Giving Us Reasons To Smile (teeth + electricity)

Schemes for ‘harvesting’ energy range from electricity-generating dancefloors to knee dynamos. But there is now a new option – patented last month by the Colgate-Palmolive Company (New York), the ‘Oral care implement with mechanical energy harvesting‘. During use, the invention employs piezoelectric devices to generate electricity from the stresses-and-strains caused by bending the toothbrush head […]

Perception of Electric Toothbrushes

“The Role of Auditory Cues in Modulating the Perception of Electric Toothbrushes,” Massimiliano Zampini, S. Guest, and Charles Spence, Journal of Dental Research, vol. 82, no. 11, 2003, pp. 929–32. Zampini and Spence were awarded the 2002 Ig Nobel Prize in nutrition for electronically modifying the sound of a potato chip to make the person […]

Improbable Research