Video: How airbags work

Normally, something blowing up in your face is bad. But in the event of a vehicle accident, and in conjunction with a seatbelt, one particular explosion could very well save your life. It's the chemical reaction that inflates ...

Staying safe in snow

Many people dream of skiing off piste in deep virgin snow. But their dream would rapidly turn into a nightmare if they were to set off a slab avalanche. Researchers have now developed a remote triggering system for avalanche ...

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