{"id": "card_floor_astronomy", "kind": "note", "title": "Astronomy — orbits, distances, and the cosmos", "body": "Orbits obey Kepler and Newton; distances climb the ladder (parallax, standard candles); the cosmos is governed by general relativity. The orbital arithmetic is already sealed on the astronomy stick; this floor places it, resting on relativity (gravity as geometry, cosmology), Maxwell (starlight and spectroscopy) and the instruments (the measurement). No new stick (tools/seed_astronomy.py).", "source": {"label": "Narrow Highway — astro", "url": "", "authority_tier": "engine_derived", "ref": "stick_astronomy_orbits_and_distances_verified_and_sealed"}, "shelf": "codex", "box": "astro", "bands": ["floor", "astro", "one map"], "subject": "Astronomy — orbits, distances, and the cosmos", "connections": [{"to_card_id": "card_astro_orbits", "relationship": "has_part", "evidence": "a pillar (Orbits - Kepler, Newton, Einstein)"}, {"to_card_id": "card_astro_distances", "relationship": "has_part", "evidence": "a pillar (Distances - the ladder of starlight)"}, {"to_card_id": "card_astro_measurement", "relationship": "has_part", "evidence": "a pillar (Measurement - the astronomical instruments)"}, {"to_card_id": "card_k_floor_of_discovery", "relationship": "part_of", "evidence": "the heavens on the one map, rooted in the Floor of Discovery"}, {"to_card_id": "card_cal_the_day", "relationship": "connects_at", "evidence": "the day is one rotation of the Earth"}, {"to_card_id": "card_cal_the_year", "relationship": "connects_at", "evidence": "the year is one orbit of the Earth around the Sun"}], "author": "engine", "created_at": 0.0, "updated_at": 0.0, "visibility": "public", "lifecycle_stage": "public", "volatility": "permanent", "surface": "secular", "generated": false, "call": "codex.astro", "facets": {"subject": ["floor", "one map"]}, "presentation": {"glyph": "•", "kind_label": "astro", "by": "Narrow Highway — astro", "authority": "engine_derived", "posted": "", "standing": ""}, "neighbors": [{"id": "card_astro_orbits", "title": "Orbits - Kepler, Newton, Einstein", "relationship": "has part", "why": "a pillar (Orbits - Kepler, Newton, Einstein)", "href": "/card/card_astro_orbits", "resolved": true}, {"id": "card_astro_distances", "title": "Distances - the ladder of starlight", "relationship": "has part", "why": "a pillar (Distances - the ladder of starlight)", "href": "/card/card_astro_distances", "resolved": true}, {"id": "card_astro_measurement", "title": "Measurement - the astronomical instruments", "relationship": "has part", "why": "a pillar (Measurement - the astronomical instruments)", "href": "/card/card_astro_measurement", "resolved": true}, {"id": "card_k_floor_of_discovery", "title": "The Floor of Discovery — one floor, and by its design the fear of God", "relationship": "part of", "why": "the heavens on the one map, rooted in the Floor of Discovery", "href": "/card/card_k_floor_of_discovery", "resolved": true}, {"id": "card_cal_the_day", "title": "The day - one rotation", "relationship": "connects at", "why": "the day is one rotation of the Earth", "href": "/card/card_cal_the_day", "resolved": true}, {"id": "card_cal_the_year", "title": "The year - one orbit and the leap rule", "relationship": "connects at", "why": "the year is one orbit of the Earth around the Sun", "href": "/card/card_cal_the_year", "resolved": true}], "house": {"door": "FIND", "kind": "card", "trail": "connections", "seal": "/card/card_floor_astronomy", "next_step": {"do": "follow a connection: what this card rests on, and what rests on it", "door": "FIND", "tool": "card_connections", "params": {"id": "card_floor_astronomy"}}, "ends": "a verdict or a card · the trail · a seal · one next step"}}