Realizatori: Anichitoae Florina Iftode Florentina Ilişanu Andreea Luca Ramona Lungu Ionuţ
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Transcript of Realizatori: Anichitoae Florina Iftode Florentina Ilişanu Andreea Luca Ramona Lungu Ionuţ
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Realizatori: Anichitoae Florina
Iftode FlorentinaIlişanu Andreea
Luca RamonaLungu Ionuţ
Moşneagu Diana
Clasa a IX-a C
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Introducere
Instrumente optice Microscopul
Instrumentul optic foloseşte una sau mai multe lentile sau oglinzi curbe pentru a produce tipul de imagine cerut. Mai jos vă vom prezenta microscopul:
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Microscopul este instrumentul optic care mareşte obiecte foarte
mici. Dacă are doar o lentilă, acesta este un microscop simplu (lupa). Dacă are mai multe lentile, este un microscop compus.
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Informaţii ştiinţifice şi descoperire
În 1590, un optician german, Zacharias Janssen a construit primul microscop.El a descoperit că o lentilă convergentă asezată în apropierea unei lupe îi poate mari imaginea.
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Microscoapele optice pot mari de maxim 2000 de ori.În 1932, inginerii germani Max Knoll si Ernst Ruska construiesc primul microscop de transmisie electronică. Primul microscop electronic putea mări imaginea obiectelor doar de 400 de ori.
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Microscoapele electronice moderne pot ajunge la măriri de un million de ori. Lentilele microscopului electronic sunt electrice sau magnetice, după cum devine fasciculul de electroni are loc în câmpul magnetic sau electric
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Microscoapele protonice si ionice pot mări imaginea obiectelor de 100 milioane de ori.
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MERSUL RAZELOR DE LUMINĂ ÎNTR-UN MICROSCOP
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SCHEMA MICROSCOPULUI OPTIC
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Aplicaţii în viaţa reală a microscopului
Microscopul este un instrument cu ajutorul căruia putem observa obiectele foarte mici pentru ochiul liber. El este ultilizat în medicină, biologie, geologie etc.Ştiinţa care se ocupă cu cercetarea obiectelor mici,folosind un astfel de instrument se numeşte microscopie.
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PRIMUL MICROSCOP
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Microscop cu structura de bază din lemn
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Microscop cu montura din metal şi fildeş
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Microscop construit în întregime din lemn
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Microscop cu reglare a claritaţii prin fir metalic
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Microscop portabil cu montura metalică si caseta de transport
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Primul microscop format din mai multe lentile
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Microscop din lemn cu suport tripod metalic
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Microscop cu corpul din lemn
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Microscop cu suport din metale preţioase
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Microscop cu structura apropiată de cele moderne
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Microscop portabil cu caseta de transport din lemn
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Microscop modern
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AMEOBA
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DIATOMEE
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EUGLENA VERDE
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PARAMECIUL
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PICIORUL ŢANŢARULUI