To do so, Mathews adopted the idea of a better helmet. Wheeler sporting a Football Helmet. In 2007, Duma, a professor that conducts the Virginia Tech-Wake Forest University School of Biomedical Engineering and Sciences, obtained a call by Lester Karlin, the longtime equipment manager for Virginia Tech's football group. At a ordinary hitthey discoveredthat players' heads were exposed to 20 g-force
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