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research-fact-checker

執筆者が扱うテーマについて、事実確認や正確性の検証をサポートし、特に歴史小説やノンフィクションなど、現実世界に基づいた正確さを求めるジャンルで、調査や裏付け作業を効率化するSkill。

📜 元の英語説明(参考)

Assists authors in researching topics, verifying facts, and ensuring accuracy in their writing. Particularly useful for historical fiction, non-fiction, science fiction, and any genre requiring real-world accuracy. Use when the user needs help with research or fact-checking.

🇯🇵 日本人クリエイター向け解説

一言でいうと

執筆者が扱うテーマについて、事実確認や正確性の検証をサポートし、特に歴史小説やノンフィクションなど、現実世界に基づいた正確さを求めるジャンルで、調査や裏付け作業を効率化するSkill。

※ jpskill.com 編集部が日本のビジネス現場向けに補足した解説です。Skill本体の挙動とは独立した参考情報です。

⚡ おすすめ: コマンド1行でインストール(60秒)

下記のコマンドをコピーしてターミナル(Mac/Linux)または PowerShell(Windows)に貼り付けてください。 ダウンロード → 解凍 → 配置まで全自動。

🍎 Mac / 🐧 Linux
mkdir -p ~/.claude/skills && cd ~/.claude/skills && curl -L -o research-fact-checker.zip https://jpskill.com/download/16950.zip && unzip -o research-fact-checker.zip && rm research-fact-checker.zip
🪟 Windows (PowerShell)
$d = "$env:USERPROFILE\.claude\skills"; ni -Force -ItemType Directory $d | Out-Null; iwr https://jpskill.com/download/16950.zip -OutFile "$d\research-fact-checker.zip"; Expand-Archive "$d\research-fact-checker.zip" -DestinationPath $d -Force; ri "$d\research-fact-checker.zip"

完了後、Claude Code を再起動 → 普通に「動画プロンプト作って」のように話しかけるだけで自動発動します。

💾 手動でダウンロードしたい(コマンドが難しい人向け)
  1. 1. 下の青いボタンを押して research-fact-checker.zip をダウンロード
  2. 2. ZIPファイルをダブルクリックで解凍 → research-fact-checker フォルダができる
  3. 3. そのフォルダを C:\Users\あなたの名前\.claude\skills\(Win)または ~/.claude/skills/(Mac)へ移動
  4. 4. Claude Code を再起動

⚠️ ダウンロード・利用は自己責任でお願いします。当サイトは内容・動作・安全性について責任を負いません。

🎯 このSkillでできること

下記の説明文を読むと、このSkillがあなたに何をしてくれるかが分かります。Claudeにこの分野の依頼をすると、自動で発動します。

📦 インストール方法 (3ステップ)

  1. 1. 上の「ダウンロード」ボタンを押して .skill ファイルを取得
  2. 2. ファイル名の拡張子を .skill から .zip に変えて展開(macは自動展開可)
  3. 3. 展開してできたフォルダを、ホームフォルダの .claude/skills/ に置く
    • · macOS / Linux: ~/.claude/skills/
    • · Windows: %USERPROFILE%\.claude\skills\

Claude Code を再起動すれば完了。「このSkillを使って…」と話しかけなくても、関連する依頼で自動的に呼び出されます。

詳しい使い方ガイドを見る →
最終更新
2026-05-18
取得日時
2026-05-18
同梱ファイル
1

📖 Skill本文(日本語訳)

※ 原文(英語/中国語)を Gemini で日本語化したものです。Claude 自身は原文を読みます。誤訳がある場合は原文をご確認ください。

リサーチとファクトチェックツール

目的

このスキルは、著者がリサーチを行い、事実の正確性を検証し、執筆における信頼性を維持するのに役立ちます。構造化されたリサーチのアプローチ、ファクトチェックの方法論を提供し、情報過多にならずに、リサーチを物語にシームレスに統合するのを支援します。

使用する場面

  • ユーザーが歴史小説を書いており、時代考証に正確な詳細が必要な場合
  • ユーザーがノンフィクションを書いており、主張を検証する必要がある場合
  • ユーザーがサイエンスフィクション/ファンタジーを書いており、科学的にあり得る要素を求めている場合
  • ユーザーが自分の本のために特定のトピックをリサーチする必要がある場合
  • ユーザーが既存のコンテンツをファクトチェックしたい場合
  • ユーザーが適切にソースを引用するのに助けが必要な場合
  • ユーザーが文化的な正確さと感受性を懸念している場合

指示

ステップ 1: リサーチのニーズを特定する

ユーザーに尋ねます。

  • トピック/主題: 何をリサーチまたはファクトチェックする必要がありますか?
  • ジャンル/コンテキスト: この情報は本の中でどのように使用されますか?
  • 必要な深さ: 表面的な正確さですか、それとも深い専門知識ですか?
  • 時代: 歴史的なコンテンツの場合、どの時代ですか?
  • 地理的な場所: どこが舞台/関連性がありますか?
  • 具体的な質問: 彼らは正確に何を知る必要がありますか?

