{"query": "Argon (Ar) — element 18", "count": 20, "results": [{"id": "card_ref_el_018", "title": "Argon (Ar) — element 18", "shelf": "chemistry", "surface": "secular", "snippet": "Atomic number 18. Symbol Ar. Standard atomic weight 39.948. The argon atom carries 18 protons in its nucleus; its place in the periodic table is fixed by that count. Verified reference data.", "authority_tier": "reference", "source": "Verified reference — chemistry", "readable": false, "generated": false}, {"id": "card_tool_sha256", "title": "SHA-256 / BLAKE3 cryptographic hashing", "shelf": "tools", "surface": "secular", "snippet": "SHA-256 / BLAKE3 cryptographic hashing — cryptography. GOOD AT: a fixed-size, collision-resistant fingerprint of any input — same bytes always hash the same, different bytes practically never collide.", "authority_tier": "battle-tested standard", "source": "The Tool Concordance — discern, connect, incorporate", "readable": false, "generated": false}, {"id": "card_src_openstax_chemistry_18_12_occurrence_preparation_and_propert_15b0d34d", "title": "18.12 Occurrence, Preparation, and Properties of the Noble Gases — Chemistry", "shelf": "chemistry", "surface": "secular", "snippet": "18.12\n\nOccurrence, Preparation, and Properties of the Noble Gases\n\nLearning ObjectivesBy the end of this section, you will be able to:\n\nDescribe the properties, preparation, and uses of the noble gase", "authority_tier": "reference", "source": "OpenStax: Chemistry (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_src_openstax_chemistry_2e_18_12_occurrence_preparation_and_propert_06383b4a", "title": "18.12 Occurrence, Preparation, and Properties of the Noble Gases — Chemistry 2e", "shelf": "chemistry", "surface": "secular", "snippet": "18.12\n\nOccurrence, Preparation, and Properties of the Noble Gases\n\nLearning Objectives\nBy the end of this section, you will be able to:\n\nDescribe the properties, preparation, and uses of the noble gas", "authority_tier": "reference", "source": "OpenStax: Chemistry 2e (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_src_openstax_chemistry_atoms_first_18_12_occurrence_preparation_and_propert_15b0d34d", "title": "18.12 Occurrence, Preparation, and Properties of the Noble Gases — Chemistry: Atoms First", "shelf": "chemistry", "surface": "secular", "snippet": "18.12\n\nOccurrence, Preparation, and Properties of the Noble Gases\n\nLearning ObjectivesBy the end of this section, you will be able to:\n\nDescribe the properties, preparation, and uses of the noble gase", "authority_tier": "reference", "source": "OpenStax: Chemistry: Atoms First (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_src_openstax_chemistry_atoms_first_2e_18_12_occurrence_preparation_and_propert_06383b4a", "title": "18.12 Occurrence, Preparation, and Properties of the Noble Gases — Chemistry: Atoms First 2e", "shelf": "chemistry", "surface": "secular", "snippet": "18.12\n\nOccurrence, Preparation, and Properties of the Noble Gases\n\nLearning Objectives\nBy the end of this section, you will be able to:\n\nDescribe the properties, preparation, and uses of the noble gas", "authority_tier": "reference", "source": "OpenStax: Chemistry: Atoms First 2e (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_src_etym_argon", "title": "argon", "shelf": "etymology", "surface": "secular", "snippet": "argon: etymology (Webster 1913) — n.: [Gr. (Chem.) Defn: A substance regarded as an element, contained in the atmosphere and remarkable for its chemical inertness. Rayleigh and Ramsay.]. From Webster'", "authority_tier": "reference", "source": "Webster's Revised Unabridged Dictionary (1913), Project Gutenberg eBook #29765 — public domain", "readable": true, "generated": false}, {"id": "card_src_etym_shirt", "title": "shirt", "shelf": "etymology", "surface": "secular", "snippet": "shirt: etymology (Webster 1913) — n.: [OE. schirte, sherte, schurte; akin to Icel. skyrta, Dan. skiorte, Sw. skjorta, Dan. skiört a petticoat, D. schort a petticoat, an argon, G. schurz, schürze, an a", "authority_tier": "reference", "source": "Webster's Revised Unabridged Dictionary (1913), Project Gutenberg eBook #29765 — public domain", "readable": true, "generated": false}, {"id": "card_theory_vsepr_theory", "title": "VSEPR theory (molecular geometry)", "shelf": "theories", "surface": "secular", "snippet": "VSEPR theory (molecular geometry) — an engine domain that can touch it: molecular_geometry. Calibration: seals — shapes and bond angles predict directly. Valence Shell Electron Pair Repulsion: electro", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_src_etym_dissolution", "title": "dissolution", "shelf": "etymology", "surface": "secular", "snippet": "dissolution: etymology (Webster 1913) — n.: [OE. dissolucioun dissoluteness, F. dissolution, fr. L. dissolutio, fr. dissolvere. See Dissolve.]