What are isotopes?
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Why ate some clocks slow in summer and fast in winter ?
Why does heat cause matter to expand?
Does an aeroplane overtaking other aeroplane pass through its right or left ?
The light in vehicle become dim when it is starting,why?
What is the Electro magnet ?
Explain the Ray of Light ?
The throbbing caused by sounds of slightly different frequencies that results because of periodic constructive and destructive interference is called:
I just want to convert the voltage into current i.e. suppose I have 750V & 1A AC power then I want to convert it into 12V & 62A DC power only difficulty is that I don't want to use the tranceformer. Simply to say, I want to make the step-down without using tranceformer. Please, give me some ideas. And also I want the relation between Magnetic Induction & Weight of the body can be levitated. Or I can say, how much of magnetic induction requires to lift 500gms weight? I am heartily thankful to you.
Why does the pilot tilt the outer wing of the airplane inward while taking a turn?
What is the velocity of sound air?
Explain the Phosphorescence ?
Who did first record the sound?