0 The force and some technological applications depend on their motion on the effect of force January 26, 2015 by Heba Soffar · Published January 26, 2015 · Last modified November 21, 2019
0 What are the importance of atomic clocks and How do they work? July 3, 2015 by Heba Soffar · Published July 3, 2015 · Last modified June 3, 2020
2 Advantages and disadvantages of ultrasonic waves in detecting industrial defects March 29, 2015 by Heba Soffar · Published March 29, 2015 · Last modified December 20, 2019
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