see also: http://www.phillipshelmets.com/HOME.htm
edit: and: http://www.bikeradar.com/road/news/article/new-helmet-could-protect-against-rotational-injuries-25081/
doesn't look like ventilation will be too good though. But maybe the technical problems of helmets can be overcome. I still think it's the wrong place to focus.
@moth started
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see also: http://www.phillipshelmets.com/HOME.htm
edit: and: http://www.bikeradar.com/road/news/article/new-helmet-could-protect-against-rotational-injuries-25081/
doesn't look like ventilation will be too good though. But maybe the technical problems of helmets can be overcome. I still think it's the wrong place to focus.