technology

Questions and Answers

If you hang a chain from a windmill with weights instead of blades, how much weight will it take to generate the same force?

Questions and Answers

How can I calculate the speed?

Questions and Answers

Can you generate 230v alternating current by having a 230v motor rotate its shaft at the same speed?

Questions and Answers

What is the name of the Japanese train that floats on magnets?

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Why is it that a tram can run on one catenary?

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Is it advisable to run the engine of a car parked on the street for a few minutes almost every day to recharge the...

Questions and Answers

Why is the engine of a car that has driven 100,000 km spread over 2 years less worn than the same engine that drives...

Questions and Answers

if accelerated charges produce electromagnetic radiation, what about conservation of energy?