The train wheels are designed in a cone shape to ensure that the train does not derail and can easily navigate curves.
- Why are train wheels made of metal while car wheels are made of rubber?
- Forget AI, the era of organic intelligence has arrived: Bold technology makes computer chips obsolete
- China also has pyramids, but why are they much less famous than the Egyptian pyramids?
- The strange, inexplicable mystery on a deserted island: The USSR decoded it but failed
- The truth about the tomb of Gilgamesh, believed to contain extraterrestrial technology
