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PUBLIC MARKS from frisch with tags idea & standard

20 March 2007 21:45

Crash Padding

by 3 others

What a helmet can do is spread out and slow down the impact forces of a sharp blow to the head, which helps prevent the brain from banging around as violently inside your skull. The outer helmet shell is important, since it spreads the blow over a wider a

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PUBLIC MARKS from frisch with tags idea & standard

20 March 2007 21:45

Crash Padding

frisch's TAGS related to tag idea