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Maglev track could launch spacecraft into orbit

(PhysOrg.com) -- With the aim to make it easier to launch spacecraft into low Earth orbit (LEO), two researchers have turned to maglev technology to catapult a payload hundreds of miles above the Earth. While ...

Space & Earth / Space Exploration

created Mar 13, 2012 | popularity 4.4 / 5 (58) | comments 37 | with audio podcast report

Futuristic cars are coming faster than you think

Cars that drive themselves are not just the stuff of sci-fi movies. The technology is real, the cars can now drive legally and the debate is starting on whether society is better off when software is behind the wheel.

Technology / Hi Tech & Innovation

created Apr 13, 2012 | popularity 4.7 / 5 (30) | comments 26

Solar thermal process produces cement with no carbon dioxide emissions

(Phys.org) -- While the largest contributor to anthropogenic greenhouse gas emissions is the power industry, the second largest is the more often overlooked cement industry, which accounts for 5-6% of all ...

Chemistry / Materials Science

created Apr 10, 2012 | popularity 4.6 / 5 (25) | comments 22 | with audio podcast report

Nanotrees harvest the sun's energy to turn water into hydrogen fuel

(PhysOrg.com) -- University of California, San Diego electrical engineers are building a forest of tiny nanowire trees in order to cleanly capture solar energy without using fossil fuels and harvest it for ...

Nanotechnology / Nanophysics

created Mar 07, 2012 | popularity 5 / 5 (21) | comments 4 | with audio podcast

Stockholm techies use water to charge mobile phones

(PhysOrg.com) -- A Swedish company headquartered in Stockholm has figured out how to power smartphones using a system that includes some water, a tray, a little round container, and an eyeglass case styled ...

Technology / Energy & Green Tech

created Jan 12, 2012 | popularity 4.2 / 5 (22) | comments 18 | with audio podcast report

The case of the missing gas mileage

Contrary to common perception, the major automakers have produced large increases in fuel efficiency through better technology in recent decades. There’s just one catch: All those advances have barely ...

Technology / Energy & Green Tech

created Jan 04, 2012 | popularity 4.1 / 5 (22) | comments 63 | with audio podcast

Chemists find new material to remove radioactive gas from spent nuclear fuel

(PhysOrg.com) -- Research by a team of Sandia chemists could impact worldwide efforts to produce clean, safe nuclear energy and reduce radioactive waste.

Chemistry / Materials Science

created Jan 24, 2012 | popularity 4.5 / 5 (19) | comments 13 | with audio podcast

Superbugs from space offer new source of power

Bacteria normally found 30km above the earth have been identified as highly efficient generators of electricity.

Biology / Biotechnology

created Feb 21, 2012 | popularity 4.3 / 5 (20) | comments 10 | with audio podcast

Global carbon emissions reach record 10 billion tons -- threatening 2 degree target

Global carbon dioxide emissions from burning fossil fuels have increased by 49 per cent in the last two decades, according to the latest figures by an international team, including researchers at the Tyndall Centre for Climate ...

Space & Earth / Environment

created Dec 04, 2011 | popularity 4 / 5 (21) | comments 46 | with audio podcast

Delphi gasoline-injection engine technique rivals hybrid's edge

(Phys.org) -- Running a diesel like engine on gasoline is something Delphi is doing in notable fashion. They claim they are on to a promising way to enjoy an engine that gives the vehicle owner high efficiency ...

Technology / Energy & Green Tech

created May 21, 2012 | popularity 4.7 / 5 (18) | comments 40 | with audio podcast report

Breakthrough holds promise for hydrogen's use as fuel source

(PhysOrg.com) -- Imagine your car running on an abundant, environmentally friendly fuel generated from the surrounding atmosphere. Sounds like science fiction, but UT Dallas researchers recently published ...

Chemistry / Materials Science

created Oct 27, 2011 | popularity 4.1 / 5 (20) | comments 10 | with audio podcast

Novel solar reactor may enable clean fuel derived from sunlight

Producing hydrogen from non-fossil fuel sources is a problem that continues to elude many scientists but University of Delaware’s Erik Koepf thinks he may have discovered a solution.

Technology / Energy & Green Tech

created Apr 04, 2012 | popularity 4.3 / 5 (18) | comments 0

Volkswagen Passat sets world record for longest distance on one tank of clean diesel fuel

The world's most fuel-efficient couple has done it again. John and Helen Taylor were determined to break the record for the farthest distance traveled on a single tank of fuel. They decided to attempt the ...

Technology / Energy & Green Tech

created May 11, 2012 | popularity 4.9 / 5 (16) | comments 10 | with audio podcast

Nanosheet catalyst discovered to sustainably split hydrogen from water

(Phys.org) -- Hydrogen gas offers one of the most promising sustainable energy alternatives to limited fossil fuels. But traditional methods of producing pure hydrogen face significant challenges in unlocking ...

Chemistry / Materials Science

created May 10, 2012 | popularity 5 / 5 (15) | comments 57 | with audio podcast

Apple plans nation's biggest private fuel cell energy project in NC

North Carolina will be home to the nation's largest private fuel cell energy project, a nonpolluting, silent power plant that will generate electricity from hydrogen.

Technology / Energy & Green Tech

created Apr 08, 2012 | popularity 3.5 / 5 (21) | comments 55

Fuel

Fuel is any material that is burned or altered to obtain energy and to heat or to move an object. Fuel releases its energy either through a chemical reaction means, such as combustion, or nuclear means, such as nuclear fission or nuclear fusion. An important property of a useful fuel is that its energy can be stored to be released only when needed, and that the release is controlled in such a way that the energy can be harnessed to produce work. Examples: Methane, Petrol and Oil.

All carbon-based life forms—from microorganisms to animals and humans—depend on and use fuels as their source of energy. Their cells engage in an enzyme-mediated chemical process called metabolism that converts energy from food or light into a form that can be used to sustain life. Additionally, humans employ a variety of techniques to convert one form of energy into another, producing usable energy for purposes that go far beyond the energy needs of a human body. The application of energy released from fuels ranges from heat to cooking and from powering weapons to combustion and generation of electricity.

For more information about Fuel, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

Related topics: greenhouse gas emissions , biofuel , oil