BLOOMBERG: Crazy Idea: An Airbag for Your Head

May 2 (Bloomberg) -- Swedish bicycle helmet maker Hövding has unveiled an "invisible helmet", a fashion-forward airbag that sits around the neck like a collar and inflates via sensors that detect sudden impacts. Since unveiling the safety accessory last fall, the company has sold 700 of the units at a price of approximately $600. For more on Hödving's invisible helmet, check out Businessweek.com. (Source: Bloomberg)