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elevation
Science; Basic science
The height of a point on the Earth's surface above sea level is called its elevation.
absolute zero
Science; Basic science
The temperature at which an ideal gas would exert no pressure. The Kelvin scale of temperatures is defined in terms of the triple point of water, T 3 =273.16° (where the solid, ...
acceleration
Science; Basic science
The time rate of change of velocity. Since velocity is a directed or vector quantity involving both magnitude and direction, a velocity may change by a change of magnitude ...
aerodynamic sound
Science; Basic science
Sound that is generated by the unsteady motion of a gas and its interaction with surrounding surfaces. Aerodynamic sound or noise may be pleasant, such as the sound generated by a ...
neutron star
Science; Basic science
These are born when a giant star runs out of fuel and its core collapses.
dalton
Science; Basic science
It is a unit of mass, as the mass of a hydrogen atom measured in grams. It is reciprocal of Avagadro's number.
nanosecond
Science; Basic science
Its a billionth of a second. The speed of memory chip and other computer operations are measured in nanoseconds.
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