Ve
- Vector
- A quantity with a magnitude and a direction.
- Vector Space
- The three dimensional area where vectors can be plotted.
- Vee Engine
- One with two banks of in-line cylinders mounted with an angular separation on a common crankcase.
- Vee Joint
- Tongue and groove boards with their top corners beveled so when the two boards come together a V is formed.
- Veering
- A clockwise shift in the wind direction in the Northern Hemisphere at a certain location. In the Southern Hemisphere, it is counterclockwise.
- Vehicle
- A means of transport, generally meaning an automobile.
- Vehicle Aerodynamic Drag
- Resistance of a vehicle body to motion through the air.
- Vehicle Emissions
- Harmful pollutants to the health and the environment include particulates, hydrocarbons, carbon dioxide, carbon monoxide, ozone, lead, and various oxides of nitrogen.
- Vehicle Noise
- The noise produced by a land based vehicle that is radiated to the surrounding environment (exterior noise) or that is observed by the occupants of the vehicle (interior noise).
- Vein
- A blood vessel that carries blood towards the heart.
- Veitch Diagram
- A diagram consisting of joined squares, which is used to give a graphic
representation of basic logic relations.
- Velocimeter
- A continuous-wave reflection Doppler system used to measure the radial velocity of an object.
- Velocity
- Velocity is a vector quantity that specifies the time rate of change of displacement with respect to a reference frame.
- Velocity Head
- The difference between dynamic pressure and static pressure.
- Velocity Modulation
- Modification of the velocity of an electron beam by the alternate acceleration and deceleration of electrons.
- Velocity of Light in Vacuo
- c = 2.997924580x108 ms-1
- Velocity Pressure
- The difference between dynamic pressure and static pressure.
- Velocity Servosystem
- A servosystem which controls the speed of the load it is driving.
- Velocity Transducer
- An electrical/mechanical transducer whose output is directly proportional to the velocity of the measured unit.
- Vena Contracta
- Point where the flow becomes parallel.
- Veneer
- A thin layer, sheet or facing.
- Venetian Red
- A permanent red pigment composed of ferric oxide and obtained by igniting ferrous sulphate.
- V Engine
- One with two banks of in-line cylinders mounted with an angular separation on a common crankcase.
- Venn Diagram
- A diagram where sets are represented as simple geometric figures, with overlapping and similarity of sets represented by intersections and unions of the figures.
- Vent
- An opening in a vessel or other enclosed space for the removal of gas or vapour.
- Ventilation
- The controlled exchange of air.
- Ventral
- Pertaining to the belly, or the underside of a vehicle.
- Ventricle
- A chamber in the lower part of the heart.
- Venturi
- A short constriction in a tube between two longer tapered portions that are usually of unequal length but terminate with the same diameter.
- Venturi Giovanni
- Italian physicist responsible for the venturi.
- Venturi Tube Meter
- A flow meter used to determine the rate of flow and employing a venturi tube as the primary element for creating differential pressure in flowing gases or liquids.
- Venus
- The second planet from the sun in our solar system
- Verdigris
- A mixture of acetates of copper used in making some green pigments.
- Vermilion
- Mercury Sulphide, used as a red pigment, also known as cinnabar.
- Vernal Equinox
- The point at which the ecliptic intersects the celestial equator. Days and nights are most nearly equal in duration.
- Vernier
- An auxiliary scale, invented by Pierre Vernier, which enables the reading of the smallest divisions of a graduated scale.
- Vernier Caliper
- The vernier caliper provides the three basic functions of inner, outer and depth gauge.
- Vernier Engine
- A small rocket engine that is used for fine adjustment.
- Versus
- As a function of, as distance versus time.
- Vertical
- The direction of gravity at the point of observation.
- Vertical Angles
- Two angles that share a common vertex and whose sides form 2 lines.
- Vertical Axis
- On a graph, the straight line axis that is plotted from bottom to top, the y axis.
- Vertical Circle
- A great circle of the celestial sphere, through the zenith and nadir, perpendicular to the horizon.
- Vertical Deflection Plates
- A pair of parallel electrodes in a CRT that moves the electron beam up and down.
- Vertical Ionization Energy
- The energy required to remove an electron from an atom, molecule, or ion in the gas phase without moving any nuclei.
- Vertical Line
- A line that goes straight up and down, and whose slope is defined as infinite or undefined.
- Vertical Plane
- An imaginary plane that is perpendicular to the horizontal plane.
- Vertically Polarized
- Waves that are radiated with the E field component perpendicular to the surface of the Earth.
- Very High Frequency
- Radio frequencies that are between 30 to 300 MHz.
- Very Large Scale Integration
- An integrated crcuit with 100,000 to 1,000,000 components.
- Very Low Frequency
- Radio Frequencies from 3 kHz to 30 kHz.
- Vestibule
- An entrance to a house that is usually enclosed.
- Vestigial Sideband
- The transmitted portion of the sideband which has been largely suppressed by a transducer.