{"query": "Elementary charge = 1.602176634e-19 C", "count": 20, "results": [{"id": "card_ref_pc_elementary_charge", "title": "Elementary charge = 1.602176634e-19 C", "shelf": "physics", "surface": "secular", "snippet": "The elementary charge is 1.602176634e-19 C (exact by definition) — exact since 2019 SI. Verified physical constant.", "authority_tier": "reference", "source": "Verified reference — physical_constants", "readable": false, "generated": false}, {"id": "card_theory_superfluid_vacuum_theory", "title": "Superfluid vacuum theory (the vacuum as a quantum liquid)", "shelf": "theories", "surface": "secular", "snippet": "Superfluid vacuum theory (the vacuum as a quantum liquid) — an engine domain that can touch it: physics. Calibration: map-only — out of scope for sealing — foundational, empirical or interpretive (RES", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (lone-domain seeding)", "readable": false, "generated": false}, {"id": "card_src_fed_elementaryoptics00unitrich", "title": "Elementary optics and applications to fire control instruments", "shelf": "practical", "surface": "secular", "snippet": "Elementary optics and applications to fire control instruments. A United States federal publication, public domain (17 USC 105). The full text (246,324 bytes) is held on the ark; waybill sha256 f81403", "authority_tier": "reference", "source": "US Army field & technical manuals (PD, 17 USC 105)", "readable": true, "generated": false}, {"id": "card_src_etym_elementary", "title": "elementary", "shelf": "etymology", "surface": "secular", "snippet": "elementary: etymology (Webster 1913) — a.: [L. elementarius: cf. F. élémentaire.]. 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Held in the ark; the full text is the TORTOISE — fetched on demand from the Internet Archive, not carried on board. Pr", "authority_tier": "reference", "source": "Internet Archive — ost-engineering-elementaryapplie00alexuoft (public domain)", "readable": true, "generated": false}, {"id": "card_arch_e81e3417ed8d980d", "title": "Elementary manual on applied mechanics ..", "shelf": "trades", "surface": "secular", "snippet": "Elementary manual on applied mechanics .. — a public-domain work on mechanics, published 1910. Held in the ark; the full text is the TORTOISE — fetched on demand from the Internet Archive, not carried", "authority_tier": "reference", "source": "Internet Archive — elementarymanual00jamirich (public domain)", "readable": true, "generated": false}, {"id": "card_src_pd_forgepracticeele00baco", "title": "Forge-practice (elementary)", "shelf": "practical", "surface": "secular", "snippet": "Forge-practice (elementary) (1908). A book returned to the public domain — public domain by copyright expiry (published 1908, pre-1929). The full text (427,182 bytes) is held on the ark; waybill sha25", "authority_tier": "reference", "source": "public domain (copyright expired)", "readable": true, "generated": false}, {"id": "card_arch_3bc01e288fc381db", "title": "An elementary treatise on theoretical mechanics", "shelf": "trades", "surface": "secular", "snippet": "An elementary treatise on theoretical mechanics — a public-domain work on mechanics, published 1907. Held in the ark; the full text is the TORTOISE — fetched on demand from the Internet Archive, not c", "authority_tier": "reference", "source": "Internet Archive — elementarytreati00jeanuoft (public domain)", "readable": true, "generated": false}, {"id": "card_src_pd_elementaryapplie00alexuoft", "title": "Elementary applied mechanics", "shelf": "practical", "surface": "secular", "snippet": "Elementary applied mechanics (1916). 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A book returned to the public domain — archive.org copyright status: NOT_IN_COPYRIGHT. The full text (1,050,300 bytes) is held on the ark; waybill sha", "authority_tier": "reference", "source": "public domain (copyright expired)", "readable": true, "generated": false}, {"id": "card_src_fed_fm21_25", "title": "FM 21-25 Elementary Map and Aerial Photograph Reading 1941", "shelf": "practical", "surface": "secular", "snippet": "FM 21-25 Elementary Map and Aerial Photograph Reading 1941. A United States federal publication, public domain (17 USC 105). 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Held in the ark; the full text is the TORTOISE — fetched on demand from the Inter", "authority_tier": "reference", "source": "Internet Archive — examplesinapplie00ingliala (public domain)", "readable": true, "generated": false}, {"id": "card_arch_24ea1be8ada1fa7a", "title": "Some exercises in farm handicraft for rural elementary schools", "shelf": "trades", "surface": "secular", "snippet": "Some exercises in farm handicraft for rural elementary schools — a public-domain work on handicraft, published 1917. 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