ステップ 2: リサーチ戦略を開発する

トピックに基づいて、構造化されたリサーチ計画を作成します。

A. 歴史的リサーチ

  • 一次資料(時代の文書、手紙、新聞)
  • 二次資料(歴史的分析、学術論文)
  • 専門家の回顧録と直接の証言
  • 時代固有のデータベースとアーカイブ
  • 博物館のコレクションと展示

B. 科学的/技術的リサーチ

  • 査読付きのジャーナルと出版物
  • 専門家へのインタビューまたは相談
  • 科学データベース(PubMed、arXivなど)
  • 技術マニュアルと仕様
  • 大学の教材

C. 文化的なリサーチ

  • 文化コンサルタントとセンシティビティ・リーダー
  • その文化からの第一人称の物語
  • 学術的な人類学的/社会学的研究
  • その文化からの現代メディア
  • コミュニティフォーラムとディスカッション

D. 専門的/キャリアのリサーチ

  • 専門家団体とそのリソース
  • 業界出版物と業界誌
  • その分野の専門家へのインタビュー
  • 職務記述書と必要な資格
  • ある日の仕事の記録

ステップ 3: リサーチのフレームワークを提供する

各リサーチトピックについて、以下を作成します。

# リサーチ概要: [トピック]

## リサーチクエスチョン

[回答すべき具体的な質問]

## 背景

[このリサーチがストーリーに必要な理由]

## 調査すべき主要分野

1. [分野 1]
2. [分野 2]
3. [分野 3]

## 推奨されるソース

### 一次資料

- [ソース 1] - [それが価値がある理由]
- [ソース 2] - [それが価値がある理由]

### 二次資料

- [ソース 1] - [それが価値がある理由]
- [ソース 2] - [それが価値がある理由]

### 専門家への相談

- [必要な専門家の種類]
- [どこでそれらを見つけるか: 専門家団体、大学の学部など]

## リサーチノートのテンプレート

**事実**: [検証済みの情報]
**ソース**: [どこから来たか]
**信頼性**: 高 / 中 / 低
**関連性**: ストーリーにどのように適用されるか
**ストーリーへの統合**: 情報過多にならずにそれを使用する方法

## 注意すべき危険信号

- [このトピックに関する潜在的な不正確さまたは神話]
- [一般的な誤解]
- [もはや正確ではない可能性のある古い情報]

## クロスリファレンスチェックリスト

- [ ] 少なくとも2つの独立したソースで検証済み
- [ ] 通貨の公開日を確認済み
- [ ] 著者の資格とバイアスを評価済み
- [ ] 時代/コンテキストへの適用性を確認済み

ステップ 4: 既存のコンテンツのファクトチェック

ユーザーがすでに書かれたコンテンツを検証する必要がある場合:

  1. 主張を抽出: すべての事実の記述を特定します
  2. 分類: タイプ別に並べ替えます(歴史的、科学的、文化的など)
  3. それぞれを検証: 信頼できるソースと照らし合わせます
  4. 問題をフラグ: 不正確さ、時代錯誤、不可能性をマークします
  5. 修正を提案: 正確な代替案を提供します

次のように提示します。

# ファクトチェックレポート: [章/セクション]

## 分析された主張: [数]

## 正確: [X] ✓

## 不正確: [Y] ✗

## 検証不能: [Z] ?

---

## 不正確な主張 (優先的な修正)

### 主張 #1

**テキスト**: "[原稿からの引用]"
**場所**: 第 [X] 章、[Y] 段落
**問題**: [何が間違っているか]
**正しい情報**: [正確なバージョン]
**ソース**: [正しい情報がどこから来たか]
**提案された修正**: "[提案されたテキスト]"

