“Vocalised Sounds and Human Sex,” Roy J. Levin, Sexual and Relationship Therapy, vol. 21, 2006, pp. 99-107. The author, at the University of Sheffield, UK, reports: “[An] early study of the coital behaviour of a single Caucasian married couple (Fox & Fox, 1969)… highlights the complexity of the vocal behaviour of but one female, which […]
Tag: noise
Grunting for advantage (in karate) – new study
There is a growing body of research into the effects of ‘grunting’ in sports. Previous studies have mostly investigated tennis grunts *, but now a new investigation has examined grunting in karate. A team from the psychology departments at the University of Hawaii at Manoa, US, and the University of British Columbia, Canada, measured the […]
The ‘Singing Cymbal’ controversy
The photo above is a still from a CERN teaching resources video (2014). “Use a cymbal or metallic plate that can vibrate freely. Use a flash, for example from a camera, hold it close to the plate and flash. You will hear a low tone. Physics: The moment of the photons are transferred in an […]
The Choo Lab’s Humming Generator
Many research groups across the world are in the process of developing so-called ‘Energy Harvesting’ (EH) techniques to extract electrical energy from human actions. (see for example, Implementing a knee-energy harvester). The Choo Lab at Caltech specializes in such things, and researchers there have recently developed a system which is designed to power portable electronic […]