Abstract: A mold for the manufacture of non-round glass shapes and method for making such molds. In molds for glass blowing and pressing, especially for producing non-round shapes where molten glass must be in contact with the mold for an extended time, an economical, heat resistant mold adaptable to any shape is produced by mixing defined ratios of water, hydraulic compound and amorphous fused silica to form a pourable composite mixture which is shaped into a mold by placing the mixture on or in a master pattern and curing the mixture at room temperature and then at elevated temperature.

Abstract: A method and apparatus for growing plants by controlling growing temperatures in conventional and hydroponic planting systems. Plants placed in a plant growing medium are contained in metal growing trays placed in contact with a closed metal piping system and disposed externally to and structurally supporting the growing trays and containing a temperature-controlled liquid, thereby providing conductive heat exchange with the plant growing trays and plants. The plants are also supplied with liquid nutrients and artificial light conductive to plant growth.