Ke
- KE
- Abbreviation of Kinetic Energy, the energy that a body possesses solely because it is moving.
- Keir Metal
- Brass containing 55% copper, 40% zinc and 5% iron. Patented in 1779 by James Keir (Chemist, Geologist, Industrialist and Inventor) and used for the manufacture of window frames.
- Kelvin
- The kelvin is the unit of thermodynamic temperature.
- Kelvin Wedge
- For waves in the wake of a boat (gravity waves). In this case the wedge semi-angle is independent of the speed of the body.
- Kelvin, William Thomson
- British physicist known for his pioneering work in thermodynamics and electricity.
- Kelvin-Planck statement
- No process is possible whose sole result is the absorption of heat from a reservoir
and the conversion of all of this heat into work.
- Kepler, Johannes
- German astronomer and mathematics teacher who formulated laws that formed the groundwork of Newton′s discoveries, and are the starting point of modern astronomy.
- Keplers Laws
- Kepler found three laws defining the orbit of planets.
- Kerf
- The space from which metal has been removed by a cutting process.
- Kerr Black Hole
- A rotating black hole.
- Kerr Cell
- A Kerr Cell is most commonly used as a Q-Switch device in pulsed lasers
- Kerr Effect
- The ability of certain substances to differently refract light waves whose vibrations are in different directions when the substance is placed in an electric field.
- Ketone
- Compunds containing a carbonyl group (-CO-) attached to two hydrocarbon radicals. The simplest ketone is acetone (CH3COCH3).
- Ketosis
- A metabolic condition in which the concentration of ketone bodies in the blood, tissues, and urine is abnormally high.
- keV
- Abbreviation of kilo electron volts, one thousand electron volts.
- Key
- An element used to connect a rotating machine element to a shaft.
- Key Clicks
- Interference in the form of "clicks" or "thumps" caused by the sudden application or removal of power.
- Keyboard
- An input device, partially modeled after the typewriter keyboard, which uses an arrangement of buttons or keys, to act as mechanical levers or electronic switches.
- Keyed Joint
- A joint in which one structural member is keyed or notched into an adjoining member as in timber construction.
- Keystone
- The central stone in an arch, and begins the distribution of the vertical load forces down and around the arch.