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| Stadia rod
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The rod that is located at the point of interest, which is sighted through the transit, to determine distances in a survey. This rod has graduated measurement in feet and tenths of a foot. |
| Stadia surveying
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Surveying to determine distances by use of a stadia Rod and a transit with stadia Hairs. The transit is used to sight the stadia rod and then establishes the distance measurement by aligning the graduations on the rod with the stadia lines on the transit lens. |
| Staebler-wronski effect
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The tendency of the sunlight to electricity conversion efficiency of amorphous silicon photovoltaic devices to degrade (drop) upon initial exposure to light. |
| Stagflation
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Term coined in the 1970's, increasing prices during a slowdown in economic activity. |
| Staggered stud partition
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Wall structure that uses top and bottom framing pieces called plates, of a wider size that that of the studs that are nailed to it. The studs alternate from one side of the plate to the other, increasing noise insulation since vibrations are not passed through as they are when there are common studs, touching each side. With these offset studs, the drywall panels, on each side of the wall, are fastened to different sets of studs. |
| Stagnation temperature
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A condition that can occur in a solar collector if the working fluid does not circulate when sun is shining on the collector. |
| Stain
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(1) Coloring of dyes in a drying oil or water base which is used as both a protective and ornamental covering for certain materials. (2) A discoloration or change in pigment. |
| Stain resistant
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A chemical finish applied to or inherent in carpet fibers which inhibit specific stains from adhering to or dying (staining) carpet and fabrics. |
| Stained glass
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Glass which is colored in a number of ways such as by enameling, by burning pigment into the surface, by fusing metal oxides into it, etc. and is used for decorative windows. |
| Stainless steel
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A corrosion-resistant steel alloy containing nickel and/or chrome in combination with small amounts of other elements. |
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