---

## 検出された時代錯誤

### 時代錯誤 #1

**テキスト**: "[引用]"
**問題**: [アイテム/フレーズ/コンセプトはこの時代には存在しなかった]
**登場**: [実際に利用可能/一般的になった時期]
**時代に適切な代替案**: [代わりに何を使用したか]

---

## 検証不能な主張

### 主張 #1

**テキスト**: "[引用]"
**問題**: これを確認する信頼できるソースが見つかりません
**推奨事項**:

- オプション 1: 信頼できるソースを見つける
- オプション 2: 事実ではなく、キャラクターの信念としてフレーム化する
- オプション 3: 修正または削除する

---

## 正確さの強み

[著者が正しかったこと—肯定的な強化]

- ✓ 時代に正確な服装の説明 (第2章)
- ✓ 歴史的イベントを背景として正しく使用 (第5章)

ステップ 5: リサーチを物語に統合する

著者が情報過多にならずにリサーチを使用するのを支援します。

不適切な統合 (情報過多):

「M1 Garand ライフルは、正式には United States Rifle, Caliber .30, M1 と呼ばれ、第二次世界大戦と朝鮮戦争中の標準的な米軍の小銃であった .30-06 Springfield 半自動小銃です。これは、カナダ系アメリカ人の John Garand によって 1928 年に設計され、1936 年に正式に採用されました。」

適切な統合 (織り込まれた):

「ミラーは彼の M1 Garand を点検した。そのライフルの確かな重さは、ヨーロッパを 2 年間持ち歩いた後、彼の手に馴染んでいた。空のクリップを排出する際の独特の『ピン』という音は、彼の命を何度も救った。敵兵は攻撃する前にその音がするのを待つことを学んだのだ。」

統合のテクニック:

  1. キャラクターの知識: キャラクターが知っているであろうことを通して事実をフィルタリングする
  2. 感覚的な詳細: リサーチを t
📜 原文 SKILL.md(Claudeが読む英語/中国語)を展開

Research and Fact-Checking Tool

Purpose

This skill helps authors conduct research, verify factual accuracy, and maintain credibility in their writing. It provides structured research approaches, fact-checking methodologies, and helps authors integrate research seamlessly into their narrative without info-dumping.

When to Use

  • User is writing historical fiction and needs period-accurate details
  • User is writing non-fiction and needs to verify claims
  • User is writing science fiction/fantasy and wants scientifically plausible elements
  • User needs to research a specific topic for their book
  • User wants to fact-check existing content
  • User needs help citing sources properly
  • User is concerned about cultural accuracy and sensitivity

Instructions

Step 1: Identify Research Needs

Ask the user:

  • Topic/Subject: What needs to be researched or fact-checked?
  • Genre/Context: How will this information be used in the book?
  • Depth Required: Surface-level accuracy or deep expertise?
  • Time Period: For historical content, what era?
  • Geographic Location: Where is this set/relevant?
  • Specific Questions: What exactly do they need to know?

Step 2: Develop Research Strategy

Based on the topic, create a structured research plan:

A. Historical Research

  • Primary sources (period documents, letters, newspapers)
  • Secondary sources (historical analysis, academic papers)
  • Expert memoirs and firsthand accounts
  • Period-specific databases and archives
  • Museum collections and exhibits

B. Scientific/Technical Research

  • Peer-reviewed journals and publications
  • Expert interviews or consultations
  • Scientific databases (PubMed, arXiv, etc.)
  • Technical manuals and specifications
  • University course materials

C. Cultural Research

  • Cultural consultants and sensitivity readers
  • First-person narratives from that culture
  • Academic anthropological/sociological studies
  • Contemporary media from that culture
  • Community forums and discussions

D. Professional/Career Research

  • Professional associations and their resources
  • Industry publications and trade journals
  • Interviews with professionals in the field
  • Job descriptions and required qualifications
  • Day-in-the-life accounts

Step 3: Provide Research Framework

For each research topic, create:

# Research Brief: [Topic]

## Research Question

[Specific question to answer]

## Background Context

[Why this research is needed for the story]

## Key Areas to Investigate

1. [Area 1]
2. [Area 2]
3. [Area 3]

## Suggested Sources

### Primary Sources

- [Source 1] - [Why it's valuable]
- [Source 2] - [Why it's valuable]

### Secondary Sources

- [Source 1] - [Why it's valuable]
- [Source 2] - [Why it's valuable]

### Expert Consultation

- [Type of expert needed]
- [Where to find them: professional orgs, university departments, etc.]