. From Webster's Revised Unabridged Dictionary (1913), pub", "authority_tier": "reference", "source": "Webster's Revised Unabridged Dictionary (1913), Project Gutenberg eBook #29765 — public domain", "readable": true, "generated": false}, {"id": "card_src_pron_dissolves", "title": "dissolves", "shelf": "pronunciation", "surface": "secular", "snippet": "dissolves: pronounced (ARPABET) D IH0 Z AA1 L V Z. From the CMU Pronouncing Dictionary — the standard machine-readable pronunciations of North American English.", "authority_tier": "reference", "source": "CMU Pronouncing Dictionary (cmudict) — BSD-2-Clause, Carnegie Mellon", "readable": false, "generated": false}, {"id": "card_span_edf3b9c81714", "title": "When the liquid will drop in a continuous thread from the stirrer", "shelf": "sources", "surface": "secular", "snippet": "When  the  liquid  will  drop  in  a  continuous  thread  from \nthe  stirrer,  and  jellifies  on  cooling,  it  is  ready  for  the \n^^  cutting\"  process.  This  consists  in  throwing  in  salt  by", "authority_tier": "primary_pd", "source": "A treatise on chemistry applied to the manufacture of soap and candles; being a thorough exposition, in all their minuti", "readable": true, "generated": false}, {"id": "card_alm_assessment_popper_falsifiability_is_the_method", "title": "Almanac: Falsifiability -- a theory must forbid something; the fork -- demarcation over-applied banishes the metaphysics it cannot test", "shelf": "almanac", "surface": "secular", "snippet": "SITUATION\n  THE KERNEL: Popper got the deep thing right, and it is the engine's own heartbeat. A claim with content forbids something; it sticks its neck out; it can be refuted by a single counterexam", "authority_tier": "reference", "source": "The Almanac — verified-only practical wisdom (sealed)", "readable": false, "generated": false}, {"id": "card_src_openstax_principles_financial_accounting_15_5_discuss_and_record_entries_for_the__14823edd", "title": "15.5 Discuss and Record Entries for the Dissolution of a Partnership — Principles of Accounting, Volume 1: Financial Accounting", "shelf": "economics", "surface": "secular", "snippet": "15.5\n\nDiscuss and Record Entries for the Dissolution of a Partnership\n\nPartnerships dissolve. Sometime the decision is made to close the business. Sometimes there is a bankruptcy. Partner negligence, ", "authority_tier": "reference", "source": "OpenStax: Principles of Accounting, Volume 1: Financial Accounting (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_lesson_read_en_sight_words_set_3", "title": "Lesson: Heart words, set 3 -- of, you, was, for, are", "shelf": "curriculum", "surface": "secular", "snippet": "RULE\n  The BIG tricky ones -- the most irregular high-frequency words, mostly heart. Learn them slowly and on purpose. of: looks like 'off' but the f says /v/ -> /u/ /v/. you: y + 'ou' saying /oo/. wa", "authority_tier": "reference", "source": "The coach's own curriculum — authored units, verbatim", "readable": false, "generated": false}, {"id": "card_domchk_atomic_claimed_configuration", "title": "Atomic: configuration", "shelf": "atomic", "surface": "secular", "snippet": "A worked check in atomic: configuration.\n\nGIVEN\n  atomic_number = 24\n  l = 2\n  n = 3\n  shell_n = 3\n  subshell_l = 2\n\nCLAIMED\n  claimed_configuration = [Ar] 3d5 4s1\n\nTHE ENGINE'S VERDICT\n  atomic.quant", "authority_tier": "reference", "source": "The verifier's own documented relation, and a run this engine performed against it (deterministic; re-runnable with tools/domain_goldens.py)", "readable": false, "generated": false}, {"id": "card_c_188733b0d11f", "title": "Belgic Art. 37: Of the Last Judgment ↔ Belgic Art. 9: The Proof of the Foregoing Ar", "shelf": "connections", "surface": null, "snippet": "Both belong to codex · confession_belgic — a structural sibling link restored from 1.0's nesting (re-verified same section live). Connects the map so no card is left orphaned.", "authority_tier": "engine_derived", "source": "1.0 nesting harvest — 2026-07-11", "readable": false, "generated": false}, {"id": "card_c_691e0e0fc02b", "title": "Belgic Art. 9: The Proof of the Foregoing Ar ↔ Belgic Art. 5: Whence the Holy Scriptures De", "shelf": "connections", "surface": null, "snippet": "Both belong to codex · confession_belgic — a structural sibling link restored from 1.0's nesting (re-verified same section live). Connects the map so no card is left orphaned.", "authority_tier": "engine_derived", "source": "1.0 nesting harvest — 2026-07-11", "readable": false, "generated": false}, {"id": "card_span_b28e1a3e4451", "title": "RETAIL    SELLING   AND    STORE    MANAGEMENT", "shelf": "sources", "surface": "secular", "snippet": "of  how  the  goods  are  made,  the  processes  they  have  gone \nthrough,  the  labor  put  upon  them,  the  care  exercised,  etc. \nIt  may  also  call  for  a  knowledge  of  the  history  of  th", "authority_tier": "primary_pd", "source": "Retail Selling and Store Management (Nystrom, 1914)", "readable": true, "generated": false}, {"id": "card_spine_etymology", "title": "The etymologies — where the words came from", "shelf": "spine", "surface": "secular", "snippet": "The origin of 49,132 English headwords as Webster's Revised Unabridged Dictionary (1913) wrote them: the languages and forms each word came through, in Webster's own abbreviations. Public domain (Proj", "authority_tier": "reference", "source": "Webster's Revised Unabridged Dictionary (1913), Project Gutenberg eBook #29765 — public domain", "readable": true, "generated": false}], "house": {"door": "FIND", "kind": "cards", "trail": "results", "seal": null, "next_step": {"do": "open the top card", "door": "FIND", "tool": "card_get", "params": {"id": "card_ref_el_018"}}, "ends": "a verdict or a card · the trail · a seal · one next step"}}