🌐 日本語 ｜ English
The canonical originals of “Wakaru” (“It Clicks”) — a reading series for physics-loving high-schoolers and undergraduates. Every series is managed here from now on. Each episode is a self-contained HTML page (serif type + MathJax + live canvas figures + print/PDF ready; the only external dependency is the MathJax CDN).
➡ https://yomei-o.github.io/wakaru_all/
On GitHub’s file pages (github.com/…) the HTML shows up as source. To actually read it and play with the live figures, open the published site (GitHub Pages) above. The links in the tables below also point to the published (rendered) site.
| Series | About | Read (published site) |
|---|---|---|
| Thinking in Waves〔new series, ongoing〕 | Differentiate a sound and it goes high, integrate it and it goes low ── so is every physical constant the integral of something? One line to start from, ending at the order of differentiation itself (65 episodes, 20 parts, ongoing) | open |
| c·t = const, That Clicks〔sequel to Conformal Transformations That Click〕 | c·t = const holds in any universe, so it can be substituted into every equation. Treated as the shortest notation for cosmology, with that shortness measured in bits (50 episodes, 6 parts, complete) | open |
| Conformal Transformations That Click〔sequel to Cosmology That Clicks〕 | Swap the ruler from place to place and see how far the universe can be rewritten. Expansion may just be atoms shrinking (10 episodes, complete + 1 extra) | open |
| Cosmology That Clicks | Read the universe through the speed of light, the fine-structure constant, and gauge | open |
| Relativity That Clicks | Divide everything by c. β · γ · spacetime interval · E=mc² · simultaneity · gravity = curvature (7 episodes, complete) | open |
| Quantum That Clicks | The story of ℏ. S/ℏ separates classical from quantum: grains and waves, path sums, uncertainty, measurement (6 episodes, complete + extras) | open |
| Fields That Click | Why forces travel at the speed of light. Reading fields as dimensionless ratios (8 episodes, complete) | open |
| Black Holes That Click | The diagonal of the cube (c · ℏ · G), read through information and bits: horizons, entropy = bits, holography (6 episodes, complete + extras) | open |
| Renormalization That Clicks | Why the world still works when you throw things away: coarse-graining, decoherence, universality, the renormalization group, the hierarchy problem (7 episodes, complete + extras) | open |
| Temperature That Clicks | Temperature is not a property of matter; k_B is an exchange rate. Negative temperature, imaginary-time periodicity, the Unruh effect (7 episodes, complete + extras) | open |
| Tunneling That Clicks | Getting to the far side of a wall without going over it: walking in imaginary time, why the Sun burns, vacuum decay (7 episodes, complete + extras) | open |
| Refraction That Clicks | Refraction slows light down, so why is the speed of light still invariant? Phase velocity exceeds c; refraction and absorption are one function (7 episodes, complete) | open |
| The Lattice We Build〔the build side〕 | The one series that does not explain but builds: make the tools in an empty file and run them, until a flat lattice turns Mercury (42.9807″/century; 19 episodes + 4 extras, complete) | open |
| Force That Clicks | Peel back what “force” really is — down to fields, geometry, and symmetry | open |
| Mass That Clicks | What mass actually is | open |
| The Universe Is a Computer | Read the cosmos through the lens of computation | open |
| Learning That Clicks | Evolution, learning, and consciousness read through one and the same gradient | open |
| A History of UNIX That Clicks | The history of UNIX | open |
★ Map of the whole collection: The Physics Cube ── take in every series at a glance along the three axes c · ℏ · G (and the fourth axis k_B — “Temperature That Clicks”).
(English folders: kangaeru-nami-en/ · wakaru-ct-en/ · wakaru-kyokei-en/ · wakaru-uchuron-en/ · wakaru-soutai-en/ · wakaru-ryoushi-en/ · wakaru-ba-en/ · wakaru-blackhole-en/ · wakaru-kurikomi-en/ · wakaru-ondo-en/ · wakaru-surinuke-en/ · wakaru-kussetsu-en/ · butsuri-tsukuru-en/ · wakaru-chikara-en/ · wakaru-shitsuryo-en/ · wakaru-uchu-keisanki-en/ · wakaru-gakushuron-en/ · wakaru-unix-en/)
The Japanese originals live in sibling folders — all 21 series. The three marked Japanese only have no English edition yet.
| Series | Read (published site) |
|---|---|
| わかる共形変換（Conformal Transformations That Click） | open |
| 考えるAIと物理（Thinking about AI and Physics — Japanese only） | open |
| 量子重力自由研究（Quantum Gravity: A Free-Research Notebook — Japanese only） | open |
| わかる c·t=一定（c·t = const, That Clicks） | open |
| 物理を簡単にする（Making Physics Simpler — Japanese only） | open |
| 考える波（Thinking in Waves） | open |
| わかる場（Fields That Click） | open |
| わかる相対論（Relativity That Clicks） | open |
| わかる量子（Quantum That Clicks） | open |
| わかるブラックホール（Black Holes That Click） | open |
| わかる繰り込み（Renormalization That Clicks） | open |
| わかる温度（Temperature That Clicks） | open |
| わかるすり抜け（Tunneling That Clicks） | open |
| わかる屈折（Refraction That Clicks） | open |
| つくる格子（The Lattice We Build） | open |
| わかる宇宙論（Cosmology That Clicks） | open |
| わかる力（Force That Clicks） | open |
| わかる質量（Mass That Clicks） | open |
| 宇宙は計算機（The Universe Is a Computer） | open |
| わかる学習論（Learning That Clicks） | open |
| わかるUNIXの歴史（A History of UNIX That Clicks） | open |
Start from the contents page of the published site above and go to each episode. Every individual HTML file just works when opened in a browser (the only external dependency is the MathJax CDN). To print, use each page’s “Print → Save as PDF.”
wakaru-ba-en/ → ../wakaru-chikara-en/index.html), so keep each series in its sibling folder directly under the root.