Labaran Masana'antu
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Tarihin Spotting Scope
A shekara ta 1611, masanin ilmin taurari na Jamus Kepler ya ɗauki ruwan tabarau guda biyu na lenticular a matsayin maƙasudi da kuma ido, ƙararrawa ta inganta a fili, daga baya mutane sun ɗauki wannan tsarin gani a matsayin na'urar hangen nesa na Kepler.A cikin 1757, Du Grand ta hanyar nazarin gilashin da ruwa da watsawa ...Kara karantawa -
Yadda za a zabi na'urar hangen nesa
Yadda za a zabi na'urar hangen nesa abu ne mai wuyar gaske, ba kayan aiki ne kawai ba, har ma yana da kayayyaki masu tsada masu tsada, yawancin mutane suna ƙarƙashin halin da ake ciki na yawan abinci, zaɓi shi azaman kayan aikin wasanni na nishaɗi.Kasance cikin wasanni na waje, kallon wasanni, kallon cabaret,...Kara karantawa