bottom-hole heater
31Raymond Kurzweil — Infobox Person name = Raymond Kurzweil image size = 250px caption = Raymond Kurzweil birth date = Birth date and age|1948|2|12|mf=y birth place = Queens, New York, United States death date = death place = height = 5 7 weight = 145 lbs occupation …
32Coffee — This article is about the beverage. For the bean it is made from, see Coffee bean. For other uses, see Coffee (disambiguation). Coffee A cup of black coffee Type Hot Country of origin …
33Electric arc furnace — An electric arc furnace (EAF) is a furnace that heats charged material by means of an electric arc. Arc furnaces range in size from small units of approximately one ton capacity (used in foundries for producing cast iron products) up to about 400 …
34Torpedo — The modern torpedo (historically called an automotive, automobile, locomotive, or fish torpedo) is a self propelled explosive projectile weapon, launched above or below the water surface, propelled underwater toward a target, and designed to… …
35Citroën 2CV — Manufacturer Citroën Production 1948–1990 [1] …
36Swimming pool sanitation — articleissues refimprove = January 2008 technical = August 2008Swimming pool sanitation refers to both visual clarity and levels of microflora, such as bacteria and viruses in swimming pools. The goal of sanitation is to prevent the spread of… …
37Dropping point — The dropping point of a soap thickened lubricating grease is the temperature at which it passes from a semi solid to a liquid state under specific test conditions. It is an indication of the type of thickener used, and a measure of the… …
38Diffusion of technology in Canada — This article outlines the history of the diffusion or spread of technology in Canada. Technologies chosen for treatment here include, in rough order, transportation, communication, energy, materials, industry, public works, public services… …
39Voyager 2 — For the phone sometimes referred to as the Voyager 2, see LG enV touch. Voyager 2 Voyager spacecraft Operator …
40Richard Trevithick — Infobox Scientist name = Richard Trevithick box width = image width = 150px caption = Richard Trevithick, by John Linnell (1792 1882) birth date = April 13, 1771 birth place = Cornwall death date = April 22, 1833 (aged 62) death place = Dartford …
