silica pigment
81Mollusca — Temporal range: Cambrian–Recent …
82Mona Lisa — This article is about the painting. For other uses, see Mona Lisa (disambiguation). Mona Lisa Italian: La Gioconda, French: La Joconde …
83Scar — Scars redirects here. For the 1998 video game, see S.C.A.R.S. (video game). Scarring redirects here. For the act of inflicting scars, see Scarification. This article is about scar tissue. For other uses, see Scar (disambiguation). Scar… …
84Corrosion — v · d · e Materials failure modes Buckling · …
85Porphyrin — Structure of porphine, the simplest porphyrin Heme group of hemoglobin. An …
86Epoxy — In chemistry, epoxy or polyepoxide is a thermosetting epoxide polymer that cures (polymerizes and crosslinks) when mixed with a catalyzing agent or hardener . Most common epoxy resins are produced from a reaction between epichlorohydrin and… …
87DNA microarray — A DNA microarray (also commonly known as gene chip, DNA chip, or biochip) is a collection of microscopic DNA spots attached to a solid surface. Scientists use DNA microarrays to measure the expression levels of large numbers of genes… …
88List of IARC Group 3 carcinogens — Substances, mixtures and exposure circumstances in this list have been classified by the IARC as Group 3: The agent (mixture or exposure circumstance) is not classifiable as to its carcinogenicity to humans. This category is used most commonly… …
89Bondo (putty) — Bondo is a two part putty, manufactured by 3M. While the term Bondo is a registered trademark for this company s product, it is commonly used in the U.S. as a genericized trademark to refer to all auto repair putties or so called plastic body… …
90Lime plaster — is a mixture of calcium hydroxide and sand (or other inert [http://en.wikipedia.org/wiki/Filler (materials) filler materials] ). Carbon dioxide in the atmosphere causes the plaster to set by transforming the calcium hydroxide into calcium… …
