Why do wind turbines have 3 blades?
Why do high voltage power lines hum or crackle?
How fast is Electricity?
What is the difference between GENERATOR, MOTOR and
ENGINE? 
What is a volt?
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What is the difference between energy and power?
What are the fins or ridges along the sides of insulators?
Do we still use DC power lines?
Why does only 2% of the energy used in an incandescent bulb comes out as visible light?
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When was the biggest outage in North America?
What is the ETO (Energy Trust of
Oregon)? 
Can we harness the power of lightning?
How do other countries electrical generation mix compare to the United States?
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