fig17 RESEARCH ON IMPORTANT CURLING MATERIALS AND ACTIONS Unofficial Helmet Warning At high speeds your entire helmet is surrounded by a low pressure area. In fact, at a fast enough speed, or in a boxy enough helmet all your visors and shade will be sucked out far enough that they start to hit the airflow and your whole helmet makes this really COOL noise... Of course, if your not expecting it, itıs kinda scary. At any rate: This is why your sunroof keeps raising, and also why convertible tops and jeeps make such a racket on the freeway... flap flap flap flap..... SHADES SUIT PADS HANDLES ZIPPERS SHOES HELMET SPOILER AERO CUPS IMPORTANT CHAT ROOM ROLL TEXT MAIL POSTCARD