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Q & A: Physics Questions? Ask the Van

Physics Questions? Ask the Van

Question of the Day

"But this is in total contrast to the ohmís law. With the resistance remaining the same, high voltage will induce high currents. How is it then the power lines transmit high voltages with low current????????"
-Kalind Pathak (age 30)

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7164 questions have been answered online since 1998 by volunteers from the Department of Physics at the University of Illinois' Physics Van outreach program. We've tried hard to make this the most reliable physics Q&A site on the Web, but no site is perfect, as we explain on this note. Our Baloney feature provides examples of how shaky many other sites are.

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Questions from kids are especially welcome!