{"query": "The radio horizon — why towers are tall", "count": 20, "results": [{"id": "card_n_9ab6ee5e792c", "title": "The radio horizon — why towers are tall", "shelf": "science", "surface": "secular", "snippet": "Pure geometry, sealed: from height h the horizon lies at √(2hR) — a 100 m tower\nreaches 35,695 m ≈ 35.7 km: https://narrowhighway.com/s/d6211f4efb2518c6de145decf57f27b131a01c24ce7841853f395b7bc986c323"}, {"id": "card_c_9610a78874eb", "title": "The radio horizon — why towers are tall ↔ FM broadcast (VHF) — three-meter waves, line", "shelf": "connections", "surface": null, "snippet": "Every VHF/FM/TV coverage map is this square root wearing terrain.  — a concord the card itself states; mined + verified."}, {"id": "card_src_word_radio_aerial", "title": "radio aerial", "shelf": "dictionary", "surface": "secular", "snippet": "radio aerial: (noun) omnidirectional antenna comprising the part of a radio receiver by means of which radio signals are received — syn: radio antenna"}, {"id": "card_src_word_radio_antenna", "title": "radio antenna", "shelf": "dictionary", "surface": "secular", "snippet": "radio antenna: (noun) omnidirectional antenna comprising the part of a radio receiver by means of which radio signals are received — syn: radio aerial"}, {"id": "card_src_book_42538", "title": "The Round Towers of Ireland; or, The History of the Tuath-De-Danaans — Henry O'Brien", "shelf": "gutenberg", "surface": "secular", "snippet": "The Round Towers of Ireland; or, The History of the Tuath-De-Danaans, by Henry O'Brien. Subjects: Round towers -- Ireland; Ireland -- Antiquities. Read the full text (public domain): https://www.guten"}, {"id": "card_src_comm_romans_7_1", "title": "Matthew Henry on Romans 7:1", "shelf": "commentary", "surface": "secular", "snippet": "On Romans 7:1 — Among other arguments used in the foregoing chapter to persuade us against sin, and to holiness, this was one (Rom 7:14), that we are not under the law; and this argument is here furth"}, {"id": "card_n_0de24f52987b", "title": "Psalm 43 — Psalm 43", "shelf": "codex", "surface": "witness", "snippet": "Vindicate me, God, and plead my cause against an ungodly nation. Oh, deliver me from deceitful and wicked men. For you are the God of my strength. Why have you rejected me? Why do I go mourning becaus"}, {"id": "card_src_word_twin_towers", "title": "twin towers", "shelf": "dictionary", "surface": "secular", "snippet": "twin towers: (noun) twin skyscrapers 110 stories high in New York City; built 1368 feet tall in 1970 to 1973; destroyed by a terrorist attack on September 11, 2001 — syn: World Trade Center, WTC"}, {"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_n_37d789e01081", "title": "Augustine, Confessions §aug_conf_13_038: But they are fed by these fruits, that are delighted with them; nor are they ...", "shelf": "classics", "surface": "witness", "snippet": "But they are fed by these fruits, that are delighted with them; nor are they delighted with them, whose God is their belly. For neither in them that yield them, are the things yielded the fruit, but w"}, {"id": "card_src_book_6870", "title": "Why we are at war — Woodrow Wilson", "shelf": "gutenberg", "surface": "secular", "snippet": "Why we are at war, by Woodrow Wilson. Subjects: World War, 1914-1918 -- United States. Read the full text (public domain): https://www.gutenberg.org/ebooks/6870"}, {"id": "card_n_15bc196ee012", "title": "Aurelius, Meditations §aur_05_xii: What those things are in themselves, which by the greatest part are esteemed ...", "shelf": "classics", "surface": "secular", "snippet": "What those things are in themselves, which by the greatest part are esteemed good, thou mayest gather even from this. For if a man shall hear things mentioned as good, which are really good indeed, su"}, {"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_src_book_12375", "title": "Masters of Space Morse and the Telegraph; Thompson and the Cable; Bell and the Telephone; Marconi and the Wireless Telegraph; Carty and the Wireless Telephone — Walter Kellogg Towe", "shelf": "gutenberg", "surface": "secular", "snippet": "Masters of Space Morse and the Telegraph; Thompson and the Cable; Bell and the Telephone; Marconi and the Wireless Telegraph; Carty and the Wireless Telephone, by Walter Kellogg Towers. Subjects: Tele"}, {"id": "card_c_m_93f1c00114cc", "title": "La Rochefoucauld §laroch_440: The cause why the majority of women are  shares a section with La Rochefoucauld §laroch_021: Those who are condemned to death affect ", "shelf": "connections", "surface": "secular", "snippet": "La Rochefoucauld §laroch_440: The cause why the majority of women are  shares a section with La Rochefoucauld §laroch_021: Those who are condemned to death affect ."}, {"id": "card_src_book_10809", "title": "Why We Are at War (2nd Edition, revised) — University of Oxford. Faculty of Modern History", "shelf": "gutenberg", "surface": "secular", "snippet": "Why We Are at War (2nd Edition, revised), by University of Oxford. Faculty of Modern History. Subjects: World War, 1914-1918. Read the full text (public domain): https://www.gutenberg.org/ebooks/10809"}, {"id": "card_n_b9cbc4c75cf5", "title": "Psalm 10 — Psalm 10", "shelf": "codex", "surface": "witness", "snippet": "Why do you stand far off, Yahweh? Why do you hide yourself in times of trouble? In arrogance, the wicked hunt down the weak. They are caught in the schemes that they devise. For the wicked boasts of h"}, {"id": "card_src_book_61529", "title": "Why Colored People in Philadelphia Are Excluded from the Street Cars — Benjamin P. (Benjamin Peter) Hunt", "shelf": "gutenberg", "surface": "secular", "snippet": "Why Colored People in Philadelphia Are Excluded from the Street Cars, by Benjamin P. (Benjamin Peter) Hunt. Subjects: United States -- Race relations; Segregation in transportation -- Pennsylvania -- "}, {"id": "card_n_1c110bca64f3", "title": "Barnabas VIII", "shelf": "patristics", "surface": "witness", "snippet": "Now what do you suppose this to be a type of, that a command was given to Israel, that men of the greatest wickedness should offer a heifer, and slay and burn it, and that then boys should take the as"}, {"id": "card_src_book_28050", "title": "Women As Sex Vendors Or, Why Women Are Conservative (Being a View of the Economic Status of Woman) — R. B. (Roscoe Burdette) Tobias", "shelf": "gutenberg", "surface": "secular", "snippet": "Women As Sex Vendors Or, Why Women Are Conservative (Being a View of the Economic Status of Woman), by R. B. (Roscoe Burdette) Tobias. Subjects: Women -- Social and moral questions; Family; Sexual eth"}]}