Force

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Spotlight



New study suggests we might have spotted a fifth force of nature (Fiona MacDonald, Science Alert)
Physicists confirm possible discovery of fifth force of nature (Phys.org)
Has a New, Fifth Force of Nature Been Found? (Mike Wall, Space.com)
A Fifth Force: Fact or Fiction? (Don Lincoln, Senior Scientist, Fermi National Accelerator Laboratory, Live Science)

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Physical Realm
Physical Laws (Constants) Relativity
Matter Molecule, Atom (Periodic Table), Particle
Force Gravity, Electromagnetism (Light, Color)

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force : any of the natural influences (as electromagnetism, gravity, the strong force, and the weak force) that exist especially between particles and determine the structure of the universe — Webster

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Encyclopedia

Forces in the universe are based on four fundamental interactions. The strong and weak forces are nuclear forces that act only at very short distances, and are responsible for the interactions between subatomic particles, including nucleons and compound nuclei. The electromagnetic force acts between electric charges, and the gravitational force acts between masses. All other forces in nature derive from these four fundamental interactions. For example, friction is a manifestation of the electromagnetic force acting between the atoms of two surfaces, and the Pauli exclusion principle, which does not permit atoms to pass through each other. Similarly, the forces in springs, modeled by Hooke’s law, are the result of electromagnetic forces and the Exclusion Principle acting together to return an object to its equilibrium position. Centrifugal forces are acceleration forces that arise simply from the acceleration of rotating frames of reference — Wikipedia

David Darling’s Internet Encyclopedia of Science, Britannica

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Introduction to Forces (Practical Physics)

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The story of force: from Aristotle to Einstein (Arthur Stinner)

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Fundamental Forces of Physics (Sci Show YouTube Playlist)

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Physics News -- ScienceDaily Physics News and Research. Why is the universe more partial to matter than antimatter? How could fuel cells be more efficient? Read current science articles on physics.

  • Scientists design new material to harness power...
    on December 17, 2018 at 8:15 pm

    Scientists have long known that synthetic materials -- called metamaterials -- can manipulate electromagnetic waves such as visible light to make them behave in ways that cannot be found in nature. That has led to breakthroughs such as super-high resolution imaging. Now, scientists are taking the technology of manipulating light in a new direction. […]

  • Pressure tuned magnetism paves the way for novel...
    on December 17, 2018 at 5:00 pm

    Using very sensitive magnetic probes, an international team of researchers has found surprising evidence that magnetism which emerges at the interfaces between non-magnetic oxide thin layers can be easily tuned by exerting tiny mechanical forces. This discovery provides a new and unexpected handle to control magnetism, thus enabling denser magnetic memory, and opens new and unexpected routes for developing novel oxide-based spintronic devices. […]

  • Advancing the description of 'mysterious' water...
    on December 17, 2018 at 5:00 pm

    Interactions with water dominate how drug molecules bind to targets, but it's tricky to model these interactions, limiting the accuracy of drug design. Scientists have now described a novel approach to building a new description of water (known as a force field) and demonstrating its accuracy. […]

  • Hiding images and information in plain sight
    on December 17, 2018 at 3:58 pm

    What is real is not always as it appears. Researchers have found a way to hide information on materials and only make it visible to a person using the right tech. […]

  • New type of low-energy nanolaser that shines in...
    on December 17, 2018 at 3:17 pm

    Researchers have developed a new type of low-energy, nanoscale laser that shines in all directions. The key to its omnidirectional light emission is the introduction of something that is usually highly undesirable in nanotechnology: irregularities in the materials. The researchers foresee a vast range of potential applications, but first they hope their fundamental work will inspire others to further improve it and deepen the understanding. […]


Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.

  • Silicon Valley East: Google plans $1B expansion...
    on December 18, 2018 at 8:15 am

    Silicon Valley is becoming Silicon Nation. […]

  • The full story on climate change requires the...
    on December 17, 2018 at 8:00 pm

    The science is clear that human activities over the last century have contributed to greenhouse-like warming of the Earth's surface. Much of the global conversation around climate change fixates on what individual countries or regions are contributing to the problem, and what they will do (or not do) to reverse the tide. […]

  • NASA research reveals Saturn is losing its rings...
    on December 17, 2018 at 5:40 pm

    New NASA research confirms that Saturn is losing its iconic rings at the maximum rate estimated from Voyager 1 & 2 observations made decades ago. The rings are being pulled into Saturn by gravity as a dusty rain of ice particles under the influence of Saturn's magnetic field. […]

  • Advancing the description of 'mysterious' water...
    on December 17, 2018 at 5:25 pm

    Interactions with water dominate how drug molecules bind to targets, but it's tricky to model these interactions, limiting the accuracy of drug design. In a recent paper in The Journal of Chemical Physics, from AIP Publishing, William A. Goddard III and Saber Naserifar from the California Institute of Technology describe their novel approach to building a new description of water (known as a force field) and demonstrate its accuracy. […]

  • Pressure tuned magnetism paves the way for novel...
    on December 17, 2018 at 5:00 pm

    Advances in the technology of material growth allow fabricating sandwiches of materials with atomic precision. The interface between the two materials can sometimes exhibit physical phenomena which do not exist in both parent materials. For example, a magnetic interface found between two non-magnetic materials. A new discovery, published today in Nature Physics, shows a new way of controlling this emergent magnetism which may be the basis for new types of magnetic electronic devices. […]