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).
Braces are external devices that support the muscular and bony structures of the spine. In the past, many spine patients were required to wear heavy plaster casts. Fortunately, patients that must wear braces today benefit from lighter weight plastic braces that have been designed with the patient's comfort in mind. Braces are categorized as rigid or soft. Rigid braces are used to restrict movement, while soft, elastic type braces provide muscular support while allowing movement.