Beer easier to carry than coffee
- Connexion France February 26th, 2015
- Source: http://www.connexionfrance.com/scientists-beer-coffee-CNRS-Princeton-16686-view-article.html
FRENCH and American researchers have made a scientific breakthrough in discovering why beer is easier to carry without sloshing than coffee.
It may seem obvious, but they have proved that the difference is in the foam.
The discovery is not just a question of how stable coffee cups are compared to beer glasses as the boffins compared like with like - showing that if you walk with a beer glass filled with fresh-brewed coffee and then suddenly stop, it sloshes more violently and for longer compared with the same glass filled with beer.
They examined the effects – called damped harmonic oscillation – with a set-up including a mechanical vibrator and a high-speed camera.