Force

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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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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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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.

  • Towards an 'orrery' for quantum gauge theory
    on August 19, 2019 at 8:43 pm

    Physicists have developed a new approach to couple quantized gauge fields to ultracold matter. The method might be the basis for a versatile platform to tackle problems ranging from condensed-matter to high-energy physics.

  • Spinning lightwaves on a one-way street
    on August 19, 2019 at 3:27 pm

    Researchers have created a quantum spin wave for light. This can be a carrier of information for future nanotechnologies but with a unique twist: they only flow in one direction.

  • Heat shield just 10 atoms thick to protect...
    on August 19, 2019 at 3:27 pm

    Atomically thin materials could create heat-shields for cell phones or laptops that would protect people and temperature-sensitive components and make future electronic gadgets even more compact.

  • Circulation of water in deep Earth's interior
    on August 19, 2019 at 3:00 pm

    The existence of water in deep Earth is considered to play an important role in geodynamics, because water drastically changes the physical properties of mantle rock, such as melting temperature, electric conductivity, and rheological properties. Water is transported into deep Earth by the hydrous minerals in the subducting cold plates. Hydrous minerals, such as serpentine, mica and clay minerals, contain water in the form of hydroxyl (-OH) in the crystal structure. Most of the hydrous minerals […]

  • Lab-based dark energy experiment narrows search...
    on August 19, 2019 at 3:00 pm

    An experiment to test a popular theory of dark energy has found no evidence of new forces, placing strong constraints on related theories.


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.

  • Heatwaves longer, more deadly even in a 2C world
    on August 19, 2019 at 5:16 pm

    Northern hemisphere summers will deliver dangerously longer heatwaves, droughts and bouts of rain even if humanity manages to cap global warming at two degrees Celsius, scientists said Monday.

  • Researchers discover compound that speeds sexual...
    on August 19, 2019 at 5:14 pm

    Every day, people are exposed to myriad chemicals, both natural and synthetic. Some of these compounds may affect human physical development, but testing them directly on people would be grossly unethical.

  • Dog down: Effort helps emergency medical staff...
    on August 19, 2019 at 5:00 pm

    Recognizing a gap in care for law enforcement K-9s injured on the job, a team of veterinarians, emergency medical services experts and canine handlers has developed protocols for emergency medical service personnel who may be called upon to help treat and transport the injured dogs.

  • Study investigates rural LBGTQ youth's...
    on August 19, 2019 at 4:57 pm

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  • Research using mechanics and physics could...
    on August 19, 2019 at 4:51 pm

    Researchers at the NYU Tandon School of Engineering have discovered a new way to identify the state of individual cells by bringing principles of mechanical engineering and physics to bear on processes that are now well understood at the macro level, but not yet at the cellular level: how stressors such as injury and disease force an organism into a new level of equilibrium—a biological process of finding a "new normal" called allostasis. The researchers' findings carry major implications […]