plate-measuring engine
121Mk F3 155mm — Type Self Propelled Artillery Place of origin  France …
122MythBusters (2011 season) — Country of origin Australia United States Broadcast Original channel Discovery Channel Original run …
123Disneyland Railroad — This article is about the Railroad at Disneyland. For the Railroad at Disneyland Paris, see Disneyland Railroad (Paris). Disneyland Railroad Reporting mark DRR …
124Canadian Car and Foundry FDB-1 — infobox Aircraft name = Gregor FDB 1 type = Fighter manufacturer = Canadian Car and Foundry caption = L R: George Ayde, Can Car representative David Boyd and designer Michael Gregor designer = Michael Gregor first flight = 17 December 1938… …
125History of timekeeping devices — For thousands of years, devices have been used to measure and keep track of time. The current sexagesimal system of time measurement dates to approximately 2000 BC, in Sumer. The Ancient Egyptians divided the day into two 12 hour periods, and… …
126Radioactive decay — For particle decay in a more general context, see Particle decay. For more information on hazards of various kinds of radiation from decay, see Ionizing radiation. Radioactive redirects here. For other uses, see Radioactive (disambiguation).… …
127Drill — For other uses, see Drill (disambiguation). Drill scheme A drill or drill motor is a tool fitted with a cutting tool attachment or driving tool attachment, usually a drill bit or driver bit, used for drilling holes in various materials or… …
128Timeline of meteorology — The timeline of meteorology contains events of scientific and technological advancements in the area of atmospheric sciences. The most notable advancements in observational meteorology, weather forecasting, climatology, atmospheric chemistry, and …
