[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.starlet.sk\/varovna-sirena-mala-taku-silu-ze-dokazala-vyvolat-dazd\/#Article","mainEntityOfPage":"https:\/\/www.starlet.sk\/varovna-sirena-mala-taku-silu-ze-dokazala-vyvolat-dazd\/","headline":"Varovn\u00e1 sir\u00e9na mala tak\u00fa silu, \u017ee dok\u00e1zala vyvola\u0165 d\u00e1\u017e\u010f","name":"Varovn\u00e1 sir\u00e9na mala tak\u00fa silu, \u017ee dok\u00e1zala vyvola\u0165 d\u00e1\u017e\u010f","description":"Po\u010das obdobia studenej vojny boli obavy z\u00a0pou\u017eitia jadrov\u00fdch zbran\u00ed niektorej zo str\u00e1n ve\u013ek\u00e9, a\u00a0tak sa sna\u017eili by\u0165 na v\u0161etko pripraven\u00e9. Skor\u00e9 varovanie pred z\u00e1sahom vystrelenej","datePublished":"2019-09-09","dateModified":"2019-09-09","author":{"@type":"Person","@id":"https:\/\/www.starlet.sk\/author\/#Person","name":"","url":"https:\/\/www.starlet.sk\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/7ca2d940d0ae3b24fc759c0201b34a0f70fe6611e5abefd5978e89211a09cdfd?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/7ca2d940d0ae3b24fc759c0201b34a0f70fe6611e5abefd5978e89211a09cdfd?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"starlet.sk","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.starlet.sk\/wp-content\/uploads\/img_a306521_w16849_t1569053115.jpg","url":"https:\/\/www.starlet.sk\/wp-content\/uploads\/img_a306521_w16849_t1569053115.jpg","height":0,"width":0},"url":"https:\/\/www.starlet.sk\/varovna-sirena-mala-taku-silu-ze-dokazala-vyvolat-dazd\/","about":["Technika"],"wordCount":440,"articleBody":"Po\u010das obdobia studenej vojny boli obavy z\u00a0pou\u017eitia jadrov\u00fdch zbran\u00ed niektorej zo str\u00e1n ve\u013ek\u00e9, a\u00a0tak sa sna\u017eili by\u0165 na v\u0161etko pripraven\u00e9. Skor\u00e9 varovanie pred z\u00e1sahom vystrelenej zbrane je d\u00f4le\u017eit\u00e9 z\u00a0h\u013eadiska \u010do najvy\u0161\u0161ej mo\u017enosti pre\u017eitia. To mal na pam\u00e4ti aj v\u00fdrobca gigantickej sir\u00e9ny, ktorej \u00falohou bolo pr\u00e1ve v\u010dasn\u00e9 varovanie pred napadnut\u00edm.\u00a0Doposia\u013e najhlasnej\u0161\u00ed pr\u00edstrojSir\u00e9na bola vyroben\u00e1 v\u00a0automobilke Chrysler. Rozmermi bola porovnate\u013en\u00e1 s\u00a0osobn\u00fdm automobilom, jej hmotnos\u0165 bola asi 3 tony, ale nikdy na\u0161\u0165astie nemusela by\u0165 skuto\u010dne pou\u017eit\u00e1. Sk\u00fa\u0161ky v\u0161ak prebehli, a\u00a0pri ka\u017edej pr\u0161alo. Mala toti\u017e tak\u00fa silu, \u017ee pri jej zvuku sa spustil d\u00e1\u017e\u010f. Vybaven\u00e1 bola benz\u00ednov\u00fdm osemvalcov\u00fdm motorom, ktor\u00e9ho v\u00fdkon bol 180 kon\u00ed. Sila jej kompresora bola tak\u00e1 ve\u013ek\u00e1, \u017ee bol schopn\u00fd vytla\u010di\u0165 74 metrov kubick\u00fdch vzduchu za min\u00fatu \u00a0a\u00a0vyvinula pritom tlak 48 kPa. Podstatou vytvoren\u00e9ho zvuku, typick\u00e9ho pre sir\u00e9nu, bol disk s\u00a0dierami, ktor\u00fd sa ot\u00e1\u010dal, cez neho pr\u00fadil vzduch a\u00a0disk ho takpovediac kr\u00e1jal. Kone\u010dn\u00fd zvuk, ktor\u00fd vyd\u00e1vala, mal silu 138 decibelov a\u00a0r\u00fdchlos\u0165 pr\u00fadiaceho vzduchu zo zariadenia dosahovala a\u017e 180 metrov za sekundu. Doposia\u013e nebol vyroben\u00fd stroj s\u00a0hlasnej\u0161\u00edm zvukom.\u00a0\u010cerven\u00e9 p\u00ed\u0161\u0165alkyZ\u00e1merom v\u00fdrobcu bolo pou\u017ei\u0165 ju v\u00a0pr\u00edpade napadnutia jadrov\u00fdmi zbra\u0148ami Spojen\u00fdch \u0161t\u00e1tov zo strany ZSSR ako varovanie pre civiln\u00e9 obyvate\u013estvo. Tento technick\u00fd vyn\u00e1lez, dierovan\u00fd disk, cez ktor\u00fd pr\u00fadi vzduch, sa v\u00fdrobca automobilov Chrysler rozhodol uvies\u0165 do praxe. Husto os\u00eddlen\u00e9 oblasti \u0161t\u00e1tov mali finan\u010dn\u00fa podporu vl\u00e1dy na k\u00fapu tohto varovn\u00e9ho zariadenie, ktor\u00e9ho zvuk bolo mo\u017en\u00e9 po\u010du\u0165 a\u017e do vzdialenosti 40 kilometrov. Dostali prez\u00fdvku \u201eve\u013ek\u00e9 \u010derven\u00e9 p\u00ed\u0161\u0165alky\u201c. Predchodca sir\u00e9ny sa objavil u\u017e po\u010das druhej svetovej vojny a\u00a0po\u017e\u00edvali ju v\u00a0americkom n\u00e1morn\u00edctve na rozh\u00e1\u0148anie hmly, no bola to o nie\u010do slab\u0161ia verzia. Jej hlasitos\u0165 v\u0161ak bol dos\u0165 ve\u013ek\u00fd probl\u00e9m pre n\u00e1morn\u00edkov, ktor\u00fdm ani \u0161tuple do u\u0161\u00ed nepom\u00e1hali, aby ho nepo\u010duli. Dokonca sa stalo, \u017ee z\u00a0oblohy padali omr\u00e1\u010den\u00e9 vt\u00e1ky.U\u017e len v m\u00fazeuV roku 1957 bola vyroben\u00e1 jej posledn\u00e1 verzia, ale sl\u00fa\u017eila e\u0161te aj v\u00a070.tych rokoch. No minim\u00e1lne \u00fadr\u017eba sp\u00f4sobila jej chradnutie, niektor\u00e9 s\u00fa\u010dasti rozobrali motoristi a\u00a0ostatn\u00e9 putovali do zbern\u00fdch surov\u00edn.\u00a0 Z\u00a0p\u00e1r, ktor\u00e9 zostali, je jedna v\u00a0m\u00fazeu v\u00a0Michigane.                                                                                                                                                                                                                                                                                                                                                                                                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