Gödel's incompleteness theorems are two theorems of mathematical logic that are concerned with the limits of provability in formal axiomatic theories. These results, published by Kurt Gödel in 1931, are important both in mathematical logic and in the philosophy of mathematics.The theorems are widely, but not universally, interpreted as showing that Hilbert's program to find a …

Earth's magnetic field, also known as the geomagnetic field, is the magnetic field that extends from Earth's interior out into space, where it interacts with the solar wind, a stream of charged particles emanating from the Sun.The magnetic field is generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in Earth's outer core: these ...

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In ontology and the philosophy of mind, a non-physical entity is an object that exists outside physical reality. The philosophical schools of idealism and dualism assert that such entities exist, while physicalism asserts that they do not. Positing the existence of non-physical entities leads to further questions concerning their inherent nature and their relation to physical entities.

Quantum chemistry computer programs are used in computational chemistry to implement the methods of quantum chemistry.Most include the Hartree–Fock (HF) and some post-Hartree–Fock methods. They may also include density functional theory (DFT), molecular mechanics or semi-empirical quantum chemistry methods.The programs include both open source and …

In physics, horror vacui, or plenism (/ ˈ p l iː n ɪ z əm /), commonly stated as "nature abhors a vacuum", is a postulate attributed to Aristotle, who articulated a belief, later criticized by the atomism of Epicurus and Lucretius, that nature contains no vacuums because the denser surrounding material continuum would immediately fill the rarity of an incipient void.

The universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy.The Big Bang theory is the prevailing cosmological description of the development of the universe. According to this theory, space and time emerged together 13.787 ± 0.020 billion years ago, and the universe has been expanding ever since the Big Bang.

In physics and materials science, elasticity is the ability of a body to resist a distorting influence and to return to its original size and shape when that influence or force is removed. Solid objects will deform when adequate loads are applied to them; if the material is elastic, the object will return to its initial shape and size after removal. This is in contrast to plasticity, in which ...

Hardware-ul este partea fizică a unui sistem informatic, constituită din ansamblul de componente electrice, electronice și mecanice care împreună pot primi, prelucra, stoca și reda informații, sub diverse forme de semnale electrice, acustice sau optice, spre deosebire de software, care este partea logică — cea care comandă hardware-ul prin intermediul unor programe (aplicații ...

În fizică cele mai folosite sunt căldurile molare la volum constant (C v) și la presiune constantă (C p) care se definesc prin cantitatea de căldură necesară încălzirii cu un grad a unui mol de gaz când se menține constant volumul, respectiv presiunea.

Physical therapy (PT), also known as physiotherapy, is one of the allied health professions. It is provided by physical therapists who promote, maintain, or restore health through physical examination, diagnosis, management, prognosis, patient education, physical intervention, rehabilitation, disease prevention, and health promotion. Physical therapists are known as …

O mărime fizică este o proprietate a unei stări sau a unui proces ale unui sistem fizic, care este observabilă și măsurabilă, deci exact cuantificabilă. Exemple de măsurabile sunt: spațiul , timpul , temperatura , forța , presiunea , ș.a.m.d. Mărimea fizică are o determinare cantitativă ( valoarea numerică ) și una calitativă ...

Toggle Descrierea fizică: subsection 4.1 Exterior. 4.2 Detalii de interior. 5 Note. 6 Bibliografie. Toggle the table of contents ... Puteți ajuta Wikipedia prin completarea lui Ultima editare a paginii a fost efectuată la 21 noiembrie 2022, ora 17:10. Acest text este disponibil ...

A physical data model (or database design) is a representation of a data design as implemented, or intended to be implemented, in a database management system.In the lifecycle of a project it typically derives from a logical data model, though it may be reverse-engineered from a given database implementation. A complete physical data model will include all the database artifacts …