News tagged with energy costs

Related topics: energy

Mechanical motion rectifier leads to better energy harvesting

(Phys.org) -- Mechanical energy is all around us, whether in the form of a vehicle's vibrations, ocean waves, or vibrating train tracks. However, much of this energy is irregular and oscillatory - for example, road bumps ...

Technology / Engineering

created Apr 25, 2012 | popularity 4.9 / 5 (9) | comments 26 | with audio podcast report

Rational design can improve hydrogen fuel cell efficiency

(PhysOrg.com) -- Hydrogen fuel cells, in which the chemical energy of hydrogen is converted into electricity, offer the potential for a wide variety of applications, especially in transportation and power ...

Chemistry / Materials Science

created Feb 29, 2012 | popularity 4.4 / 5 (12) | comments 0 | with audio podcast feature

How Much Energy Goes Into Making a Bottle of Water?

(PhysOrg.com) -- Most people who buy bottled water have access to clean drinking water virtually for free (in the US, tap water costs less than a penny per gallon, on average). Nevertheless, the consumption ...

Space & Earth / Environment

created Mar 17, 2009 | popularity 4 / 5 (60) | comments 39 feature

Energy harvesters transform waste into electricity

Billions of dollars lost each year as waste heat from industrial processes can be converted into electricity with a technology being developed at the Department of Energy's Oak Ridge National Laboratory.

Technology / Energy & Green Tech

created May 16, 2011 | popularity 5 / 5 (6) | comments 22 | with audio podcast

EGG-energy brings power to Africa with battery subscription service

(PhysOrg.com) -- By applying the NetFlix model of movie swapping to batteries, a team of researchers and students from MIT and Harvard is hoping to provide electricity to thousands of homes in Tanzania. Their ...

Technology / Energy & Green Tech

created Jan 12, 2010 | popularity 4.9 / 5 (12) | comments 3 | with audio podcast weblog

Warm-blooded dinosaurs worked up a sweat

(PhysOrg.com) -- Were dinosaurs endothermic (warm-blooded) like present-day mammals and birds or ectothermic (cold-blooded) like present-day lizards? The implications of this simple-sounding question go beyond ...

Biology / Plants & Animals

created Nov 11, 2009 | popularity 5 / 5 (6) | comments 1

Faster searches key to a greener web

(PhysOrg.com) -- Faster internet search engine processors could be the key to reducing the environmental impact of the worldwide web, according to scientists at the University of Glasgow.

Technology / Computer Sciences

created Aug 31, 2009 | popularity 3.4 / 5 (8) | comments 1

Homeowners, small businesses install turbines to cut long-term energy costs

Steve and Sue Kirkham's home sits atop a hill where the wind can be strong enough to mute conversations and rattle lawn chairs. Instead of complaining, they decided to harness its power.

Technology / Energy & Green Tech

created Apr 25, 2009 | popularity 4.6 / 5 (25) | comments 14

Long-necked dinos didn't reach for the skies

A fondly-held belief about long-necked sauropods, the giant four-footed dinosaurs beloved of monster movies and children, is most probably untrue, a dino expert said on Wednesday.

Biology / Plants & Animals

created Mar 31, 2009 | popularity 4.8 / 5 (8) | comments 22

Calculating the cost of advanced manufacturing

For Tim Gutowski, advanced manufacturing is an opportunity not just to boost employment, but also to improve the environment.

Technology / Engineering

created Mar 22, 2012 | popularity 4.5 / 5 (2) | comments 1 | with audio podcast

Researchers discover potential key to lowering energy costs of cell phones and data centers

(PhysOrg.com) -- A systematic analysis of power usage in microprocessors could help lower the energy consumption of both small cellphones and giant data centers, report computer science professors from The University of Texas ...

Technology / Computer Sciences

created Feb 09, 2012 | popularity not rated yet | comments 0 | with audio podcast

A big leap toward lowering the power consumption of microprocessors

The first systematic power profiles of microprocessors could help lower the energy consumption of both small cell phones and giant data centers, report computer science professors from The University of Texas ...

Technology / Computer Sciences

created Jan 20, 2012 | popularity 4.4 / 5 (14) | comments 4 | with audio podcast

Chemically scrubbing CO2 from the air too expensive

(PhysOrg.com) -- While it is possible to chemically scrub carbon dioxide from Earth's atmosphere in order to lessen the severity of global warming, the process is prohibitively expensive for now. Best to focus ...

Space & Earth / Environment

created Dec 12, 2011 | popularity 5 / 5 (7) | comments 63 | with audio podcast

Fast, cheap, and accurate: Detecting CO2 with a fluorescent twist

Detecting specific gases in the air is possible using a number of different existing technologies, but typically all of these suffer from one or more drawbacks including high energy cost, large size, slow detection speed, ...

Chemistry / Materials Science

created Sep 04, 2011 | popularity 4.5 / 5 (2) | comments 0 | with audio podcast

Solar panels keep buildings cool

Those solar panels on top of your roof aren't just providing clean power; they are cooling your house, or your workplace, too, according to a team of researchers led by Jan Kleissl, a professor of environmental ...

Technology / Energy & Green Tech

created Jul 18, 2011 | popularity 5 / 5 (6) | comments 7 | with audio podcast