Even the leanest, greenest, most efficient toilets waste several liters (over one US gallon) of water per flush, which poses a real problem for vehicles like trains, planes, and long-distance buses: do you really want to carry a giant, heavy tank of water just for flushing the toilet?
Types of electric carsElectric cars broadly come in two main varieties: battery electric (sometimes called BEV, or battery electric vehicles), with just an electric motor for power; or hybrid, with both an electric motor and a conventional gasoline engine. This article is mostly about battery ...
(Telma frictionless "retarder" brakes, used on many trucks, buses, and coaches, work this way.) Photo: Close-up of the circular eddy-current brake from the Shinkansen 700 train in our top photo. Although this resembles the motorcycle friction brake up above, it works in a totally different...
Indeed, Ballard, one of the leading fuel-cell manufacturers, argue that fuel cells will soon be the most viable solution for heavy vehicles such as trucks, buses, trains, and even planes that would otherwise be powered by dirty fossil fuels. In California, there's now a huge push to make...