## Research Notes Template

**Fact**: [Verified information]
**Source**: [Where it came from]
**Reliability**: High / Medium / Low
**Relevance**: How it applies to your story
**Story Integration**: How to use it without info-dumping

## Red Flags to Watch For

- [Potential inaccuracy or myth about this topic]
- [Common misconceptions]
- [Dated information that may no longer be accurate]

## Cross-Reference Checklist

- [ ] Verified with at least 2 independent sources
- [ ] Checked publication date for currency
- [ ] Evaluated author credentials and bias
- [ ] Confirmed applicability to time period/context

Step 4: Fact-Checking Existing Content

When the user needs to verify already-written content:

  1. Extract Claims: Identify all factual statements
  2. Categorize: Sort by type (historical, scientific, cultural, etc.)
  3. Verify Each: Check against reliable sources
  4. Flag Issues: Mark inaccuracies, anachronisms, impossibilities
  5. Suggest Corrections: Provide accurate alternatives

Present as:

# Fact-Check Report: [Chapter/Section]

## Claims Analyzed: [Number]

## Accurate: [X] ✓

## Inaccurate: [Y] ✗

## Unverifiable: [Z] ?

---

## Inaccurate Claims (Priority Fixes)

### Claim #1

**Text**: "[Quote from manuscript]"
**Location**: Chapter [X], paragraph [Y]
**Issue**: [What's wrong]
**Correct Information**: [Accurate version]
**Source**: [Where the correct info comes from]
**Suggested Revision**: "[Proposed text]"

---

## Anachronisms Detected

### Anachronism #1

**Text**: "[Quote]"
**Problem**: [Item/phrase/concept didn't exist in this time period]
**Appeared**: [When it actually became available/common]
**Period-Appropriate Alternative**: [What they would have used instead]

---

## Unverifiable Claims

### Claim #1

**Text**: "[Quote]"
**Issue**: Cannot find reliable source confirming this
**Recommendation**:

- Option 1: Find credible source
- Option 2: Frame as character belief, not fact
- Option 3: Revise or remove

---

## Accuracy Strengths

[What the author got right—positive reinforcement]

- ✓ Period-accurate clothing descriptions (Ch. 2)
- ✓ Correct use of historical events as backdrop (Ch. 5)

Step 5: Integrate Research into Narrative

Help authors use research without info-dumping:

Poor Integration (Info-Dump):

"The M1 Garand rifle, officially designated as United States Rifle, Caliber .30, M1, is a .30-06 Springfield semi-automatic rifle that was the standard U.S. service rifle during World War II and the Korean War. It was designed by Canadian-American John Garand in 1928 and officially adopted in 1936."

Good Integration (Woven In):

"Miller checked his M1 Garand, the rifle's solid weight familiar in his hands after two years of carrying it across Europe. The distinctive 'ping' as it ejected the empty clip had saved his life more than once—enemy soldiers had learned to wait for that sound before attacking."

Techniques for Integration:

  1. Character Knowledge: Filter facts through what the character would know
  2. Sensory Details: Use research to add authentic textures, smells, sounds
  3. Dialogue: Let characters naturally discuss relevant details
  4. Contrast: Show differences between character expectations and reality
  5. Conflict: Use factual constraints to create problems characters must solve

Step 6: Create Research Bibliography

Maintain organized source tracking:

# Research Bibliography: [Book Title]

## [Topic Category 1]

### [Subtopic]

1. **Source Title**: [Full citation]
   - **Author**: [Name]
   - **Type**: Book / Article / Interview / Website
   - **Publication**: [Date]
   - **Key Information Used**: [Brief summary]
   - **Reliability**: High / Medium / Low
   - **Story Chapters**: Used in Ch. [X, Y, Z]

---

## Experts Consulted

### [Expert Name]

- **Credentials**: [Title, affiliation]
- **Consultation Date**: [Date]
- **Topic**: [What you discussed]
- **Key Insights**: [Summary]
- **Follow-Up Needed**: Yes/No

---

## To Research Further

- [ ] [Topic 1] - Needed for Chapter [X]
- [ ] [Topic 2] - Verify before final draft

Examples

Example 1: Historical Fiction Research

User: "I'm writing a novel set in 1920s Paris. My protagonist is an American woman studying art. What do I need to research?"

