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A Half-Life 2 Steam Trading Card, depicting the G-Man. Steam Trading Cards are a digital commodity issued by Valve for use on its digital distribution service, Steam.Steam Trading Cards are a non-physical analogue of conventional trading cards, which are periodically granted to Steam users for playing games, fulfilling tasks, or by random chance.
Steam is a video game digital distribution service and storefront managed by Valve. It was launched as a software client in September 2003 to provide game updates automatically for Valve's games and expanded to distributing third-party titles in late 2005. Steam offers various features, like game server matchmaking with Valve Anti-Cheat ...
The Steam Awards are an annual user-voted award event for video games published on Valve's Steam service. Introduced in 2016, game nomination and voting periods are concurrent with Steam's annual autumn and winter holiday sales, centered around the holidays of Thanksgiving and Christmas .
A stem-and-leaf display or stem-and-leaf plot is a device for presenting quantitative data in a graphical format, similar to a histogram, to assist in visualizing the shape of a distribution. They evolved from Arthur Bowley 's work in the early 1900s, and are useful tools in exploratory data analysis. Stemplots became more commonly used in the ...
Triple point. A typical phase diagram. The solid green line applies to most substances; the dashed green line gives the anomalous behavior of water. In thermodynamics, the triple point of a substance is the temperature and pressure at which the three phases ( gas, liquid, and solid) of that substance coexist in thermodynamic equilibrium. [ 1 ...
Steam locomotive components. Main components found on a typical steam locomotive include: The main components of a typical steam locomotive. Click or hover over numbers to see names. ( enlarge) The diagram, which is not to scale, is a composite of various designs in the late steam era. Some components shown are not the same as, or are not ...
Superheated steam was widely used in main line steam locomotives. Saturated steam has three main disadvantages in a steam engine: it contains small droplets of water which have to be periodically drained from the cylinders; being precisely at the boiling point of water for the boiler pressure in use, it inevitably condenses to some extent in the steam pipes and cylinders outside the boiler ...
The dew point of a given body of air is the temperature to which it must be cooled to become saturated with water vapor. This temperature depends on the pressure and water content of the air. When the air is cooled below the dew point, its moisture capacity is reduced and airborne water vapor will condense to form liquid water known as dew. [ 1]