Harmful Effects of Electromagnetic Fields
The European Council has called for proposals to identify the biological effects of electromagnetic fields (EMF) in human beings, and other living creatures
Sep 15, 2011
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Dinah JL Novak
Nikola Tesla, the Inventor, the Scientist and the Humble Genius
Without Tesla the wheels of industry would cease to turn, electric cars and trains would stop, our towns would be dark and our mills would be idle and dead
Sep 10, 2011
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Branka Cubrilo
Why Don't We Use Electric Cars?
The idea of using clean, quiet electric cars is an exciting one, but given the current state of technology, the costs may outweigh the benefits.
Jun 13, 2010
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Matthew Holliday
Understanding Volts, Amps, and Ohms in Physics
Physicists measure electric current in amps, electric potential difference in volts, and electrical resistance in ohms.
Jun 3, 2009
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Paul A. Heckert
Functions of a Current Transformer
What is a current transformer and how does a transformer work when used in an AC electrical circuit?
Jun 2, 2009
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Carla Marie Boulianne
topic editor
Paul A. Heckert -
I have a Ph.D. in astrophysics, over 30 years experience teaching physics and astronomy, and over 60 published research articles.