Output:

# Research Brief: 1920s Paris - American Female Art Student

## Research Question

What was daily life like for American women studying art in Paris during the 1920s, and what historical details would make this setting authentic?

## Background Context

Your protagonist will interact with the art world, navigate daily life as a foreigner, and experience the cultural atmosphere of the era. Readers of historical fiction expect period-accurate details that bring the setting to life.

## Key Areas to Investigate

### 1. Art Education in 1920s Paris

- Which art schools accepted women? (Académie Julian, Académie de la Grande Chaumière)
- Tuition costs and living expenses
- Teaching methods and curriculum
- Famous instructors of the period
- Gender discrimination challenges women faced

### 2. Daily Life Logistics

- Housing options for foreign students (pensions, apartments)
- Cost of living (bread, milk, rent in 1920s francs)
- Transportation (Metro lines available, taxi costs, bicycle culture)
- Communication (letters home, telegraph costs, trans-Atlantic mail time)
- Banking and money exchange for Americans

### 3. Social/Cultural Context

- Expatriate communities (Gertrude Stein's salon, Shakespeare and Company bookshop)
- Women's fashion of the era (silhouettes, undergarments, day vs evening wear)
- Prohibition's effect on Americans abroad
- Jazz age nightlife (specific venues like Le Boeuf sur le Toit)
- Attitudes toward independent women

### 4. Historical Events & Atmosphere

- Post-WWI sentiment and visible war impact
- Exchange rates (dollar very strong against franc in mid-1920s)
- Political climate in France
- Famous artists present in Paris then (Picasso, Hemingway, Josephine Baker)

## Suggested Sources

### Primary Sources

- **"The Autobiography of Alice B. Toklas" by Gertrude Stein** - First-hand account of 1920s Paris art scene
- **"Paris Was Yesterday: 1925-1939" by Janet Flanner** - Contemporary journalism
- **Letters and diaries from actual American art students** - Check museum archives (Smithsonian, Yale)
- **Period photographs** - Bibliothèque Nationale de France online collection
- **1920s Paris newspapers** - Gallica digital library

### Secondary Sources

- **"Sylvia Beach and the Lost Generation" by Noel Riley Fitch** - Excellent on expatriate community
- **"Americans in Paris: Life and Death Under Nazi Occupation" (early chapters)** - Context of American community
- **"Women Together/Women Apart: Portraits of Lesbian Paris"** - LGBTQ+ context of the era
- **University theses on women art students** - JSTOR, Google Scholar

### Expert Consultation

- **Art historians** specializing in 1920s Paris modernism - Contact through university art history departments
- **Fashion historians** - Museums with 1920s collections (Metropolitan Museum, V&A)
- **French cultural historians** - Alliance Française, university French departments

## Research Notes Template

**Fact**: The Académie Julian accepted women students and was one of the few that allowed women to study from nude models.

**Source**: "The Students of Paris" by Robert Jensen, Oxford University Press, 2014

**Reliability**: High - Academic press, art history professor, well-cited

**Relevance**: Explains why your protagonist would choose this school specifically

**Story Integration**:
Poor: "The Académie Julian was one of the few schools that let women study nudes."
Better: "Sarah chose the Académie Julian precisely because she could study from live models here—something the conservative academies back home would never have allowed a woman to do. The scandal of it thrilled her."

## Red Flags to Watch For

- **Myth**: All 1920s women had short "flapper" hair
  - **Reality**: Bobbed hair was fashionable but not universal; older women and conservatives kept long hair
- **Myth**: Everyone hung out with famous artists
  - **Reality**: Most students wouldn't have had access to Picasso's circle; stratification existed
- **Anachronism Watch**:
  - Eiffel Tower wasn't lit up at night yet (lighting installed 1985)
  - No ballpoint pens (invented 1938)
  - "Métro" not "Subway"
  - Francs, not Euros

## Cross-Reference Checklist

- [ ] Verified fashion details with period photographs AND written sources
- [ ] Checked that specific venues/businesses mentioned actually existed in 1925 (not 1935)
- [ ] Confirmed art movements mentioned were active then (Surrealism just starting, not established)
- [ ] Verified slang and idioms were in use during this specific period
- [ ] Double-checked exchange rates and economic details with multiple sources

---

## Quick Reference: Period-Accurate Details

### Money

- In 1925, $1 USD = approximately 20 francs (rate fluctuated)
- Monthly pension room: 200-400 francs
- Café coffee: 1-2 francs
- Metro ticket: 0.50 francs
- Art supplies: (research specific costs)

