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.
An octet-truss is the strongest structure for cantilevering because of the strength of the triangle However if its 'hardness' you're looking for, or resistance to purely compression, a tessellation of hexagons is your strongest shape, and therefore perhapse an irregular hexagon is your second strongest.n octet-truss is the strongest structure for cantilevering because of the strength of the triangle However if its 'hardness' you're looking for, or resistance to purely compression, a tessellation of hexagons is your strongest shape, and therefore perhapse an irregular hexagon is your second strongest.