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Sonic Robo Blast 2 (often abbreviated SRB2) is a platform game made within id Software's Doom engine. It is a free Sonic the Hedgehog fan game inspired by the original Sega Genesis games that "attempts to recreate their design in 3D", [ 5 ] and was the first fan-made 3D Sonic game created. [ 6 ]
In 2012, Valve announced Steam for Schools, a free function-limited version of the Steam client for schools. [144] It was part of Valve's initiative to support gamification of learning. It was released alongside free versions of Portal 2 and a standalone program called "Puzzle Maker" that allowed teachers and students to create and manipulate ...
MyHouse.wad (known also as MyHouse.pk3, or simply MyHouse) is a map for Doom II created by Steve Nelson. It is a subversive horror-thriller that revolves around a house that continues to change in shape, sometimes drastically and in a non-euclidean manner.
The Mikado type was, in turn, ousted from the top-flight trains by larger freight locomotive wheel arrangements such as the 2-8-4, 2-10-2, 2-10-4 and articulated locomotives, but no successor type became ubiquitous and the Mike remained the most common road freight locomotive with most railroads until the end of steam. More than 14,000 were ...
Cross compound engine, with an expansion valve (top) on the high-pressure cylinder. An expansion valve is a device in steam engine valve gear that improves engine efficiency. It operates by closing off the supply of steam early, before the piston has travelled through its full stroke. This cut-off allows the steam to then expand within the ...
The steam pressure drops as it expands. A late cutoff delivers full steam pressure to move the piston through its entire stroke, for maximum start-up forces. But, since there will still be unexploited pressure in the cylinder at the end of the stroke, this is achieved at the expense of engine efficiency. In this situation the steam will still ...
Panzer Dragoon II Zwei [a] is a 1996 rail shooter game for the Sega Saturn, developed and published by Sega.The second entry in the Panzer Dragoon series and a prequel to the original game, the story follows Lundi and his dragon companion, Lagi, as they pursue an airship of the Ancient Age.
An oscillating cylinder engine cannot be reversed by means of the valve linkage (as in a normal fixed cylinder) because there is none. Reversing of the engine can be achieved by reversing the steam connections between inlet and exhaust or, in the case of small engines, by shifting the trunnion pivot point so that the port in the cylinder lines up with a different pair of ports in the port face.