also here, just as with cellulosic ethanol, "waste" materials are being removed). All these processes demand extra energy. Are algal fuel

extra applications instead of energy savings, an excellent example of the energy efficiency paradox that is

Hochgeschwindigkeitszuege Posted on September 11, 2008 at 02:47 PM in Cars , Cover story , Energy consumption , Energy efficiency paradox

consume more energy than current CPU's), but they also stand for more embodied energy. A GPU

Water powered cable trains Cable trains (or funiculars) are one of the most energy-efficient modes of

155,000 watts. Motor art courtesy of  Paul Loughridge . All rights reserved. ---------------------------------------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------------------------------------------- How many extra power plants do we

The Citroen 2CV: cleantech from the 1940s If you sometimes wonder why more energy efficient technology does not

25, 2011 at 02:32 PM in Batteries , Bicycles , Cover story , DIY , Ecotech , Embodied energy , Energy , Energy production , Flywheels

emissions and also greenhouse gases. Energy mix The ecological burden of energy use depends on the

this leads to a 50 percent loss in the available energy contained in the

It was 3.46 kilometres long (4.23 kilometres up to 1914, when an extra track was in

efficient than vehicles with a combustion engine, and can drive on renewable energy. The trolleybus

on September 30, 2010 at 03:11 PM in Bicycles , Cover story , Electric cars , Energy consumption , Human energy , Human

and were treated separately. Then, just as now , thermal energy was much more important than kinetic energy. Urban revival The

use of the bicycle. One way to solve the large energy losses of pedal

in cities than at steady speed on a highway - an electric motor uses no energy when it is idling

consume more energy than current CPU's), but they also stand for more embodied energy. A GPU

can be more sustainable, it's important to consider the very high energy use of digital

emissions and also greenhouse gases. Energy mix The ecological burden of energy use depends on the

future of solar powered factories   Most of the talk about renewable energy is aimed at electricity

and were treated separately. Then, just as now , thermal energy was much more important than kinetic energy. Urban revival The

use of the bicycle. One way to solve the large energy losses of pedal

Water Motors   Few people in the western world realize that they have an extra power source available in