Will you take ruthenium with your tea or coffee?

A study by Lionel Delaude and François Mazars, researchers from the Laboratory of Catalysis at the University of Liège (Belgium), has shown that caffeine and theophylline can be used to "green" catalysts based on ruthenium. ...

Taiwan tribe despairs as drought shrinks bamboo crop

Hacking at a bamboo plant with a machete, Avayi Vayayana peels back the shoot's stiff bark as he scans southern Taiwan's mountains, anxious for more of the money-making crop his Indigenous tribe increasingly struggles to ...

Extracting the best flavor from coffee

Espresso coffee is brewed by first grinding roasted coffee beans into grains. Hot water then forces its way through a bed of coffee grains at high pressure, and the soluble content of the coffee grains dissolves into the ...

How much cadmium is contained in cocoa beans?

Cocoa beans can absorb toxic heavy metals such as cadmium from the soil. Some cultivation areas, especially in South America, are polluted with these heavy metals, in some cases considerably. In combining different X-ray ...

Examining heat transfer in granular materials

Granular materials contain large numbers of small, discrete particles, which collectively behave like uniform media. Their thermal conductivity is crucial to understanding their overall behavior—but so far, researchers ...

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