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| Natural toxins: from the arsenal of a bacterium |
Cyanobacteria are ancient organisms. The most varied types of shells without a core, which, at high density in warm waters, can secrete complex substances and also toxins. Some are toxic to both humans and animals. Eawag scientist Elisabeth Janssen is on the trail of these natural toxins: applied research, the results of which can be incorporated into water protection or water management.
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Hercules and batteries, X-rayed
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For ancient artefacts and modern technologies alike, examination methods that leave the object completely intact are required. For this, researchers at PSI use elementary particles called muons and are developing a new experimental method that is useful for archaeology and can also answer questions relevant to battery development.
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“It was true detective work!”
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The InSight mission on Mars is running out of power and most of its functions could be shut down in the months to come. Some have already been deactivated. However, the attached seismometer, SEIS, will remain in operation for as long as possible. ETH Professor Domenico Giardini takes stock of three years of marsquake measurements.
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Mass diebacks of Scots pines caused by lack of rain
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Since the 1990s, Valais and other dry Alpine valleys have seen repeated mass diebacks of Scots pines. Oddly, however, the amount of precipitation in the all-important summer months has not decreased at all over this period. WSL researchers have now found an explanation.
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