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Fa- Façade
- Any important face of a building, usually the principal front with the main entrance.
- Face
- To machine a flat surface as in the end of a shaft in the lathe.
- Face Centred Cubic
- Roughly 20% of the elements crystallize with face centred cubic structures.
- Face Milling
- Milling a large flat surface with a milling cutter that operates in a plane that is at right angles to its axis.
- Faceplate
- A large circular plate with slots and holes for mounting the workpiece to be machined. It is attached to the headstock of a lathe.
- Facing
- The process of making a flat or smooth surface on the end of a piece of material.
- Factorial
- Definition of factorial.
- Faculae
- Bright granular structures on the surface of the Sun that are slightly hotter than the surrounding photosphere.
- Facultative Anaerobe
- An organism that can live in both aerobic and anaerobic conditions.
- Fahrenheit
- On the Fahrenheit scale 0°C = 32°F and 100°C = 212°F
- Failure
- The event, or inoperable state, in which any item or part of an item does not, or would not, perform as previously specified.
- Failure Mode and Effects Analysis
- A procedure by which each potential failure mode of a system is analyzed to determine the effects on the system and classify each potential failure mode according to its severity.
- Faint Young Sun Paradox
- Calculations suggest that at about the time of the formation of Earth, the Sun was roughly two-thirds the brightness that it is now. However, there is no geological evidence.
- Famous Scientists & Engineers
- Lists all the Famous Scientists & Engineers in the Encyclopaedia
- Famous Scientists & Engineers Books
- Lists all Famous Scientists & Engineers Books in the Encyclopaedia
- Famous Scientists & Engineers Weblinks
- Lists all Famous Scientists & Engineers Weblinks in the Encyclopaedia
- Fan Noise
- For small fans such as those used on electric motors the noise generated by their centrifugal cooling fans can be reduced by reducing the fan rotational speed; noise has been shown to increase at a rate of 53 to 64 dB/decade increase of speed.
- Fans
- There are several simple relationships between fan capacity, pressure, speed, and power, which are referred to as the fan laws.
- Far Field
- The distribution of sound energy at a very much greater distance from a sources than the linear dimensions of the source and in which the sound waves can be considered to be plane waves.
- Farad
- The SI unit of capacitance.
- Faraday
- Quantity of electrical charge associated with one mole of chemical charge equal to 96485.3C
- Faraday Constant
- F = 9.648456x104 Cmol-1
- Faraday Effect
- The generation of a voltage by a coil when the coil is subjected to a changing magnetic field.
- Farsightedness
- Hyperopia. Images of distant objects are formed beyond the retina.
- Fast Fourier Transform
- An algorithm, or digital calculation routine, that efficiently calculates the discrete Fourier transform from the sampled time waveform.
- Fata Morgana
- A complex mirage display that involves multiple images.
- Fathom
- An old unit of length more normally used to measure the depth of water.
- Fatigue
- An important mode of failure of engineering components subjected to dynamic stresses.
- Fatigue Limit
- In fatigue testing, the number of cycles which may be withstood without failure at a particular level of stress.
- Fatigue Resistance
- The ability of a material to withstand repeated and varying loads.
- Faying Surface
- That surface of a member that is in contact with another member to which it is joined.
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