To
- TOE
- Abbreviation of the unit of energy Tonne of Oil Equivalent.
- Toe-In
- Setting the front wheels to toe in will mean that when driven the wheels will tend to be aligned.
- Toe-Out
- Setting the front wheels of a front wheel drive car to toe out will mean that when driven the wheels will tend to be aligned.
- Toeplitz Matrix
- A matrix in which all the elements are the same along any diagonal that slopes from northwest to southeast.
- Toggle
- A word meaning to reverse or complement the state of something.
- Toggle Clamps
- Hand operated lever clamps which can quickly apply pressure and just as easily release it.
- Tokamak
- The leading magnetic confinement fusion concept named after a Russian word for toroidally (or doughnut) shaped magnetic field.
- Token Ring
- A data communication protocol developed by IBM in which computers access the network through token-passing.
- Tolerance
- The maximum permissible deviation from the specified quantity.
- Toluene
- Also known as methylbenzene or toluol it is used as a solvent and as an intermediate for its derivatives.
- Toluol
- Also known as toluene.
- Tombac
- A brass alloy 88% copper and 12% zinc.
- Tommy Bar
- A rod which is inserted into the holes of a box spanner.
- Tomography
- Mathematical techniques for reconstructing three dimensional volumes from the integrated projections along rays.
- Ton
- A derived unit of mass in the British system of units, 1 ton = 2240 lb
- Ton Force
- 1 ton-force = 9964.02 N
- Ton Refrigeration Unit
- Unit which removes same amount of heat in 24 hours as melting of 1 ton of ice.
- Tonal Colour
- These can be partially quantified using the metrics sharpness, roughness, fluctuation strength, tonality and pitch.
- Tonality
- Tone-to-noise ratio, which is determined from the ratio of the sound pressure level of the tone to the sound pressure level of the noise in the critical band centred at the frequency of the tone but without the tone itself.
- Tone
- A sound of definite pitch. A pure tone has a sinusoidal wave form.
- Tone Burst
- A short signal used in acoustical measurements to make possible differentiating desired signals from spurious reflections.
- Tone Terminal Set
- Equipment that converts TTY dc pulses into audio tones for modulation of a transmitter in audio-frequency-tone shift transmissions.
- tonf
- Abbreviation for ton force, 1 tonf=9964.02 N.
- tonf in-2
- Abbreviation of Tons per Square Inch.
- Tongue and Groove
- A joinery method where a board has a protruding tongue on one edge and a groove on the other, the tongue of one board fits into the groove of the next.
- Tonne
- A derived SI Unit of mass. Through common usage the 1000kg has been named the Tonne.
- Tonne of Oil Equivalent
- A unit of energy equal to 41.868 GJ
- Tons per Square Inch
- Old imperial unit of pressure, abbreviated as Tsi or tonf in-2.
- Tool Steel
- Any steel used o make tools for cutting, forming, or otherwise shaping a material into a final part.
- Toolbox
- A box design to protect and allow a set of tools to be carried around.
- Tools
- Lists all Tools topics in the Encyclopaedia
- Tools Weblinks
- Lists all Tools Weblinks in the Encyclopaedia
- Toothed Belt Drive
- The toothed belt is very efficient and does not allow any slip.
- Top
- The flavor of the sixth quark.
- Top Dead Centre
- The position of the crank when the piston is in its farthest position from the crankshaft.
- Top Hat Antenna
- An antenna that is centre-fed and capacitively loaded.
- Topography
- The configuration of a surface, including its relief and the position of its natural and man-made features.
- Topple
- The vertical component of precession or wander, or the algebraic sum of the two.
- Toppler Axis
- That horizontal axis, perpendicular to the spin axis of a gyroscope, around which topple occurs.
- Torch Brazing
- Bonding is produced by heating with a gas flame and by using a nonferrous filler metal having a melting point above 427°C.
- Toroidal
- Having the specific geometrical shape of a torus.
- Torque
- The torque or turning moment acting on a body is defined as the product of the magnitude of the force and the perpendicular distance of the line of action of the force from the axis about which the body is being rotated.
- Torque Converter
- A fluid coupling used in automatic transmissions to transmit power from the engine to the wheels.
- Torque Differential Receiver
- A type of differential synchro that takes two electrical inputs, one to the rotor and one to the stator, and produces a mechanical output.
- Torque Multiplier
- A gearbox used to increase the torque produced by a small hand wrench.
- Torque Steer
- A tendency for a car to turn in a particular direction when power is applied.
- Torque to Power
- Calculate power in PS given a torque in Nm at a given speed.
- Torque Wrench
- A manual wrench which incorporates a gauge or other method to indicate the amount of torque transferred to the nut or bolt.
- torr
- A unit of pressure equal to 1mmHg.
- Torsion
- An action that twists a material.
- Torsion Bar
- A type of spring that twists as it is compressed or stretched.
- Torsion Test
- Method for determining behavior of materials subjected to twisting loads.
- Torsional Deformation
- Angular displacement of specimen caused by a specified torque in torsion test.
- Torsional Modulus of Elasticity
- Modulus of elasticity of material subjected to twist loading.
- Torsional Strain
- Strain corresponding to a specified torque in the torsion test.
- Torsional Strength
- Measure of the ability of a material to withstand a twisting load.
- Torsional Stress
- Shear stress developed in a material subjected to a specified torque in torsion test.
- Torsional Vibration
- Vibration involving twisting or rotation of a component or structure about
one of its axes.
- Torus
- A geometric solid in the shape of a doughnut.
- Total
- The overall sum of numbers or a quantity.
- Total Dynamic Head
- Dynamic discharge head plus dynamic suction lift, or dynamic discharge head minus dynamic suction head.
- Total Harmonic Distortion
- The RMS value of the distortion appearing at multiples of the input frequency to the RMS value of the input sine wave.
- Total Hydrocarbons
- All of the hydrocarbon emissions from an internal combustion engine.
- Total Impulse
- The integral of the thrust over an interval of time.
- Total Indicated Reading
- The full indicator reading observed when a dial indicator is in contact with the part surface during one full revolution of the part about its axis of rotation.
- Total Internal Reflection
- When light is traveling from a material with a higher index of refraction into one with a lower index of refraction, if the angle of incidence exceeds the critical angle, the light is totally reflected.
- Total Pressure
- Another name for Dynamic Pressure.
- Touchpad
- A pressure-sensitive pad which replaces the mouse on most laptop computers.
- Touchstone
- A touchstone is a device for roughly ascertaining the purity of gold alloys.
- Toughness
- Ability of a metal to absorb energy and deform plastically before fracturing.
- Tow
- An untwisted bundle of continuous filaments.
- Towering Cumulus
- Another name for cumulus congestus.
- Toxic Emission
- Any pollutant emitted from a source that can negatively affect human health or the environment.
- Toxic Substance
- A generic term referring to a harmful substance or group of substances.
- Toxic Vapours
- Vapors emitted by a substance that can do bodily harm.
- Toxicology
- The study of poisons, including identification, isolation, biological effects, mechanism of action, and development of antidotes.
- toz
- Symbol for the troy ounce.