{"id": "card_works_nuclear", "kind": "verified", "title": "A radioactive clock's decay constant", "body": "A nuclide with a ten-second half-life decays at λ = ln2 / T½ ≈ 0.0693 per second — the same relation that dates rock and bone.  Worked & sealed by the engine — λ = ln2 / 10 ≈ 0.0693 s⁻¹.  [HOLDS; open the seal to re-check.]", "source": {"label": "The Works — worked & sealed", "url": "https://narrowhighway.com/s/13356c3cdfdd188f6cb40c173cd2172d975ee36dd8ef09a253d40f0686036418", "domain": "nuclear_physics", "authority_tier": "verified"}, "shelf": "the-works", "box": "physical", "bands": ["the-works", "physical", "nuclear_physics", "nuclear", "physics"], "connections": [{"to_card_id": "card_spine_the-works", "relationship": "member_of", "evidence": "a member of the the-works shelf in the keeping"}, {"to_card_id": "card_k_floor_of_discovery", "relationship": "paves", "evidence": "A worked, engine-sealed demonstration — a paving-stone of the floor of reality."}, {"to_card_id": "card_works_constant_c", "relationship": "adjacent", "evidence": "Neighbouring worked demonstrations in the same part of the volume."}, {"to_card_id": "card_works_thermo_carnot", "relationship": "adjacent", "evidence": "Neighbouring worked demonstrations in the same part of the volume."}], "author": "engine", "created_at": 0.0, "updated_at": 0.0, "visibility": "public", "lifecycle_stage": "public", "volatility": "permanent", "surface": "secular", "generated": false, "subject": "Nuclear physics", "extra": {"seal_hash": "13356c3cdfdd188f6cb40c173cd2172d975ee36dd8ef09a253d40f0686036418", "cite_url": "https://narrowhighway.com/s/13356c3cdfdd188f6cb40c173cd2172d975ee36dd8ef09a253d40f0686036418", "demonstration_id": "works_nuclear", "verdict": "HOLDS"}, "presentation": {"glyph": "•", "kind_label": "physical", "by": "The Works — worked & sealed", "authority": "verified", "posted": "", "standing": "", "link": {"url": "https://narrowhighway.com/s/13356c3cdfdd188f6cb40c173cd2172d975ee36dd8ef09a253d40f0686036418", "host": "narrowhighway.com", "provider": "", "titled": "A radioactive clock's decay constant", "waybill_line": "", "reach": "", "embed": ""}}, "neighbors": [{"id": "card_spine_the-works", "title": "The Works — sealed, worked demonstrations", "relationship": "on the shelf of", "why": "a member of the the-works shelf in the keeping", "href": "/card/card_spine_the-works", "resolved": true}, {"id": "card_k_floor_of_discovery", "title": "The Floor of Discovery — one floor, and by its design the fear of God", "relationship": "paves", "why": "A worked, engine-sealed demonstration — a paving-stone of the floor of reality.", "href": "/card/card_k_floor_of_discovery", "resolved": true}, {"id": "card_works_constant_c", "title": "The speed of light is a defined exact number", "relationship": "adjacent", "why": "Neighbouring worked demonstrations in the same part of the volume.", "href": "/card/card_works_constant_c", "resolved": true}, {"id": "card_works_thermo_carnot", "title": "The Carnot ceiling no engine can beat", "relationship": "adjacent", "why": "Neighbouring worked demonstrations in the same part of the volume.", "href": "/card/card_works_thermo_carnot", "resolved": true}]}