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Atmospheric electricity describes the electrical charges in the Earth's atmosphere (or that of another planet ). The movement of charge between the Earth's surface, the atmosphere, and the ionosphere is known as the global atmospheric electrical circuit. Atmospheric electricity is an interdisciplinary topic with a long history, involving ...
Negative refraction. Negative refraction is the electromagnetic phenomenon where light rays become refracted at an interface that is opposite to their more commonly observed positive refractive properties. Negative refraction can be obtained by using a metamaterial which has been designed to achieve a negative value for (electric) permittivity ...
Electric charge is a conserved property: the net charge of an isolated system, the quantity of positive charge minus the amount of negative charge, cannot change. Electric charge is carried by subatomic particles. In ordinary matter, negative charge is carried by electrons, and positive charge is carried by the protons in the nuclei of atoms.
The "first hundred hours" was a play on President Franklin D. Roosevelt's promise for quick action to combat the Great Depression during his "first hundred days" in office. Newt Gingrich , who became speaker of the House in 1995, had a similar 100-day agenda to implement his Contract with America .
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The American singing competition show American Idol (2002–2016; 2018–present) has generated controversy over the years in numerous areas.. Many of the controversies have centered on the show's voting process and results, and in later seasons, gender bias against female contestants, as well as contestant comments.
In physics, charge conservation is the principle that the total electric charge in an isolated system never changes. [1] The net quantity of electric charge, the amount of positive charge minus the amount of negative charge in the universe, is always conserved. Charge conservation, considered as a physical conservation law, implies that the ...
Erich Anderson, best known for playing Felicity’s dad on the drama of the same name, died over the weekend after a battle with cancer. He was 67. Anderson’s wife, actress Saxon Trainor ...