With input from U-M trauma experts, elderly and obese dummies are being used to help car manufacturers create safer vehicles for today's drivers. As the American population gets older and fatter, the crash-test dummies used to test the cars people drive are changing, too. Recently, engineers...
and find cool things you might not notice in the past.A city walk takes you away from the busy tourist places and shopping centres.You can walk into a local street,meet the people of the city and see how they live there.For example,you can see an elderly man playing chess in the ...