Oncology & Cancer

Climate change threatens progress in cancer control

Climate change threatens prospects for further progress in cancer prevention and control, increasing exposure to cancer risk factors and impacting access to cancer care, according to a new commentary by scientists from the ...

Medical research

Relieving two headaches with one process

With a new method to synthesize a popular pain-relieving medication from plants rather than fossil fuels, researchers at the Great Lakes Bioenergy Research Center have found a way to relieve two headaches at once.

Health

The right way to fuel up before workouts

(HealthDay)—Mom was right when she said no swimming for an hour after lunch. Even though it takes energy to work out, it's important that exercise doesn't interfere with digestion.

Health

The toxic air we breathe

When we think of health hazards, many things come to mind: bad nutrition, car accidents, addiction to drugs. But one we rarely consider is our exposure to particulate matter in the air we breathe. After all, aside from the ...

page 1 from 6

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.

This text uses material from Wikipedia, licensed under CC BY-SA