{"query": "The mole — counting the uncountable", "count": 2, "results": [{"id": "card_n_18b53f98f008", "title": "The mole — counting the uncountable", "shelf": "science", "surface": "secular", "snippet": "A mole is 6.02214076×10²³ things — exact since the 2019 SI redefinition — the bridge\nfrom atoms you cannot see to grams you can weigh. The molar mass is just the atomic weights\nadded up, sealed: water", "authority_tier": "engine_derived", "source": "Concordance assay — 2026-07-09", "generated": false}, {"id": "card_c_21d340e25832", "title": "Fission — 82 terajoules in a kilogram ↔ The mole — counting the uncountable", "shelf": "connections", "surface": null, "snippet": "Scaled by Avogadro's number (exact since 2019), sealed: 82 TJ per kilogram  — a concord the card itself states; mined + verified.", "authority_tier": "engine_derived", "source": "Concordance miner — 2026-07-11", "generated": false}]}