TL;DR
Technology to increase range of the robo-ports, also one to increase the energy they can have inside them or make them use less energy.


What ?

I suggest some technologies or investigations news arounds bots and robo ports.

1 - Range of robo-ports

You have to create a insane amount of ...

TL;DR
Trains that works with electricity


What ?

Train that works with electricity, without fuel

https://constructionreviewonline.com/wp-content/uploads/2017/06/Uganda-and-Tanzania-to-build-electric-lines-for-the-railway-transport.jpg

Why ?
There will be a upgrade for the train, for ...