الأحد، 18 أكتوبر 2015

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VANCOUVER – Biomechanical engineer Alyssa DeMarco is distressed whenever she spots two nearly identical snow-sport helmets — with a subtle difference that could be life shattering. Superior helmets are certified by an international standards organization, but in Canada there’s no law on safety regulations for ski or snowboard headgear. Imposter helmets are a big concern...

from Global News http://ift.tt/1LiBWQf
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