them onto Rolly. The Rolly player uses .mtf files to store motion data along with a particular music track. Pre-made motion files can be downloaded and uploaded from Rolly Go. Rolly also has an accelerometer which detects if the player is lying horizontally or being held upright. When held upright, the track next/previous can be controlled by the top wheel and volume up/down can be controlled by the bottom wheel. Tracks can be shuffled by holding the unit upright, pressing the button once, then shaking the unit up and down (light color changes to purple). You can return to continuous play (light color blue) by simply repeating this process. Rolly has 2 gigabytes of flash memory to store music files. In some markets it came pre-loaded with the track "Boogie Wonderland" by Earth, Wind & Fire. On August 20, 2007, Sony launched an initial teaser advertising campaign for the product. The product was unveiled on September 20, 2007, and went on sale in Japan on September 29, and was for sale at the Sony sonystyle USA website for US$229.99, down from US$399.99. It is available in black and white. Sony offers the "Engrave it." option for this item, and a number of accessories, including "arms" in different colors. Around 2009, the Rolly appeared to be discontinued.

Sony BSP60 In 2015 Sony presented a Bluetooth speaker featuring a similar design and feature set as the Rolly boasted, with the addition of an OLED display and support for voice commands.

References

External links

Fan Page and Support For Rolly Sep 10/50 (Japanese Version) and Sep-30BT Sony Rolly - Era -Viral Video by Claw Films London Head and Neck Sessions vs. Sony Rolly Sony Rolly takes disco to the streets Sony Rolly dances to Footloose

Illustrations

Worked examples

Example 1 — a first encounter with Sony Rolly

Start with the simplest possible case. Write down what Sony Rolly claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, 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 Sony Rolly 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 Sony Rolly 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 Sony Rolly

In research: Sony Rolly appears in engineering 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 Sony Rolly 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: Sony Rolly is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2007 robots, Audio players, Discontinued products, so understanding it makes those chapters shorter.
In everyday life: Look for Sony Rolly 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 Sony Rolly in 20 minutes

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

Frequently asked questions

What is Sony Rolly in simple terms?

Why does Sony Rolly matter?

Because it connects several engineering 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 Sony Rolly?

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 Sony Rolly.