freeze-thaw-stable
51Foam Index — Test is a rapid method to determine the relative levels of Air Entraining Agent (AEA) needed during concrete mixing, with or without mineral additives like combustion fly ash, that control air void volumes within cured concrete. [… …
52environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …
53Burroughs MCP — Master Control Program redirects here. For the fictitious computer program villain, see Master Control Program (Tron). MCP Company / developer Burroughs / Unisys Programmed in ESPOL, NEWP OS family Not Applicable Working state Current …
54crystal — crystallike, adj. /kris tl/, n., adj., v., crystaled, crystaling or (esp. Brit.) crystalled, crystalling. n. 1. a clear, transparent mineral or glass resembling ice. 2. the transparent form of crystallized quartz. 3. Chem., Mineral. a solid body… …
55Frostbite — This article is about a medical condition. For other uses, see Frostbite (disambiguation). Frostbite Classification and external resources Frostbitten hands ICD 10 …
56Climate of the Arctic — The climate of the Arctic is characterized by long, cold winters and short, cool summers. There is a large amount of variability in climate across the Arctic, but all regions experience extremes of solar radiation in both summer and winter. Some… …
57Anthropic principle — In astrophysics and cosmology, the anthropic principle is the philosophical argument that observations of the physical Universe must be compatible with the conscious life that observes it. Some proponents of the argument reason that it explains… …
58Earth — This article is about the planet. For other uses, see Earth (disambiguation). Earth   …
59STS-62 — Infobox Space mission mission name = STS 62 insignia = Sts 62 patch.png shuttle = Columbia launch pad = 39 B launch = March 4, 1994, 8:53:01 a.m. EST landing = March 18, 1994, 8:10:42 a.m. EST, KSC Runway 33 duration = 13 days, 23 hours, 16… …
60Geological history of Earth — impacting the Earth in a glancing blow. [cite journal | last = R. Canup and E. Asphaug | title = Origin of the Moon in a giant impact near the end of the Earth s formation | journal = Nature | volume = 412 | pages = 708–712 | date = 2001 | url =… …