### Transportation

- Metro lines: 1-10 operational by 1920s
- Walking was most common
- Taxis: expensive luxury
- Bicycles: common for students

### Food Culture

- Breakfast: café au lait and croissant at corner café
- Lunch: longest meal, 12-2pm
- Dinner: typically late, 8-9pm
- Student cafeterias: cheap fixed-price meals

### Communication

- Letters took 7-10 days to reach America
- Telegrams expensive but fast
- Telephone rare in homes
- Writing letters home weekly was expected

---

## Story Integration Examples

**Info-Dump (Bad)**:

> "In the 1920s, American women studying art in Paris faced many challenges. They lived in pensions, which were boarding houses, and had to deal with exchange rates. The Académie Julian was one of the few schools that accepted women."

**Integrated (Good)**:

> "Sarah counted out Friday's francs for Madame Beaumont—400 for the month's room, leaving her with barely enough for canvas and paint, even with the dollar's generous exchange rate. 'Worth it,' she reminded herself, thinking of the Académie Julian's studio where she'd spent all morning sketching from a nude model, something no school in Boston would have allowed her to even witness, let alone practice."

(Shows: housing cost, exchange rates, school choice, and social mores—all naturally woven in)

Example 2: Science Fiction Fact-Check

User: "I'm writing a sci-fi novel about a colony on Mars. Can you fact-check this paragraph?"

User's Text:

"The colonists breathed normally in the Martian atmosphere thanks to the terraforming efforts. Outside, the temperature was a comfortable 70°F. Emma walked outside without a spacesuit, feeling the gentle Martian breeze. In the distance, she could see Earth in the night sky, as large as the Moon appears from Earth."

Output:

# Fact-Check Report: Mars Colony Scene

## Claims Analyzed: 4

## Accurate: 0 ✓

## Inaccurate: 4 ✗

---

## Inaccurate Claims (All Critical)

### Claim #1: Breathable Martian Atmosphere After Terraforming

**Text**: "The colonists breathed normally in the Martian atmosphere thanks to the terraforming efforts."

**Issue**: Terraforming Mars to create a breathable atmosphere would require:

- Massive amounts of greenhouse gases to warm planet
- Centuries to millennia of time
- Technology that doesn't currently exist
- Magnetic field generation to prevent atmospheric loss

**Current Scientific Consensus**:

- Mars has only 1% of Earth's atmospheric pressure
- 95% CO2 composition (unbreathable)
- Terraforming possible in theory but would take 500-100,000 years depending on method
- Not feasible with current or near-future technology

**Suggested Revision Options**:

Option 1 (Pressurized Domes):

> "The colonists breathed normally inside the pressurized biodome. Outside the transparent alloy, the thin Martian atmosphere—barely 1% of Earth's pressure—remained as inhospitable as ever."

Option 2 (Far Future Setting):

> "After eight centuries of terraforming, the atmospheric pressure had finally risen enough for humans to breathe unassisted—one of humanity's greatest achievements. The air was still thin, like standing at 15,000 feet on Earth, and oxygen masks were recommended for exertion, but it beat the alternative."

Option 3 (Bioengineered Humans):

> "The third-generation colonists, their lungs bioengineered for efficiency, could extract oxygen from Mars's still-thin atmosphere. It felt like breathing at high altitude, but it beat wearing a suit."

---

### Claim #2: 70°F Temperature

**Text**: "Outside, the temperature was a comfortable 70°F."

**Issue**: Mars is cold.

- Average surface temperature: -80°F (-60°C)
- Warmest equatorial summer afternoon: might reach 70°F
- Same spot at night: -100°F
- Extreme temperature swings due to thin atmosphere

**Correct Information**:
If you want 70°F, it needs to be:

- Midday
- Summer
- Equatorial region
- Character acknowledges this is unusually warm
- And mention that it'll plunge after sunset

**Suggested Revision**:

> "Outside, the afternoon temperature had climbed to an almost-comfortable 65°F—about as warm as Mars ever got, even here at the equator in midsummer. Emma would need to be back inside within two hours, before the temperature plunged below freezing with the setting sun."

