astronomy

Musashi's

Musashi's is a astronomy 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 Musashi's rather than just read about it. In short: The Musashi's are a musical group in Japan, consisting of five cats owned by musician/songwriter Hideo Saitō. The group is affiliated with Stardust Promotion; the contract with Stardust stated that each cat will be given one skipjack tuna approximately valued at 7000 Japanese yen (US$90.00) per song.

Key takeaways

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

Reference excerpt

The Musashi's are a musical group in Japan, consisting of five cats owned by musician/songwriter Hideo Saitō. The group is affiliated with Stardust Promotion; the contract with Stardust stated that each cat will be given one skipjack tuna approximately valued at 7000 Japanese yen (US$90.00) per song.

Members Musashi (ムサシ) - leader; 4-year-old male Norwegian Forest Cat. Youngest but also the fattest. Leo (レオ) - 4-year-old male cat. Quiet crying noise. Luca (ルカ) - 6-year-old female cat. Quiet but high crying noise. Seri (セリ) - main vocal; 12-year-old female cat. Marble (マーブル) - 15-year-old female cat. When the owner picked her up, she was living on the street and in poor health.

History

2007 Toward the end of 2007, Saitō posted a video of the cats on YouTube to celebrate Christmas. In the video, the cats sing to the tune of "Jingle Bells" along with instrumental backup. This video became popular with cat lovers, not only in Japan, but all over the world. The YouTube video had over 1.2 million views by the end of 2007. It was also nominated for a YouTube award in the category of "Best Video of 2007".

2008 In 2008, the Musashi's signed a contract with Stardust Promotion. On March 3, they released their first single covering a popular Japanese song "Hotaru no Hikari". This cover was accompanied by a new original song. The single was a digital download from music.jp. A second single titled "Ichinensei ni Nattara" was released on April 7, 2008.

2015 On September 24, 2015, Seri died at the age of 19. Seri had been battling kidney disease since two years prior. Their blog was opened up to make the announcement.

Discography

Singles 2008-03-03 - Hotaru no Hikari 2008-04-07 - Ichinensei ni Nattara

Worked examples

Example 1 — a first encounter with Musashi's

Start with the simplest possible case. Write down what Musashi's claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, 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 Musashi's 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 Musashi's 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 Musashi's

In research: Musashi's appears in astronomy 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 Musashi's 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: Musashi's is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2007 establishments in Japan, Individual cats in Japan, Japanese pop music groups, so understanding it makes those chapters shorter.
In everyday life: Look for Musashi's 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 Musashi's in 20 minutes

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

Frequently asked questions

What is Musashi's in simple terms?

Why does Musashi's matter?

Because it connects several astronomy 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 Musashi's?

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 Musashi's.