Correction for the speed of The CRH (train)
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How fast is 551 kilometers per second?
It's about 5,500 times as fast as The CRH (train)
The speed of The CRH (train) is about 0.097 kilometers per second.
(a.k.a. Hexie Hao, 和谐号, a.k.a. 和諧號, a.k.a. Héxié Hào, a.k.a. "Harmony")
The CRH-3 train which runs on China's Beijing-Tianjin Intercity Railway are capable of speeds up to 0.097 kilometers per second. Theses train can make the 120 km (74 mi) journey from Beijing to Tianjin in about 30 minutes.