Cargo tramways can be fully or partly powered by gravity, and some deliver excess power that can be utilized to generate electricity or to drive cranes or machinery in nearby factories
The human power required to achieve a speed of 30 km/h in a velomobile is only 79 watts, compared to 271 watts on a normal bicycle.
Estimates about the fuel efficiency of aircraft ignore the record of the pre-jet era.
We don’t need better batteries, we need better cars.
One hundred years ago electric cars were a common sight on city streets in Europe and the United States.
During the Second World War, almost every motorised vehicle in continental Europe was converted to use firewood.
Only four years after the first experimental trolleybus, an ordinary steam canal boat was adapted to a trolleyboat.
We don’t need any new cycling infrastructure. What we need is to clear the current road infrastructure of inefficient vehicles and replace them with efficient ones.
Cable trains (or funiculars) are one of the most energy-efficient modes of transport out there.
Trolleybuses and trolleytrucks have all the advantages of electric cars – and none of their drawbacks.
German engineer Max Schiemann was among the first engineers to develop a commercial trolleybus system for passengers at the turn of the 20th century. He also created some unique cargo systems.
If you want a revival of sail the high-tech way, you can have it.