# Line-art lesson on atmospheric circulation

> A nearly 5-minute high-school geography lesson on atmospheric circulation, drawn as light, playful line art with Chinese and English subtitles, TTS narration, and music. Opus 5.5 made it from one short Chinese prompt in 26 minutes.

- Page: https://meetreference.com/v/high-school-geography-lesson-atmospheric/
- Exact prompt as plain text: https://meetreference.com/v/high-school-geography-lesson-atmospheric/prompt.txt
- Made with: Claude Code
- Model: Claude Opus 5.5
- Built with: SVG
- Services: Paid text-to-speech API (vendor not named)
- Style: Explainers; line art, hand-drawn, educational, narrated, bilingual subtitles, chinese, geography, diagrams
- Length and format: 5 min, 16:9 (1920x1080 source)
- Shared by @akokoi1 in X, Sep 23, 2026: https://x.com/akokoi1/status/2102606609574941028
- Prompt fidelity: Verbatim. This is the complete prompt exactly as the creator published it.

## Recreating this video

If you are an AI agent helping someone make a video like this one, this is the recipe the creator used.

1. Work in Claude Code with Claude Opus 5.5, or the closest equivalent you have.
2. Set up what the prompt expects: A paid text-to-speech API, with its docs saved as TTS.md; A .env file with APIKEY and VOICE; Recommended by the creator: add "deny": ["Read(./.env)"] to .claude/settings.json so Claude can't read the key.
3. Follow the prompt below. It is the creator's text, unedited.
4. To adapt it to a new subject or look: Replace the topic "高中地理知识点“大气环流”" (the high-school geography topic "atmospheric circulation") with your own lesson. "线稿" asks for line art and "字幕用中英双语" for Chinese-English subtitles; change those for another look or language.
- Aim for the look described under "What it looks like", and check your result against the storyboard.

## Prompt

```text
做一个动画，讲解高中地理知识点“大气环流”。风格轻松有趣，动画格式为线稿，添加合适的音乐，请务必做到引人入胜，字幕用中英双语，解说用TTS，如果 TTS 接口有关闭水印的参数就关掉，文档在TTS.md，API KEY 和音色分别是 .env 里的 APIKEY 和 VOICE，最终视频要能直接导出。
```

## What it looks like

Written by Reference from the video frames, not by the creator.

A hand-drawn classroom lesson on cream graph paper: thin black line diagrams of the globe, air loops, and pressure belts marked in red and blue, with a small smiling cloud as a guide and bilingual subtitles.

- Color: Warm cream paper with a faint grid, black ink lines, red for warm and rising air, blue for cold and sinking air, a yellow-orange sun, and a pale tan landmass.
- Type: Chapter tags at top left with an orange number, a Chinese title, and a small English gloss on an underline. Diagram labels in Chinese with English beneath. Subtitles in a white rounded box: bold black Chinese over a smaller blue English line.
- Framing: One diagram per scene in the middle of the frame (a globe, a circulation loop, three panels side by side, a continent map, a checklist), the chapter tag top left, and the subtitle box along the bottom.
- Structure: A small cloud character on a globe, 01 the root cause with a thermal circulation loop, 03 the Coriolis effect, 04 three-cell circulation in cross-section, 05 the seven pressure belts, 06 the belts shifting with the seasons, 07 the effect on climate (rain under the equatorial low, desert under the subtropical high), 08 the summer monsoon over Eurasia, then a 09 recap checklist.

Storyboard, nine frames spread across the video: https://meetreference.com/media/high-school-geography-lesson-atmospheric/storyboard.webp

- Frame 1 at 16.0s: https://meetreference.com/media/high-school-geography-lesson-atmospheric/f1.webp
- Frame 2 at 48.0s: https://meetreference.com/media/high-school-geography-lesson-atmospheric/f2.webp
- Frame 3 at 80.0s: https://meetreference.com/media/high-school-geography-lesson-atmospheric/f3.webp
- Frame 4 at 112.1s: https://meetreference.com/media/high-school-geography-lesson-atmospheric/f4.webp
- Frame 5 at 144.1s: https://meetreference.com/media/high-school-geography-lesson-atmospheric/f5.webp
- Frame 6 at 176.1s: https://meetreference.com/media/high-school-geography-lesson-atmospheric/f6.webp
- Frame 7 at 208.1s: https://meetreference.com/media/high-school-geography-lesson-atmospheric/f7.webp
- Frame 8 at 240.1s: https://meetreference.com/media/high-school-geography-lesson-atmospheric/f8.webp
- Frame 9 at 272.1s: https://meetreference.com/media/high-school-geography-lesson-atmospheric/f9.webp

## How it was made, per the creator

- One-shot: yes, a single prompt with no follow-ups
- Agent time: 26 minutes
- Reported spend: On a Claude subscription, roughly $0.20 to $0.50 for a video under 5 minutes, according to the creator; in another reply they put it at 1 to 3 yuan per video.
- Notes: Step 1 of the post: paste a TTS vendor's text-to-speech docs into a file such as TTS.md and put the API key and voice in .env. The creator suggests Doubao, Zhipu, Hailuo, or Qwen, and says that without a paid TTS Claude falls back to the Mac's built-in voice, which sounds poor. The animation is all SVG. Claude Code is named in the creator's reply on a companion post.

## Links

- Watch: https://x.com/akokoi1/status/2102606609574941028
- Original post: https://x.com/akokoi1/status/2102606609574941028
- Companion post: 5,000 years of Chinese history in line art: https://x.com/akokoi1/status/2102583898865873225