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  2. Fundamental interaction - Wikipedia

    en.wikipedia.org/wiki/Fundamental_interaction

    Fundamental interaction. In physics, the fundamental interactions or fundamental forces are the interactions that do not appear to be reducible to more basic interactions. There are four fundamental interactions known to exist in nature: [1] gravity. electromagnetism.

  3. Gravity - Wikipedia

    en.wikipedia.org/wiki/Gravity

    In physics, gravity (from Latin gravitas 'weight' [1]) is a fundamental interaction primarily observed as mutual attraction between all things that have mass.Gravity is, by far, the weakest of the four fundamental interactions, approximately 10 38 times weaker than the strong interaction, 10 36 times weaker than the electromagnetic force and 10 29 times weaker than the weak interaction.

  4. Fifth force - Wikipedia

    en.wikipedia.org/wiki/Fifth_force

    Fifth force. In physics, there are four observed fundamental interactions (also known as fundamental forces) that form the basis of all known interactions in nature: gravitational, electromagnetic, strong nuclear, and weak nuclear forces. Some speculative theories have proposed a fifth force to explain various anomalous observations that do not ...

  5. Electroweak interaction - Wikipedia

    en.wikipedia.org/wiki/Electroweak_interaction

    t. e. In particle physics, the electroweak interaction or electroweak force is the unified description of two of the four known fundamental interactions of nature: electromagnetism (electromagnetic interaction) and the weak interaction. Although these two forces appear very different at everyday low energies, the theory models them as two ...

  6. Electricity - Wikipedia

    en.wikipedia.org/wiki/Electricity

    e. Electricity is the set of physical phenomena associated with the presence and motion of matter possessing an electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations. Common phenomena are related to electricity, including lightning, static electricity ...

  7. Newton's law of universal gravitation - Wikipedia

    en.wikipedia.org/wiki/Newton's_law_of_universal...

    t. e. Newton's law of universal gravitation says that every particle attracts every other particle in the universe with a force that is proportional to the product of their masses and inversely proportional to the square of the distance between their centers. Separated objects attract and are attracted as if all their mass were concentrated at ...

  8. Constitution of Pakistan - Wikipedia

    en.wikipedia.org/wiki/Constitution_of_Pakistan

    The Constitution of Pakistan (Urdu: آئینِ پاکستان ; ISO: Āīn-ē-Pākistān), also known as the 1973 Constitution, is the supreme law of Pakistan. The document guides Pakistan's law, political culture, and system. It sets out the state's outline, the fundamental rights of the population, the state's law and orders, and also the ...

  9. Muhammad Iqbal's concept of Khudi - Wikipedia

    en.wikipedia.org/wiki/Muhammad_Iqbal's_concept_of...

    Khudi is a universal and multi-degree reality. There is a gradually rising note of egohood in the whole universe which differs in degree among the creatures. We are conscious of this in our own self, in nature before us and in the ultimate principle, of all life, the Ultimate Ego.