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Hvordan virker teleskopet? Opfindelse af teleskopet
Teleskopet er en meget imponerende værktøj, der viser meget fjerne objekter, som om de var i nærheden af os. Teleskoper der bruges i dag i mange forskellige størrelser. Ud over de små teleskoper du kan samle op fra legetøjsbutik, er der sorter såsom den Hubble rumteleskopet, som har tonsvis af vægt. Hvis du vil prøve hvad en imponerende enhed teleskopet er, kan du læse et håndskrift på 80 meter væk med en små 20cm teleskop.
Der er to typer af teleskopet i verden. Reflekterende teleskoper bruge glaslinse og spejl-linse system. Selv om arbejdet med begge metoder er det samme, arbejder de på meget forskellige måder.
For at forstå hvordan teleskopet virker, man skal tænke, hvorfor kan vi læse artikel 80 meter væk? Svaret er meget simpelt, fordi størrelsen af incription på vores nethinden er stadig meget lille og kan ikke læses. Hvis vi betragter vores øjne som et digitalt kamera, kan vi se, at teksten på 80 meter fra hele billedet vil fremture på flere pixels og er ret langt fra den størrelse, der kan læse. Hvis vi havde et meget større øje, kunne så vi fokusere på del af billedet og Læs artiklen.
Det er hvad teleskopets arbejder logik er ligesom. Lys, der kommer fra den linse fokus er indsamlet på et tidspunkt af bryde eller reflekterende med spejle og det er fulgte, at det ser meget mere. Linsen er rettet i det menneskelige øje, så vi ikke kan zoome ind eller ud. Hvad vi kan gøre er bare fokusere på et punkt.
Når vi tager et forstørrelsesglas i hånden, skabe vi faktisk en teleskopet mellem luppen og vores eget øje linse.
Her, lys fra linsen er afspejlet i øjet linse og billedet forstærkes nu, som det sker i den lille linse.
Teleskoper har to grundlæggende funktioner, først er hvor godt det får lys, og sidstnævnte ved, hvor meget billedet det tager. Disse også afhænge af renhed, kvalitet, ruhed og de fleste vigtigere størrelsen af linse linser. Langer linsen bruges, jo større billedet er opnået.
Historie
Teleskopet blev første inventered af hollandske Hans Lippershey i 1608 og brugt i militær rumteknik. Baseret på princippet om brydning, er dette teleskop først til at bruge i astronomi. De brugte teleskoper bestående af en kombination af lippershey og Galileo konvekse og conccave objektiver. I 1611 begyndte Kepler at bruge teleskopet udviklet ved hjælp af to konvekse linser. Teleskoper bruge dette system, udviklet af Kepler er stadig bedst.
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English
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Deutsche
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hrvatski
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Nederlands
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Ελληνικά
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हिंदी
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Indonesia
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italiano
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norsk
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Polskie
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Português
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românesc
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русский
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slovenský
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español
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Український
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Melayu
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svenska
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ไทย
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Magyar
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việt
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Suomalainen
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