Triboluminescence (/ˌtraɪboʊˌluːmɪˈnɛsns/) is a scientific term that describes the phenomenon of light produced when certain materials are subjected to mechanical pressure or friction. The word is derived from the Greek words "tribo", meaning to rub, and "lumen", meaning light. The spelling of triboluminescence may look intimidating, but using the IPA phonetic transcription (/ˌtraɪboʊˌluːmɪˈnɛsns/) can help with pronunciation. This fascinating property of materials has applications in fields such as materials science, chemistry, and geology.
Triboluminescence is a fascinating phenomenon in which certain materials emit a brief burst of light or luminescence when subjected to mechanical energy or friction. The word "triboluminescence" is derived from the Latin words "tribus," meaning rubbing or friction, and "lumen," meaning light. This natural light emission occurs due to the breaking of chemical bonds within the material as a result of mechanical stress.
When two surfaces of a triboluminescent material are rubbed together, struck, or crushed, the energy created by this action causes the material to release energy in the form of visible light. This light emission can vary in intensity, color, and duration, depending on the specific characteristics of the material involved. Examples of substances that exhibit triboluminescence include certain crystals, minerals, and chemical compounds.
Historically, triboluminescence has been observed in a variety of natural materials, including sugar, quartz crystals, and wintergreen-flavored candies. However, scientists have also been able to develop artificial triboluminescent materials by incorporating specific chemicals or coatings into various substances. Triboluminescent materials have been utilized in a wide range of applications, including as indicators for detecting damage or stress in structural materials, sensors, and even for decorative or entertainment purposes.
In summary, triboluminescence is the emission of light resulting from the mechanical breaking of chemical bonds within certain materials. This intriguing property has captivated scientists and individuals alike for its captivating and mesmerizing light displays.
Luminosity caused by friction.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "triboluminescence" is derived from two Latin roots: "tribo" meaning "to rub" and "lumen" meaning "light". The suffix "-escence" is added to indicate the process of emitting light. So, "triboluminescence" literally translates to "rubbing light".