News tagged with equation

Strange physics turns off laser

Inspired by anomalies that arise in certain mathematical equations, researchers have demonstrated a laser system that paradoxically turns off when more power is added rather than becoming continuously brighter.

dateJun 17, 2014 in Optics & Photonics
shares0 comments 5

SDO mission untangles motion inside the Sun

(Phys.org) —Using an instrument on NASA's Solar Dynamics Observatory, called the Helioseismic and Magnetic Imager, or HMI, scientists have overturned previous notions of how the sun's writhing insides move from equator ...

dateAug 28, 2013 in Space Exploration
shares0 comments 2

Description of rotating molecules made easy

Feynman diagrams are applied in condensed matter physics. By turning highly complex equations into sets of simple diagrams, the method has established itself as one of the sharpest tools in a theoretical physicist's toolbox. ...

dateDec 28, 2018 in Condensed Matter
shares475 comments 0

What really happens at femtosecond junctions?

When beams of ultra-short laser pulses running in the same direction intersect with each other at a noticeable angle, various interactions occur between the pulses. These physical phenomena are complicated, and their mathematical ...

dateDec 27, 2018 in Optics & Photonics
shares325 comments 1

Mathematicians ask: What's in a ripple?

When a fluid or a gas experiences a sudden disturbance, such as a change in pressure or elevation, it often gives rise to a phenomenon known as an undular bore, which consists of a series of rapid oscillations that propagate ...

dateSep 20, 2017 in Mathematics
shares64 comments 0