The ancient Greeks first conceived of the notion of an atom, which was their word for indivisible. Modern theory divides the atom into the proton, electron, and neutron. These particles all differ in weight and charge. The proton has a positive charge,...

Rub a balloon or styrofoam drinking cup against a wool sweater. It will then stick to a wall (at least on a dry day) or pick up small bits of paper. Why? The answer leads to the concept of electric charge. Electromagnetic forces are one of the four...

The concept of electric charges goes back more than 2,000 years to the ancient Greeks. Their word for amber, a resin that had the ability to hold a static electric charge, was elektron, from which the word electricity is derived. In more recent times,...

Electric charge is a fundamental conserved property of some subatomic particles, which determines their electromagnetic interaction. Electrically charged matter is influenced by, and produces, electromagnetic fields. The interaction between a moving...

Two pieces of legislation that passed in the Legislature last session pushes Maine to rethink the way electricity is sold in Maine, marking a measured retreat from the nation's most far-reaching electricity restructuring. In an opinion piece this week, Central Maine Power's president, Sara...

Demand from new power plants drives gas turbines into another record year. GAS TURBINE HISTORY was made during the calendar year 2001. The value of gas turbines produced worldwide during the year-both aviation and non-aviation combined-reached an all-time high, just short of $50...

It's a discouraging sight for busy travelers: throngs of people huddled around a lone power outlet at an airport gate, all of them hoping to recharge their BlackBerries, laptops and other gadgets.Across the country, airports are trying to bring precious energy more conveniently to millions...

State biologists hope electric shocks can help them remove a voracious, non-native catfish from a south Georgia river where it is devouring native fish.A crew of three DNR biologists is on the Satilla River three or four days a week, sending an electrical charge into...