افغُانستُانی ݜچي هوړُاجيلی او آندېي بېخا

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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

ليکندرو

خور تهندرو

NIST

چُاپ تهيلُا حق

CC 0 / public domain

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