Who first described how shock waves are formed?
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What do you know about the Fluorescent Tube?
Is a sewing needle magnetic or non magnetic?
what is overall expansion,hp expansion,ip expansion and axial shaft of a steam turbine?
You want to magnetize a metal. How would you do that?
For what the parabolic dishes are used?
What is the melting point of copper?
Define Umbra?
why does a drop of water thrown into a hot frying pan jump around?
Explain what is different between secondary electron image and back scattered electron image?
How is specific gravity defined?
What is the commercial unit of electric power
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