Abstract: A solar collection device is disclosed. The device includes mirrors for intensifying the collected solar energy. The output of the mirrors can be used to heat air or water or other fluids as well as ores or solids. In addition, artificial light can be used to supplement the solar energy.

Abstract: The pneumatic structure comprises a pneumatic compression ring having a top cover under tension and being suspended from support columns by means of a cable system, the structure being suitably stiffened. A lower membrane can be attached to the lower portion of the pneumatic compression ring to create an inner space for holding equipment, such as a solar energy collector.

Abstract: A pneumatic structure, suitable for use as a roof, employs a series of upper and lower cables connected via vertical diaphragms and disposed within an inflated envelope such that a load imposed on the upper surface of the inflated envelope will be transferred to the lower cables via the diaphragms and then taken up by the lower cables. To carry this out, there is a common connection between the diaphragm, its upper cable and the upper surface of the membrane and a similar connection with the lower cable, the diaphragm and the membrane.A pneumatic compression ring is also disclosed for use with the pneumatic roof structure or for use in supporting an alternative roof structure, or a segment thereof may be used as a pneumatic arch.