What is mass?

  • (noun): An ill-structured collection of similar things (objects or people).
    See also — Additional definitions below


In physics, mass (from Greek μᾶζα "barley cake, lump (of dough)"), more specifically inertial mass, is a quantitative measure of an object's resistance to acceleration. In addition to this, gravitational mass is a measure of magnitude of the gravitational force which is

Read more about Mass.

Some articles on mass:

Unsprung Mass
... with a suspension, the unsprung weight (or the unsprung mass) is the mass of the suspension, wheels or tracks (as applicable), and other components ... The mass of the body and other components supported by the suspension is the sprung mass.) Unsprung weight includes the mass of components such as the wheel axles, wheel bearings ...
Double Pendulum - Analysis
... limbs are taken to be identical compound pendulums of length and mass, and the motion is restricted to two dimensions ... In a compound pendulum, the mass is distributed along its length ... If the mass is evenly distributed, then the center of mass of each limb is at its midpoint, and the limb has a moment of inertia of about that point ...
Ordo Templi Orientis - Structure - O.T.O. Bodies
... They are encouraged to celebrate the Gnostic Mass ... be capable of initiating through the III° and are required to perform the Gnostic Mass six times yearly ... Lodges are expected to celebrate the Gnostic Mass on a regular basis, work towards establishing a permanent temple, and have the ability to initiate through IV°/P ...
Origin of Mass
... In theoretical physics, a mass generation mechanism is a theory which attempts to explain the origin of mass from the most fundamental laws of physics ... models have been proposed which advocate different views at the origin of mass ... The problem is complicated by the fact that the notion of mass is strongly related to the gravitational interaction but a theory of the latter has ...
Exotic Matter - Imaginary Mass
... A hypothetical particle with imaginary rest mass would always travel faster than the speed of light ... There is no confirmed existence of tachyons If the rest mass is imaginary this implies that the denominator is imaginary since the total energy is an observable ... In quantum field theory, imaginary mass would induce tachyon condensation ...

More definitions of "mass":

  • (noun): A sequence of prayers constituting the Christian eucharistic rite.
    Example: "The priest said Mass"
  • (noun): The property of a body that causes it to have weight in a gravitational field.
  • (noun): A body of matter without definite shape.
    Example: "A huge ice mass"
  • (noun): (Roman Catholic Church and Protestant Churches) the celebration of the Eucharist.
  • (adj): Occurring widely (as to many people).
    Example: "Mass destruction"
    Synonyms: large-scale
  • (noun): A musical setting for a Mass.
    Example: "They played a Mass composed by Beethoven"
  • (verb): Join together into a mass or collect or form a mass.
    Example: "Crowds were massing outside the palace"
  • (noun): The property of something that is great in magnitude.
    Example: "He received a mass of correspondence"
    Synonyms: bulk, volume

Famous quotes containing the word mass:

    All great art, and today all great artlessness, must appear extreme to the mass of men, as we know them today. It springs from the anguish of great souls. From the souls of men not formed, but deformed in factories whose inspiration is pelf.
    Alexander Trocchi (1925–1983)

    Like Freud, Jung believes that the human mind contains archaic remnants, residues of the long history and evolution of mankind. In the unconscious, primordial “universally human images” lie dormant. Those primordial images are the most ancient, universal and “deep” thoughts of mankind. Since they embody feelings as much as thought, they are properly “thought feelings.” Where Freud postulates a mass psyche, Jung postulates a collective psyche.
    Patrick Mullahy (b. 1912)

    ... in the happy laughter of a theatre audience one can get the most immediate and numerically impressive guarantee that there is nothing in one’s mind which is not familiar to the mass of persons living at the time.
    Rebecca West (1892–1983)