Thousands block Athens traffic to protest delays in Greek rail disaster inquiry
Several thousand high school and university students have blocked traffic in central Athens in an anti-government protest ...
A high-speed rail in Pa.? It could happen, official says | Today in Pa.
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World's First High Pressure Direct Injection Ammonia Engine
The Korea Institute of Machinery and Materials (KIMM) has developed the world's first engine capable of directly injecting ammonia into the combustion chamber at high pressure, in collaboration with t ...