| In a tree, the tissues of the inner bark, characterized by the presence of sieve tubes and serving for the transport of elaborate foodstuffs.
|
| A unit of loudness for an average listener of a sound; equal to the sound level being zero at faintest, and 1000 at loudest.
|
| Form a thin inert phosphate coating on surface usually by treatment with H3PO4, phosphoric acid.
|
| Luminous paint which emits light after the white light has been turned off; no phosphorus is used.
|
| Materials and devices used for photography and the processing of photographs.
|
| A piece of equipment used to develop photographs from negatives.
|
| A device that responds to light and transmits a resulting impulse.
|
| Physical action wherein an electrical flow is generated by light waves.
|
| The science of reliable measuring of aerial photographs to produce topographic maps.
|
| Pictures taken before a job commences to provide an accurate representation of what the site was like before construction.
|
| The science of measuring the intensity of light.
|
| Oxidation caused by solar rays.
|
| semiconductor devices that convert solar energy into electrical power.
|
| A process of conversion of sunlight into electricity.
|
| A white crystalline material used in making synthetic resins.
|
| A particular group of film formers; alkyd resins.
|
| Organic blue pigment developed synthetically; outstanding in fade resistance.
|
| Complex copper compound pigment with bluish-green cast.
|
| A listing of merchandise on hand, determined by actual count, weight, or measurement and the pricing or value thereof.
|
| The building activity, management and labor personnel and expertise in the operating area of the business as well as scrap materials and equipment held for resale and other assets not listed on a balance sheet.
|
| The treatment of an injury or illness by physical and mechanical means, such as massage or heat.
|
| Designated by the Greek letter P; the symbol of the ratio of the circumference of a circle to its diameter; the value of P is approximately 3.14159265; P = C/D
|
| Perlite Institute.
|
| A Continuous Hinge.
|
| A method of laying brick whereby the bricklayer simultaneously picks up a brick with one hand and, with the other, enough mortar on a trowel to lay the brick; also called the Eastern or New England method.
|
| A blacksmiths tool used to handle hot metal.
|
| When a too-heavy coating of paint has been applied and starts to sag or run down the surface, the painter brushes up through the sagging paint to level it off.
|
| A heavy hand implement with two pointed ends used in digging and loosening earth.
|
| A dipping process for cleaning steel and other metals; the pickling agent is usually an acid.
|
| A light truck having an open body with low sides and tailboard.
|