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.
Terahertz technology creates new insight into how...
on August 13, 2018 at 4:52 pm
Pioneering engineers working with terahertz frequency technology have been researching how individual frequencies are selected when a laser is turned on, and how quickly the selection is made. […]
Toward a universal quantum computer
on August 13, 2018 at 12:27 pm
Researchers have demonstrated holonomic quantum gates under zero-magnetic field at room temperature, which will enable the realization of fast and fault-tolerant universal quantum computers. […]
Breaking down the Wiedemann-Franz law
on August 10, 2018 at 11:51 pm
A study exploring the coupling between heat and particle currents in a gas of strongly interacting atoms highlights the fundamental role of quantum correlations in transport phenomena, breaks the revered Wiedemann-Franz law, and should open up an experimental route to testing novel ideas for thermoelectric devices. […]
First particle accelerator beam measurement in...
on August 10, 2018 at 5:26 pm
The first full characterization measurement of an accelerator beam in six dimensions will advance the understanding and performance of current and planned accelerators around the world. […]
For UW physicists, the 2-D form of tungsten...
on August 9, 2018 at 9:50 pm
Researchers report that the 2-D form of tungsten ditelluride can undergo 'ferroelectric switching.' Materials with ferroelectric properties can have applications in memory storage, capacitors, RFID card technologies and even medical sensors -- and tungsten ditelluride is the first exfoliated 2-D material known to undergo ferroelectric switching. […]