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General Science

Plant-based toothbrush. Really?

20 Jan 2017

Compostable. Recyclable. Sustainable. Admirable concepts with interesting scientific connections. But there is often a lot of misleading marketing hype. Consider “Brush with Bamboo,” marketed as a ...

The Thermite Reaction

20 Jan 2017

The place was Edinburgh, Scotland. The occasion, the Edinburgh Science Festival. There were a number of captivating presentations, but my biggest thrill came from looking out the hotel window. A...

Hydrogen Peroxide: the body's best defence system

18 Jan 2017

Enzymes are special protein molecules that speed up chemical reactions. But why should liver contain an enzyme that helps degrade hydrogen peroxide? Because hydrogen peroxide actually forms as a...


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