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.
The embodied energy of the memory chip alone exceeds the energy consumption of a laptop during its life expectancy of 3 years.
Wood, steel, aluminium, iron, glass, paper, plastics, copper, silicon, nickel, titanium, electronic grade silicon.
Wind power rules, but commercially available small windmills are a swindle.
If you want a revival of sail the high-tech way, you can have it.
Time for a new age of sail.
Fast recharging times generate lots of excitement, but what seems to be forgotten is that they can lead to a fabulous amount of peak demand.
For almost every electronic device or oil driven machine there used to be a low-tech alternative that was powered by human muscles, water or wind.
Imagine you put a portable hard disk of 500 gigabytes in your backpack and start walking. In which cases are you faster than your internet connection?
The gipsy zeppelin baseship of Lieven Standaert generates its own energy, never has to land, and is equipped with a sun terrace where you can have a coffee.
At the end of the 19th century, many towns and cities were lit up by powerful electrical lamps placed on towers up to 300 feet (90 metres) high.
How can you blame people for flying if there is no affordable alternative?