China is building the world’s fastest wind tunnel to simulate hypersonic flight at speeds of up to 12 kilometres per second. A hypersonic vehicle flying at this speed from China could reach the west coast of the United States in less than 14 minutes. Zhao Wei, a senior scientist working on the ...
China is developing aircraft capable of reaching the US west coast in just 14 minutes, reports suggest. The vehicles will be tested in China's newest military-grade wind tunnel, which will be up and running by 2020.
RMEILAN, Syria (AP) — Driving along the roads of northeastern Syria, one would imagine there is a massive economic boom in the war-ravaged area.Convoys...
A tunnel is an underground passageway, dug through the surrounding soil/earth/rock and enclosed except for entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods.
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Mar 10, 2013 · So I have a 2006 MXZ 500ss trail model and I want to get the track bumped out so I have an little easier time off of the trail. I know I need to buy a rail extension, a larger track, and a tunnel extensions.
In the future Scandinavia and the rest of Europe will be connected by the world's longest road and rail tunnel.
Tunnels and underground excavations: Tunnels and underground excavations, horizontal underground passageway produced by excavation or occasionally by nature’s action in dissolving a soluble rock, such as limestone.
KAMY series of Roadheaders offers the best cutting performance in a wide range of rock formations. Equipped with geometrically optimized transverse or longitudinal cutter heads, these flexible machines can be used to excavate subway tunnels, road tunnels, railway tunnels and water tunnels without using explosives.