es (Dunsheath, p. 55).
At this point, new inventions utilizing electrical force began to be produced more frequently. Examples include the electric telegraph, invented by AndrT-Marie AmpFre (1775 1836); the first transformer and generator, developed by Michael Faraday (1791 1867); and the light bulb, devised by Thomas Edison (1847 1931). Understanding what electricity is was key to these developments. So what is electricity?
"Electricity is the flow of electrons or tiny, negatively charged particles" (Koff, p. 69). Electrons are those particles that orbit around the nucleus of an atom and balance the positive charges of the protons contained within that nucleus. "In certain molecules, certain electrons are less powerfully held by the nucleus and are easily dislodged. Consequently, such molecules are electrically conductive" (Koff, p. 69 70). The degree of conductivity largely depends on how easily those electrons are dislodged. In highly conductive materials, such as copper, those electrons are very easily dislodged. In the case of copper, th
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