Trains made with reflective element that reflects so strong, that they can blend into the landscape. It sounds more futuristic than it is. In 2018, they should whiz by Japan with nearly 600 kilometers per hour.
The new bullet trains are designed by the acclaimed architect, who previously developed buildings that went up in the area. They used for this purpose an extremely reflective material. The train will thus are not really invisible, but very unobtrusive.
Scientists have been trying for decades to create an invisible stuff, but succeed so far to avoid the only radar detection, not even to outwit the human eye. This is still some improvement needed in nanotechnology.
Initially seven trains will be made every eight wagons. Hopefully, the designer also thought of a way to warn bystanders in safety vest as the train rumbles down on them.