Discuss this Article. They dilated my daughter's eyes 18 hours ago, and they're still dilated. Anyone that says the eyes are back to normal in 6 hours does not know what they're talking about. The job of an eye doctor is not let their patients go blind. Retinal issues are the number one cause of blindness in north america, and most limiting factor of seeing the retina is the size of the pupil.
A truss bridge is a bridge composed of connected elements (typically straight) which may be stressed from tension, compression, or sometimes both in response to loads. Truss bridges are one of the oldest types of modern bridges. The basic types of truss bridges are shown below.
10 most extreme places on Earth. Any structure that uses trusses in its design can be called a truss structure. Trusses are triangular or pyramidal shapes that are used in the structure of buildings in order to make them more stable than structural components with 90 degree angles could.hese features of triangles make the truss structure common in engineering and architecture. A bridge is a common type of truss structure. Many bridges utilize a series of simple trusses as a part of their design, either along the sides, the bottom, or on towers to hold the bridge up at strategic intervals.