Wiktionary
n. (context physics English) The portion of the physical universe chosen for analysis, with everything outside the system known as the environment.
Wikipedia
In physics, a physical system is a portion of the physical universe chosen for analysis. Everything outside the system is known as the environment. The environment is ignored except for its effects on itself. In a physical system, a lower probability states that the vector is equivalent to a higher complexity.
The split between system and environment is the analyst's choice, generally made to simplify the analysis. For example, the water in a lake, the water in half of a lake, or an individual molecule of water in the lake can each be considered a physical system. An isolated system is one that has negligible interaction with its environment. Often a system in this sense is chosen to correspond to the more usual meaning of system, such as a particular machine.
In the study of quantum coherence the "system" may refer to the microscopic properties of an object (e.g. the mean of a pendulum bob), while the relevant "environment" may be the internal degrees of freedom, described classically by the pendulum's thermal vibrations.
Usage examples of "physical system".
In yogic practice also an electrical phenomenon generally occurs And when the Power descends some sort of electrical vibrations take place in the physical system.
Although the details are a little complicated, this number, roughly speaking, counts the possible rearrangements of the ingredients in a given physical system that leave its overall appearance intact.
It is possible that a physical system might be so simple that this meagre information would suffice to settle its fate.
Certain basic components of our physical system defy precise measurement and definition.
Some people model memory as a node-and-network system, so it's possible the palace-of-memory method intuitively echoes the physical system involved.
All life is energy, and fitting neatly into the physical system is the ENERGY COUNTERPART, which mirrors it on the non-physical plane.
It was to be several months before, together, we brought about a really positive change by strengthening his mind energy and boosting his depleted physical system.
Many forms of physical system are analogous in that they involve quantities playing similar roles, related by the same kinds of mathematical equations.
All life is energy, and the energy counterpart fits neatly into the physical system, mirroring it on the non-physical plane.
Had the near side enclosed the far side for billions of yearsor had Luminous broken new ground, actively extending the near side into mathematical territory that had never been tested by any physical system before.
But it was in the service of understanding a real physical system-not a novel experience for its own sake.
But it was in the service of understanding a real physical system—.
Had the near side enclosed the far side for billions of years-or had Luminous broken new ground, actively extending the near side into mathematical territory that had never been tested by any physical system before?
In a similar way, even though in the development of any physical system there may by billions of years between the creation of the most primitive form of energy and then the arrival of intelligent life, that billions of years is just the same things as the trip of that current around the wire.