hot-acid polymerization process
61Bisphenol A — Bisphenol A IUPAC name …
62photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …
63Acetylene — HCCH redirects here. For other uses, see HCCH (disambiguation). Acetylene …
64Silicon dioxide — Silica redirects here. For other uses, see Silica (disambiguation). Silicon dioxide …
65Harvest (wine) — Medieval grape harvesting. The harvesting of wine grapes (Vintage) is one of the most crucial steps in the process of winemaking. The time of harvest is determined primarily by the ripeness of the grape as measured by sugar, acid an …
66Organic semiconductor — STM image of self assembled supramolecular chains of the organic semiconductor Quinacridone on Graphite. An organic semiconductor is an organic material with semiconductor properties. Single molecules, short chain (oligomers) and organic polymers …
