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Scientists have long been intrigued by the unique electrical and magnetic properties of tourmaline. Benjamin Franklin, the inventor of the lightning rod, possessed at least one tourmaline stone and is said to have used it in his experiments. | Scientists have long been intrigued by the unique electrical and magnetic properties of tourmaline. Benjamin Franklin, the inventor of the lightning rod, possessed at least one tourmaline stone and is said to have used it in his experiments. | ||
In 1880, Pierre Curie, co-recipient of the Nobel Prize in Physics (with his wife, the famous Marie Curie), discovered with his brother Jacques, a mineralogist, that tourmaline carries a weak electric charge when it is heated (pyroelectricity) or when pressure is applied to its surface (piezoelectricity). In 1986 research in Japan confirmed that tourmaline carries a faint but constant electric charge of 0.06mA. No matter how small tourmaline is ground or crushed, it is still capable of conveying an electric current. An electrical charge enables Tourmaline to produce far infrared photon energy, negative ions, and alpha waves. | In 1880, Pierre Curie, co-recipient of the Nobel Prize in Physics (with his wife, the famous Marie Curie), discovered with his brother Jacques, a mineralogist, that tourmaline carries a weak electric charge when it is heated (pyroelectricity) or when pressure is applied to its surface (piezoelectricity). In 1986 research in Japan confirmed that tourmaline carries a faint but constant electric charge of 0.06mA. No matter how small tourmaline is ground or crushed, it is still capable of conveying an electric current. An electrical charge enables Tourmaline to produce far infrared photon energy, negative ions, and alpha waves.[1][2] | ||
===Unique Properties of Black Tourmaline=== | ===Unique Properties of Black Tourmaline=== | ||
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====Pyroelectricity==== | ====Pyroelectricity==== | ||
Pyroelectricity (from the Greek pyr, fire, and electricity) is the ability of certain materials to generate a temporary voltage when they are heated or cooled. The change in temperature modifies the positions of the atoms slightly within the crystal structure, such that the polarization of the material changes. | Pyroelectricity (from the Greek pyr, fire, and electricity) is the ability of certain materials to generate a temporary voltage when they are heated or cooled. The change in temperature modifies the positions of the atoms slightly within the crystal structure, such that the polarization of the material changes.[3] | ||
====Piezoelectric Effect==== | ====Piezoelectric Effect==== | ||
Piezoelectric Effect is the ability of certain materials to generate an electric charge in response to applied mechanical stress. The word Piezoelectric is derived from the Greek piezein, which means to squeeze or press, and piezo, which is Greek for “push”. | Piezoelectric Effect is the ability of certain materials to generate an electric charge in response to applied mechanical stress. The word Piezoelectric is derived from the Greek piezein, which means to squeeze or press, and piezo, which is Greek for “push”.[4] | ||
===References=== | ===References=== | ||
*http://www.ionic-balance.com/technology/tourmaline | *[1] http://www.ionic-balance.com/technology/tourmaline | ||
*https://drive.google.com/open?id=0B-R-1b2JaIDAaVhIM3VqZ1piMzg | *[2] https://drive.google.com/open?id=0B-R-1b2JaIDAaVhIM3VqZ1piMzg | ||
*[3] https://en.wikipedia.org/wiki/Pyroelectricity | |||
*[4] http://www.nanomotion.com/piezo-ceramic-motor-technology/piezoelectric-effect/ |