Categories
Choose a field to open its catalogue. Each shelf offers up to three questions as a starting point.
FIELD 01Space
3 articles to explore →- Why does the Moon turn yet show us the same face? ↗
- From the "sounds" of space to reading a map. ↗
- When was Earth “made”? From rock clocks to clues about oceans ↗
FIELD 02Everyday science
2 articles to explore →- The smell of rain, revisited: can tiny bubbles carry bacteria, too? ↗
- Where does the sky's blue come from? ↗
FIELD 03Living things
4 articles to explore →- An octopus's three hearts work as a team. ↗
- When did life begin? How tiny cells changed a planet ↗
- Why is life so varied? Branching bodies and mass extinctions ↗
FIELD 04Ways of seeing
1 article to explore →Browse all 1 in this fieldHistory
7 articles to explore →- Did an Edo-period “hour” change length between summer and winter? ↗
- Month 12, day 2—then New Year’s Day. Where did the missing dates go? ↗
- When all of Japan says noon, why doesn't the Sun? ↗
Culture & language
5 articles to explore →- If you agree to meet “shiasatte,” will you arrive on the same day? ↗
- Books that open to the right or left: the difference goes beyond the letters ↗
- Why mirrored characters alone do not make readable letterpress text ↗
Food & everyday life
3 articles to explore →- Can light-colored soy sauce contain more salt? ↗
- One tablespoon, three weights: jo-hakuto sugar 9 g, water 15 g, salt 18 g ↗
- Kombu and bonito flakes: why is their umami more than a simple sum? ↗
Technology & systems
6 articles to explore →- How much of a QR Code can be damaged before it stops working? ↗
- Why does enlarging A4 to A3 take 141%, not 200%? ↗
- Two short beeps. Change the gap, and the letters change. ↗
Cross fields through a keyword
Find articles connected by the same idea.
- Earth & humanity7 articles
- Time4 articles
- Language2 articles
- Food culture1 article
- Maps1 article
- Printing2 articles
- Paper1 article
- Moon1 article
- Calendars2 articles
- Sound1 article
- Units1 article
- Sea1 article