CURATED SHELF

Find the conditions for comparison

Color, area, tablespoons, umami. What should you hold equal, and what should you compare? This shelf sharpens your eye for comparison through familiar things.

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Technology

Why does enlarging A4 to A3 take 141%, not 200%?

The paper has twice the area, but its height and width are only about 1.414 times as large. Move between a size chart, a folded sheet, and a copier's display to discover the mathematics hidden in A-series paper.

Text: ~8 min · 2026.11.06Revisit the sources ↗