【群馬】ヘルメット着用し自転車で走行中に転倒　重体だった県立女子大准教授（４５）が死亡

Engineering scout on Instagram: "Airbag deploys in serious motorcycle crashes when traveling at certain speed and sensors detect sudden deceleration, acceleration, or loss of balance. Belt system secures ejecting seat and airbags around rider,automatically unfastening in less severe crashes or if rider tries to stand up while bike is stopped. 2. In 1930s, Brooks Walker invented a fifth wheel for cars to aid parallel parking. He patented the "vehicle lifting and traversing device" in 1935 and demonstrated it in LIFE magazine, but failed to sell it to the car industry. He continued to market it until the 1970s. Smart or dumb invention? Source: Unknown DM for credit or removal request (no copyright"