We spent some time in China.
Just before we left we went on the train to the Shanghai airport.It is about 21 miles or 29km.
It takes 7 min. That tells you it is fast! Check MagLev on goggle for info.
When the train going the other way passes,it is just a slight bump like it passed over a little dip but there is NO dip it is a train going the other way ten feet apart with a closing speed of 862 km/h!! Unbelievable!
