TECHNOLOGY FOCUS - ELECTRONICS - Preferred Reflector: In the reflector, the ridge cap is substantially isosceles triangular defining an apex, and where the first end of the ridge cap defines a first base vertex, the second end of the ridge cap defines a second base vertex, and the apex is positioned to point away from the reflective membrane. It further comprises a ridge pole defining a first end and a second end, where the first end of the ridge pole is attached to the first end ridge cap and the second end of the ridge pole is attached to the ridge cap, and where the ridge pole is positioned to lie near the apex of the ridge cap. It further comprises a flexible transparent cover where the cover is attached to the first and second side beam regions and is supported by the ridge cap and ridge pole. The first and second end forms define a height and each of the first and second beam regions define a width, and where the ridge cap defines a height, and where the width of the side beam regions is approximately equal to at least fifty percent of the combined heights of the end forms and the cover. The width of the side beam regions is approximately equal to at least sixty percent of the combined heights of the end forms and the cover. The first and second tensioned members are cables. The support structure comprises a first tension arm attached to the first end of the first side beam region and the second end of the second side beam region and a second tension arm attached to the second end of the first side beam region and the first end of the second side beam region. The first end beam region and the first tension arm are of unitary construction and the second end beam region and the second tension arm of unitary construction. The first end form is pivotally attached to the first end of the first side beam region and to the second end of the second side beam region. The first side beam region and the second side beam region each comprise at least two longitudinal members comprising hollow metal sections, support members attached to the at least two longitudinal members; and cladding attached to the at least two longitudinal members. The first side beam region and the second side beam region each comprise a means for selectably adjusting the length of the beam region. It further comprises hydraulic dampers in operable connection with the frame to reducing torsional forces on the frame. It further comprises an optically translucent convex cover. Each of the first and second ends of each of the first end beam region, second end beam region, first side beam region and second side beam region is at an end of the beam.