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.
New 'whirling' state of matter discovered in an...
on May 28, 2020 at 8:10 pm
The strongest permanent magnets today contain a mix of the elements neodymium and iron. However, neodymium on its own does not behave like any known magnet, confounding researchers for more than half a century. Physicists have now shown that neodymium behaves like a so-called 'self-induced spin glass,' meaning that it is composed of a rippled sea of many tiny whirling magnets circulating at different speeds and constantly evolving over time.
A potential explanation for urban smog
on May 27, 2020 at 7:02 pm
The effect of nitric acid on aerosol particles in the atmosphere may offer an explanation for the smog seen engulfing cities on frosty days.
A bio-inspired addition to concrete stops the...
on May 27, 2020 at 5:31 pm
Concrete is one of the most durable building materials used in modern-day infrastructures, but it has a weakness -- ice -- which can cause it to crumble. Now, inspired by organisms that survive in sub-zero environments, researchers are introducing polymer molecules with anti-freezing abilities into concrete.
Physicists measure a short-lived radioactive...
on May 27, 2020 at 5:31 pm
Researchers have combined the power of a super collider with techniques of laser spectroscopy to precisely measure a short-lived radioactive molecule, radium monofluoride, for the first time.
Scientists announce a 'nuclear' periodic table
on May 27, 2020 at 2:50 pm
Physicists develop a 'nuclear periodic table'. While the traditional table is based on the behavior of electrons in an atom, this new table is based on the protons in the nucleus. Protons have different stable magic numbers, and the table highlights alternative ways to illustrate the laws of nature.
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.
Particles trapped in twisted materials and...
on June 1, 2020 at 11:09 am
A paper by the Quantum Photonics Lab at Heriot-Watt, published today in top-tier Nature Materials, identifies how to trap interlayer excitons (IXs) and their quantum fingerprints. The IXs are trapped by the interaction of two sheets of atoms made of different transition metal dichalcogenides (TMDs), which are stacked together with a small twist to form a moiré pattern.
Moscow bemused at US space 'hysteria' as Musk...
on May 31, 2020 at 6:18 pm
Moscow space officials on Sunday said they were puzzled by "hysteria" around the successful SpaceX flight as Elon Musk taunted Russia and US President Donald Trump vowed to beat it to Mars.
Dragon-riding astronauts join exclusive inner...
on May 30, 2020 at 8:45 pm
Astronauts Doug Hurley and Bob Behnken join NASA's exclusive inner circle by catching a ride on a SpaceX rocket and capsule.
'Back in the game': SpaceX ship blasts off with 2...
on May 30, 2020 at 7:28 pm
A rocket ship built by Elon Musk's SpaceX company thundered away from Earth with two Americans on Saturday, ushering in a new era in commercial space travel and putting the United States back in the business of launching astronauts into orbit from home soil for the first time in nearly a decade.
SpaceX begins final countdown for Saturday launch
on May 30, 2020 at 7:21 pm
SpaceX began fueling its Falcon 9 rocket on Saturday as it prepared to send two veteran NASA astronauts to the International Space Station in a historic first crewed mission by a commercial company.