{"query": "Radio-wave production — the chain leaves the bench", "count": 20, "results": [{"id": "card_n_73d989606f90", "title": "Radio-wave production — the chain leaves the bench", "shelf": "science", "surface": "secular", "snippet": "Drive an antenna with the oscillator and the wave departs at c: λ = c/f — sealed:\nthe 1.591 MHz LC wave is ≈ 188 m long (floor(c·2π·10⁻⁷) = 188): https://narrowhighway.com/s/1ee0d3ed486453eee0967146a5"}, {"id": "card_n_cdb747a427d2", "title": "Electronics — the resonant chain, from Ohm's law to the radio wave", "shelf": "science", "surface": "secular", "snippet": "One sealed chain runs the whole bench: Ohm's law (V = I·R), the capacitor's\nexponential clock (one time constant → 63.2% charged), the diode's exponential gate (current\ndoubles every ln2·nVT ≈ 17.9 mV"}, {"id": "card_c_d931ef4a580f", "title": "Radio-wave production — the chain leaves the ↔ Schumann resonance — the Earth-ionosphere ca", "shelf": "connections", "surface": null, "snippet": "Scale the cavity up from the bench to the planet and the same physics is the Schumann resonance: lightning the oscillator, the Earth-ionosphere gap the tuned circuit.  — a concord the card itself stat"}, {"id": "card_src_book_73845", "title": "Vision by radio, radio photographs, radio photograms — C. Francis (Charles Francis) Jenkins", "shelf": "gutenberg", "surface": "secular", "snippet": "Vision by radio, radio photographs, radio photograms, by C. Francis (Charles Francis) Jenkins. Subjects: Phototelegraphy. Read the full text (public domain): https://www.gutenberg.org/ebooks/73845"}, {"id": "card_c_af8758191b5b", "title": "Schumann resonance — the Earth-ionosphere ca ↔ Radio-wave production — the chain leaves the", "shelf": "connections", "surface": null, "snippet": "a Schumann receiver just a coil and an amplifier — resonance, radio-wave production, the largest instrument on Earth  — a concord the card itself states; mined + verified."}, {"id": "card_src_book_11861", "title": "Radio Boys Cronies; Or, Bill Brown's Radio — Wayne Whipple", "shelf": "gutenberg", "surface": "secular", "snippet": "Radio Boys Cronies; Or, Bill Brown's Radio, by Wayne Whipple. Subjects: Boys -- Juvenile fiction; Radio -- Juvenile fiction; Inventors -- Juvenile fiction; New York (State) -- Juvenile fiction. Read t"}, {"id": "card_n_51ecbfa0bb5a", "title": "The radio spectrum — one law from the cavity to the eye", "shelf": "science", "surface": "secular", "snippet": "Walk the dial upward and nothing changes but the number: λ·f = c the whole\nway. Twelve rungs sealed in ONE receipt: https://narrowhighway.com/s/d6211f4efb2518c6de145decf57f27b131a01c24ce7841853f395b7b"}, {"id": "card_c_b94b0e3c6dfb", "title": "Radio-wave production — the chain leaves the ↔ Oscillator — LC resonance, the bench's own S", "shelf": "connections", "surface": null, "snippet": "Drive an antenna with the oscillator and the wave departs at c: λ = c/f — sealed:\nthe 1.591 MHz LC wave is ≈ 188 m long (floor(c·2π·10⁻⁷) = 188)  — a concord the card itself states; mined + verified."}, {"id": "card_c_4ac8523fa357", "title": "Radio-wave production instantiates the resonant chain", "shelf": "connections", "surface": null, "snippet": "One component of the sealed Ohm-to-radio chain."}, {"id": "card_c_124f83f7a6fc", "title": "Radio-wave production — the chain leaves the ↔ AM broadcast (medium wave) — where the dial ", "shelf": "connections", "surface": null, "snippet": "A half-wave dipole\nfor it spans ~94 m — which is why AM stations use towers and crystal radios use long wires.  — a concord the card itself states; mined + verified."}, {"id": "card_src_word_radio_brightness", "title": "radio brightness", "shelf": "dictionary", "surface": "secular", "snippet": "radio brightness: (noun) the strength of a radio wave picked up by a radio telescope"}, {"id": "card_c_2bdcd43948f0", "title": "The spectrum walk extends radio-wave production across thirteen octaves", "shelf": "connections", "surface": null, "snippet": "The electronics chain launches the wave; the walk follows it from the cavity to the eye."}, {"id": "card_src_word_ground_wave", "title": "ground wave", "shelf": "dictionary", "surface": "secular", "snippet": "ground wave: (noun) a radio wave propagated on or near the earth's surface"}, {"id": "card_src_word_wave_angle", "title": "wave angle", "shelf": "dictionary", "surface": "secular", "snippet": "wave angle: (noun) the angle of arrival (or departure) of a radio wave with respect to the axis of an antenna array"}, {"id": "card_src_word_sky_wave", "title": "sky wave", "shelf": "dictionary", "surface": "secular", "snippet": "sky wave: (noun) a radio wave that is reflected back to earth by the ionosphere or a communications satellite; permits transmission around the curve of the earth's surface"}, {"id": "card_src_word_radio_station", "title": "radio station", "shelf": "dictionary", "surface": "secular", "snippet": "radio station: (noun) station for the production and transmission of AM or FM radio broadcasts"}, {"id": "card_src_book_56695", "title": "The Radio Boys with the Border Patrol — Gerald Breckenridge", "shelf": "gutenberg", "surface": "secular", "snippet": "The Radio Boys with the Border Patrol, by Gerald Breckenridge. Subjects: Radio -- Juvenile fiction. Read the full text (public domain): https://www.gutenberg.org/ebooks/56695"}, {"id": "card_src_book_35594", "title": "The Radio Boys at Ocean Point; Or, The Message that Saved the Ship — Allen Chapman", "shelf": "gutenberg", "surface": "secular", "snippet": "The Radio Boys at Ocean Point; Or, The Message that Saved the Ship, by Allen Chapman. Subjects: Radio -- Juvenile fiction. Read the full text (public domain): https://www.gutenberg.org/ebooks/35594"}, {"id": "card_src_book_14278", "title": "The Radio Boys on the Mexican Border — Gerald Breckenridge", "shelf": "gutenberg", "surface": "secular", "snippet": "The Radio Boys on the Mexican Border, by Gerald Breckenridge. Subjects: Boys -- Juvenile fiction; Radio -- Juvenile fiction. Read the full text (public domain): https://www.gutenberg.org/ebooks/14278"}, {"id": "card_src_book_28735", "title": "The Radio Boys with the Revenue Guards — Gerald Breckenridge", "shelf": "gutenberg", "surface": "secular", "snippet": "The Radio Boys with the Revenue Guards, by Gerald Breckenridge. Subjects: Smuggling -- Juvenile fiction; Radio -- Juvenile fiction. Read the full text (public domain): https://www.gutenberg.org/ebooks"}]}