منابع بازافغانستان آنتې چلوي او اندو ياده کينيس شِراونچې

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The History of Clocks

     
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This resource briefly describes the history of clocks from the sundial to the atomic clock.


About this resource
Available in the following languages
Subject area
HISTORY
Resource level
Any Level
Resource type

Books

لِکِکال

چرکن کيکالا

NIST

جواز/ چاپس حق دارکاليى

CC 0 / public domain

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