Clean TalkElectric MobilityNewsProductsTechnologyWorld’s First Glass-Bottom Air-rail With Lithium BatteriesVartikaJuly 3, 2021July 3, 2021 by VartikaJuly 3, 2021July 3, 202104A glass-bottomed sky train rolled off production lines in China last week. With glass paneling on three sides, the panda-themed sky train provides passengers with...