ETYM French instant, from Latin instans standing by, being near, present. Related to Instant.
A point in duration; a moment; a portion of time too short to be estimated or measured; also, any particular moment; SYN. moment, flash, second.

Moment, instant

ETYM French moment, Latin momentum, for movimentum movement, motion, moment, from movere to move. Related to Move, Momentum, Movement.
1. A particular point in time; SYN. minute, second, instant.
2. An indefinitely short time; SYN. minute, second, bit.
3. The moment of a couple is the product of its force and the distance between its opposing forces.
4. The n-th moment of a distribution is the expected value of the n-th power of the deviations from a fixed value. + prikaži više

ETYM Latin See Moment.
1. An impelling force or strength; SYN. impulse.
2. The product of a body's mass and its velocity.
In physics, the product of the mass of a body and its linear velocity. The angular momentum of an orbiting or rotating body is the product of its moment of inertia and its angular velocity. The momentum of a body does not change unless it is acted on by an external force; angular momentum does not change unless it is acted upon by a turning force, or torque.
The law of conservation of momentum is one of the fundamental concepts of classical physics. It states that the total momentum of all bodies in a closed system is constant and unaffected by processes occurring within the system. Angular momentum is similarly conserved in a closed system. + prikaži više