China's urban train fueled by hydrogen has finished testing.
On Thursday, China's first autonomously constructed hydrogen-powered urban train achieved a test speed of 160 km/h, a significant advancement in the use of hydrogen energy in rail transportation.
The crucial question is: How will the universe end?
Humanity has been staring at the night sky and considering the fate of the universe for millennia. The dominant theory holds that the Big Bang represents a massive explosion that created the universe and sent it on an unending course of expansion. In our upcoming report, we describe the most recent findings on the topic.
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