This site uses cookies. By continuing to use this site you agree to our use of cookies. To find out more, see our Privacy and Cookies policy.
Skip to the content

[IOP] A community website from IOP Publishing

Tag Archives: acoustics

Renewable Impacts

By Dave Elliott

It has been an eventful year for renewables. While progress continues apace, with renewables now supplying around 15% of electricity in the UK and 22% of global electricity, in this pre- Xmas post, rather than spelling out all the good news, I will look at some of the less good stories from the year- concerning wind power and CSP. (more…)

Posted in Renew your energy | Tagged , , , , , , , , , , | 1 Comment | Permalink
View all posts by this author  | View this author's profile

Why do beer bottles foam when struck on top?

by Hamish Johnston

A foamy mess in the making

A foamy mess in the making. (Courtesy: Javier Rodríguez-Rodríguez)

We’ve all had a friend who does it – you’re deep in conversation at a party, beer bottle in hand, when someone sneaks up and taps the top of your bottle with theirs, causing a foamy mess to erupt from your bottle. And to add insult to injury, their bottle doesn’t foam.

Now, physicists in Spain and France have studied this curious effect and gained a better understanding of how it occurs. While their work won’t prevent wet shoes and slippery floors at university social gatherings, the researchers believe their work could provide insights into geological features such as oil reservoirs, mud volcanoes and “exploding lakes”.

(more…)

Posted in General | Tagged , , , , , | Leave a comment | Permalink
View all posts by this author  | View this author's profile