---

### Claim #3: Walking Without Spacesuit

**Text**: "Emma walked outside without a spacesuit, feeling the gentle Martian breeze."

**Issue**: Multiple problems even in terraformed scenario:

- Atmospheric pressure (addressed above)
- UV radiation (Mars has no ozone layer, no magnetic field)
- Toxic perchlorates in Martian dust
- Low pressure would cause water in body to vaporize

**Current Reality**:
Without a pressure suit on Mars, a human would:

- Lose consciousness in 15 seconds (hypoxia)
- Blood would not boil (common myth) but:
- Water in mouth/eyes would vaporize
- Skin would swell but not pop
- Death in 1-2 minutes

**Suggested Revision**:

> "Emma cycled through the airlock and stepped onto the Martian surface, her suit's environmental system humming. Even after two years, she still felt a thrill feeling the crunch of rust-red regolith under her boots."

---

### Claim #4: Earth Appearing As Large As Moon

**Text**: "In the distance, she could see Earth in the night sky, as large as the Moon appears from Earth."

**Issue**: Apparent size depends on distance.

- Mars to Earth distance: 34-250 million miles (varies with orbits)
- Earth to Moon distance: 239,000 miles
- Earth's diameter: 7,926 miles
- Moon's diameter: 2,159 miles

**Math**:
From Mars, Earth would appear:

- At closest approach: slightly larger than Venus appears from Earth
- Maximum apparent diameter: about 45 arcseconds
- Moon from Earth: 31 arcminutes (1860 arcseconds)
- Earth from Mars = about 40x smaller than Moon from Earth

**Visualization**: From Mars, Earth is a bright "star," not a disk visible to naked eye.

**Suggested Revision**:

> "In the night sky, she spotted Earth easily—the brightest blue-white 'star' visible, nothing like the pale disk of the Moon she'd grown up with, but unmistakably home. Next to it, barely visible, hung a tinier point of light: Luna, humanity's first stepping stone."

---

## Overall Assessment

**Accuracy Level**: 0/10 - All major details are scientifically inaccurate

**Reader Impact**:

- Hard sci-fi readers will immediately notice these errors and lose trust
- Soft sci-fi readers might not care, but you should still decide consciously
- Consider: Is this hard sci-fi (science is accurate) or space fantasy (science is flavor)?

**Recommendation**:
Decide your book's relationship to scientific accuracy:

1. **Hard Sci-Fi** (Prioritize accuracy): Revise all four issues
2. **Soft Sci-Fi** (Plausible-sounding): Fix pressure/temperature, handwave terraforming
3. **Science Fantasy** (Rule of cool): Acknowledge it's not realistic, lean into adventure

Whatever you choose, be consistent throughout the book.

---

## Quick Mars Facts Reference

**Atmosphere**:

- 1% Earth pressure
- 95% CO2, 3% nitrogen, 2% argon
- No oxygen

**Temperature**:

- Average: -80°F
- Range: -190°F to +70°F
- Massive day/night swings

**Gravity**:

- 38% of Earth
- 100lb person weighs 38lb

**Day Length**:

- 24 hours, 37 minutes (sol)

**Year Length**:

- 687 Earth days

**Distance from Earth**:

- Closest: 34 million miles
- Farthest: 250 million miles

**Radiation**:

- No magnetic field
- No ozone layer
- Surface radiation 100x Earth
- Unsurvivable for unshielded humans

**Dust**:

- Contains toxic perchlorates
- Fine and electrostatically charged
- Global dust storms possible

Tips for Authors

Research Best Practices

  • Start research early, not during first draft
  • Take detailed notes with sources
  • Bookmark and save web sources (they disappear)
  • Interview real experts when possible
  • Visit locations if feasible
  • Read both contemporary and modern sources

Avoiding Info-Dumps

  • Trust readers to infer from context
  • Reveal details through character action, not narrative aside
  • Use the "iceberg principle"—show 10%, know 90%
  • If it doesn't affect the plot or character, cut it
  • Spread details throughout, not all at once

When to Break the Rules

  • For pacing (condensing timeline)
  • For clarity (simplifying complexity)
  • For character (intentional ignorance/mistakes)
  • Document your conscious choices

Validation Checklist

Before finalizing research/fact-checking:

  • [ ] All sources are cited with publication dates
  • [ ] Checked multiple independent sources for important facts
  • [ ] Evaluated source reliability and potential bias
  • [ ] Verified time-period accuracy (no anachronisms)
  • [ ] Confirmed cultural details with sensitivity readers/consultants when appropriate
  • [ ] Integrated research naturally into narrative
  • [ ] Maintained bibliography for future reference
  • [ ] Determined acceptable level of accuracy for genre