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)
These are organized by a classification scheme developed exclusively for Cosma. More…
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
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
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.
- Detailed look at intriguing property of chiral...on April 21, 2021 at 8:00 pm
A new study is advancing scientists' understanding of magneto-chiral dichroism. The research focuses on light-matter interactions in chiral materials under a magnetic field.
- Scientists capture image of an electron's orbit...on April 21, 2021 at 7:12 pm
Researchers have captured an image showing the internal orbits, or spatial distribution, of particles in an exciton - a goal that had eluded scientists for almost a century.
- Combining light, superconductors could boost AI...on April 20, 2021 at 5:10 pm
As artificial intelligence has attracted interest, researchers are focused on understanding how the brain accomplishes cognition so they can construct systems with general intelligence comparable to humans' intelligence. Researchers propose an approach to AI that focuses on integrating photonic components with superconducting electronics; using light for communication and complex electronic circuits for computation could enable artificial cognitive systems of scale and functionality beyond what […]
- Boosting fiber optics communications with...on April 20, 2021 at 5:10 pm
Fiber optic technology is the holy grail of high-speed, long-distance telecommunications. Still, with the continuing exponential growth of internet traffic, researchers are warning of a capacity crunch. Researchers show how quantum-enhanced receivers could play a critical role in addressing this challenge. The scientists developed a method to enhance receivers based on quantum physics properties to dramatically increase network performance while significantly reducing the error bit rate and […]
- Forensics puzzle cracked via fluid mechanical...on April 20, 2021 at 4:15 pm
A real-life forensic puzzle inspired researchers to explore the physics involved, and in Physics of Fluids, they present theoretical results revealing an interaction of the incoming vortex ring of propellant muzzle gases with backward blood spatter. A detailed analytical theory of such turbulent self-similar vortex rings was given by this group in earlier work and is linked mathematically to the theory of quantum oscillators.
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- Once again, volcanic Caribbean island looks to...on April 17, 2021 at 9:48 am
A group of nervous fish sellers got very close to La Soufrière, the volcano on the Caribbean island of St. Vincent, on the morning of May 7, 1902.
- New blast at St. Vincent volcano; cruise ship...on April 16, 2021 at 9:10 pm
La Soufriere volcano shot out another explosive burst of gas and ash on Friday as a cruise ship arrived to evacuate some of the foreigners who had been stuck on a St. Vincent island coated in ash from a week of violent eruptions.
- The future of particle accelerators is hereon April 16, 2021 at 8:55 pm
When the Electron Ion Collider received the go-ahead in January 2020, it became the only new major accelerator in the works anywhere in the world.
- Scientists call for climate projections as part...on April 16, 2021 at 4:42 pm
Scientists have called for the use of climate projections in conservation planning, to ensure that areas most at risk from biodiversity loss and climate impacts are protected. Protected areas are often created in areas of low population density and remote locations, rather than because of their biodiversity conservation potential. Conservation planning in tropical forests especially tends to be less rigorous and climate rarely taken into account, they said.
- Scientists report remarkable enhancement of...on April 16, 2021 at 2:45 pm
It is always exciting to find new isotopes with extreme neutron/proton numbers in nuclear physics research. In the region of heavy nuclei, α-decay is one of the pervasive decay modes and plays an essential role in searching for new isotopes. However, even after about a century of studying α-decay, scientists still cannot perfectly describe how the α-particle is formed at the surface of the nucleus before its emission.