Formation fluid refers to the naturally occurring liquids and gases contained in geologic formations.

Anticipation of future power generation requirements from a power source.

Forensic engineering has been defined as "the investigation of failures - ranging from serviceability to catastrophic - which may lead to legal activity, including both civil and criminal".

Forced induction is the process of delivering compressed air to the intake of an internal combustion engine.

System that conditions a space by circulating air through a heat exchanger or fan coil.

The measured area that a building, machine or power plant covers on the ground.

Force is a vector quantity, which means that it has a magnitude and a direction.

The foot-pound force is a unit of work or energy in the engineering and gravitational systems in United States customary and imperial units of measure.

Food versus fuel is the dilemma regarding the risk of diverting farmland or crops for biofuels production to the detriment of the food supply.

Food energy is chemical energy that animals (including humans) derive from their food and molecular oxygen through the process of cellular respiration.

A foil is a solid object with a shape such that when placed in a moving fluid at a suitable angle of attack the lift (force generated perpendicular to the fluid flow) is substantially larger than the drag (force generated parallel to the fluid flow).

Inlet air fogging consists of spraying finely atomized water (fog) into the inlet airflow of a gas turbine engine.

Flywheel energy storage (FES) works by accelerating a rotor (flywheel) to a very high speed and maintaining the energy in the system as rotational energy.

A flywheel is a mechanical device specifically designed to use the conservation of angular momentum so as to efficiently store rotational energy.

In the flyer winding method, a winding is produced by feeding the wire via a roll or through a nozzle that is attached to a flyer that is rotating at a certain distance from the coil.

An antistatic agent is a compound used for treatment of materials or their surfaces in order to reduce or eliminate buildup of static electricity.

A thin coating of a material, which reduces the light reflection and increases light transmission, applied to a photovoltaic cell surface.

An antifreeze is an additive which lowers the freezing point of a water-based liquid.

The anti-nuclear movement is a social movement that opposes various nuclear technologies.

Anti-environmentalism is a movement that favors loose environmental regulation in favor of economic benefits and opposes strict environmental regulation aimed at preserving nature and the planet.