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Based on these concerns, and as paper goods (especially after the 1908 invention of the Dixie Cup) became cheaply and cleanly available, local bans were passed on the shared-use cup. One of the first railway companies to use disposable paper cups was the Lackawanna Railroad, which began using them in 1909. By 1917, the public glass had ...
Orifice plate showing vena contracta. An orifice plate is a thin plate with a hole in it, which is usually placed in a pipe. When a fluid (whether liquid or gaseous) passes through the orifice, its pressure builds up slightly upstream of the orifice [1] but as the fluid is forced to converge to pass through the hole, the velocity increases and the fluid pressure decreases.
Barbadian Vehicle registration plates consist of letters and numbers. The Barbados Licensing Authority issues licence plates to all new motor vehicle owners. Each licence plate has one or two letters which represents the part of the island which the vehicle's owner resides or previously resided at the time the vehicle was registered.
Embossed blue serial on white plate with border line; "MARYLAND" and "EXP-3-31-62" centered at top and bottom respectively none: AB-12-34 AA-10-01 to approximately FY-47-00 Letters M through Z (excluding O, Q and U) added to two-letter series. The practice of not using I, O, Q and U in standard passenger serials continues today. [6] 1962–63
Embossed white serial on green plate; "WASHINGTON" at bottom, slightly offset to right; vertical "X26" at left none: 123-456 1 to approximately 311-000 First use of the full state name. 1927 Embossed green serial on white plate; "WASHINGTON" at bottom, slightly offset to right; vertical "X27" at left none: 123-456 1 to approximately 326-000 1928
Thermoelectric cooling uses the Peltier effect to create a heat flux at the junction of two different types of materials. A Peltier cooler, heater, or thermoelectric heat pump is a solid-state active heat pump which transfers heat from one side of the device to the other, with consumption of electrical energy, depending on the direction of the current.
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