Crossword clues for statics
Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Mechanics \Me*chan"ics\, n. [Cf. F. m['e]canique.] That science, or branch of applied mathematics, which treats of the action of forces on bodies.
Note: That part of mechanics which considers the action of forces in producing rest or equilibrium is called statics; that which relates to such action in producing motion is called dynamics. The term mechanics includes the action of forces on all bodies, whether solid, liquid, or gaseous. It is sometimes, however, and formerly was often, used distinctively of solid bodies only: The mechanics of liquid bodies is called also hydrostatics, or hydrodynamics, according as the laws of rest or of motion are considered. The mechanics of gaseous bodies is called also pneumatics. The mechanics of fluids in motion, with special reference to the methods of obtaining from them useful results, constitutes hydraulics.
Animal mechanics (Physiol.), that portion of physiology which has for its object the investigation of the laws of equilibrium and motion in the animal body. The most important mechanical principle is that of the lever, the bones forming the arms of the levers, the contractile muscles the power, the joints the fulcra or points of support, while the weight of the body or of the individual limbs constitutes the weight or resistance.
Applied mechanics, the principles of abstract mechanics applied to human art; also, the practical application of the laws of matter and motion to the construction of machines and structures of all kinds.
orbital mechanics, the principles governing the motion of bodies in orbit around other bodies under gravitational influence, such as artificial Earth satellites.
Douglas Harper's Etymology Dictionary
branch of mechanics which treats of stresses and strains, 1650s, from Modern Latin statica (see static); also see -ics. Related: Statical; statically.
Wiktionary
n. (context physics English) The branch of mechanics concerned with forces in static equilibrium
WordNet
n. the branch of mechanics concerned with forces in equilibrium
Wikipedia
Statics is the branch of mechanics that is concerned with the analysis of loads ( force and torque, or "moment") acting on physical systems that do not experience an acceleration (a=0), but rather, are in static equilibrium with their environment. When in static equilibrium, the acceleration of the system is zero and the system is either at rest, or its center of mass moves at constant velocity. The application of Newton's second law to a system gives:
$$\textbf F = m \textbf a \, .$$
Where bold font indicates a vector that has magnitude and direction. F is the total of the forces acting on the system, m is the mass of the system and a is the acceleration of the system. The summation of forces will give the direction and the magnitude of the acceleration will be inversely proportional to the mass. The assumption of static equilibrium of a = 0 leads to:
$$\textbf F = 0 \, .$$
The summation of forces, one of which might be unknown, allows that unknown to be found. Likewise the application of the assumption of zero acceleration to the summation of moments acting on the system leads to:
$$\textbf M = I \alpha = 0\, .$$
Here, M is the summation of all moments acting on the system, I is the moment of inertia of the mass and α = 0 the angular acceleration of the system, which when assumed to be zero leads to:
$$\textbf M = 0 \, .$$
The summation of moments, one of which might be unknown, allows that unknown to be found. These two equations together, can be applied to solve for as many as two loads (forces and moments) acting on the system.
From Newton's first law, this implies that the net force and net torque on every part of the system is zero. The net forces equaling zero is known as the first condition for equilibrium, and the net torque equaling zero is known as the second condition for equilibrium. See statically determinate.
Usage examples of "statics".
Being himself heir to a large property, he was especially struck by the position taken up by Spencer in Social Statics, that justice forbids private landholding, and with the straightforward resoluteness of his age, had not merely spoken to prove that land could not be looked upon as private property, and written essays on that subject at the university, but had acted up to his convictions, and, considering it wrong to hold landed property, had given the small piece of land he had inherited from his father to the peasants.
In that year, while still at the University, he had read Spencer's Social Statics, and Spencer's views on landholding especially impressed him, as he himself was heir to large estates.
As to the second course, that of denying those clear and unanswerable proofs of the injustice of landholding, which he had drawn from Spencer's Social Statics, and the brilliant corroboration of which he had at a later period found in the works of Henry George, such a course was impossible to him.
An entire system of mysterious statics is daily practised by prisoners, men who are forever envious of the flies and birds.
These are Mechanics, Statics, HydroStatics, Hydrodynamics, Navigation, Astronomy, Geography, Optics, Pneumatics, Acoustics.
That house of cards made it possible for us to sit back with folded hands, and even the skeptical Oskar, who was quite familiar with the rules of statics governing the construction of card houses, was enabled to forget the acrid smoke and stench that crept, in wisps and coils, through the cracks in the door, making it seem as though the little room with the card house in it were right next door and wall to wall with hell.
In technical practice, as is well known, this theorem is used for countless calculations, in both statics and dynamics, and indeed more frequently not in the form given here but in the converse manner, when a single known force is resolved into two component forces.
One of the women and one of the feds went with a couple of Statics to the pumpkin field.
There was a lot to be said for stillness (relative stillness), Can o' Beans conceded, a statics characterized not so much by an absence of ability to move as by a serene balance of forces.