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Tag Archives: science and society

Beyond Technical Fixes

By Dave Elliott

In their powerful 2011 book ‘Techno fix’, radical North American ‘greens’ Michael and Joyce Huesemann challenged what they saw as ‘a pervasive belief that technological innovation will enable us to continue our current lifestyle indefinitely and will prevent social, economic and environmental collapse’. They said that techno-optimism was completely unjustified. If driven by continued economic growth, technology did not promote sustainability but hastened collapse. Instead we needed radical social change: ‘as long as technology is used for control and exploitation, negative social and environmental effects are inherently unavoidable.’ So they looked to a future of less invasive, decentralized communities, based on ‘the values of social and environmental harmony, cooperation and mutual enhancement’, with participatory design to ensure greater democratic control of technology and harmony with nature.


Posted in Renew your energy | Tagged , , , , | 1 Comment | Permalink
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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”.


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