China now boasts seven of the 10 longest bridges in the world, all built within the past decade. Such engineering feats were once mainly the province of the United States, which for much of the latter half of the 20th century boasted most of the longest bridges in the world. Here are the 10 longest bridges in the U.S., and no matter how well traveled you are, four or five of these bridges will come as a surprise.
There are two types of neck braces: soft and rigid. A soft cervical collar is made from thick foam rubber covered in cotton. It is used to support your neck and control pain after an injury (e.g., whiplash).
If youâre considering braces for yourself or your child, you have many options. Your orthodontist will help you make the best choice for your scenario, but here are the basics of each type. Traditional metal braces are made of the stainless steel brackets and wires that inspired the term âmetal mouthâ years ago.