News tagged with energy differences

Reduction in US carbon emissions attributed to cheaper natural gas

In 2009, when the United States fell into economic recession, greenhouse gas emissions also fell, by 6.59 percent relative to 2008.

Space & Earth / Environment

created Feb 27, 2012 | popularity 3.7 / 5 (6) | comments 4 | with audio podcast

Temperature differences give rise to electricity

More than half of today's energy consumption is squandered in useless waste heat, such as the heat from refrigerators and all sorts of gadgets and the heat from factories and power plants. The energy losses ...

Technology / Engineering

created Nov 09, 2011 | popularity 4.7 / 5 (3) | comments 3

Curtailing open grocery refrigerators' energy loss

Open refrigerated display cases holding eggs, cheese, drinks and more are a favorite of supermarket chains. Despite the easy access they offer customers, the inefficient energy-guzzlers cost retailers a huge ...

Technology / Engineering

created Oct 28, 2011 | popularity 4.3 / 5 (3) | comments 0 | with audio podcast

Ultrathin coating generates current more efficiently from nanowire

Electrical energy can be generated from a temperature difference in a circuit with suitable materials. In simulations, ETH Zurich scientists show which materials are most likely to succeed in a thermoelectric ...

Nanotechnology / Nanomaterials

created Feb 28, 2011 | popularity not rated yet | comments 1