История физики и техники Учеб. пособие для студентов пед. ин-тов

История физики и техники Учеб. пособие для студентов пед. ин-тов

508 Pages · 1960 · 16.62 MB · Russian
by Кудрявцев & Павел Степанович & Конфедератов & Иван Яковлевич
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“ You often feel tired, not because you've done too much, but because you've done too little of what sparks a light in you. ” ― Anonymous
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