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In a helmet equipped with the MIPS safety system, a low-friction layer allows the helmet to slide relative to the head, resulting in a reduction of the rotational motion that may otherwise be transmitted to the brain. In this way, the MIPS approach mimics the natural safety system of the human head. [4]
[2] [3] Roy Richter began working for Bell Auto Parts in 1933. In 1945, he purchased the store for $1,000. [2] Richter produced his first race car helmets in 1954. The "Bell Helmet Company" was established as a division of Bell Auto Parts in 1956. [2] Bell introduced its Star model, the first full-face motorcycle helmet on the market, in 1968. [4]
The Snell Memorial Foundation is a nonprofit organization created to provide a high quality standard of safety for helmets.Founded in 1957, the foundation is named after William "Pete" Snell, a popular sports car racer who died in 1956 of head injuries he received when the racing helmet he wore failed to protect his head.
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A value of 700 is the maximum allowed under the provisions of the U.S. advanced airbag regulation (NHTSA, 2000) and is the maximum score for an "acceptable" IIHS rating for a particular vehicle. [5] A HIC-15 (meaning a measure of impact over 15 milliseconds) of 700 is estimated to represent a 5 percent risk of a severe injury (Mertz et al., 1997).
In the video, the boys are speeding in the car, with Careford driving and Owen filming. While the sound is somewhat muffled, it appears that Owen is telling Careford to "slow down" and "keep going."
Different criteria are used to figure out how safe a structure is in a crash, depending on the type of impact and the vehicle involved. Crashworthiness may be assessed either prospectively, using computer models (e.g., RADIOSS , LS-DYNA , PAM-CRASH , MSC Dytran , MADYMO ) or experiments, or retrospectively, by analyzing crash outcomes.