Hi Tech & Innovation

Paint it black(er): A new way to make cars darker than ever

Scientists have developed a practical way to make ultra-black coatings to meet demand for trendy, luxury vehicles in China. The coating, described in a paper published in Matter & Light, is made up of a composite of carbon ...

Hi Tech & Innovation

Electric 'nose' can smell when your food's gone bad

Most of us have used the sniff test to decide whether a slightly expired bottle of milk or a week-old box of takeout is still good to eat. But while the human nose can be quite astute, it doesn't always catch everything. ...

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