Tag

Electric Field

All articles tagged with #electric field

science1 year ago

Mysterious Blue Light Emerges from Chinese Avalanche

A rare natural phenomenon was captured on Mount Xiannairi in Sichuan, China, where an avalanche emitted a mysterious blue light. Astrophotographer Shengyu Li recorded the event, sparking scientific interest and theories about its cause. Possible explanations include triboluminescence, where ice friction emits light, or electric field effects causing charge separation and discharge in the ice. This unprecedented observation offers new insights into the physical properties of ice and avalanche dynamics.

science-and-technology2 years ago

"Tiny Ionic Thruster Masterfully Extinguishes Candles"

A video by [Integza] demonstrates how to create an ionic thruster using a DC high-voltage transformer, a nickel strip, and a smooth ring. The device generates an ionic wind by ionizing nearby air molecules, resulting in a wind-like force with no moving parts. The thruster is capable of blowing out candles and can be used to propel a model boat. 3D models of the parts are available online for those interested in replicating the experiment.

science-and-technology2 years ago

Cracking the Code of Lightning-Produced X-rays with Mathematical Modeling.

A Penn State-led team has developed a mathematical model to explain how lightning produces X-rays. The team discovered a new physical mechanism that explains naturally occurring X-rays associated with lightning activity in the Earth's atmosphere. The model established a threshold for the electric field, which confirmed the feedback mechanism that amplifies the electron avalanches when X-rays emitted by the electrons travel backward and generate new electrons. The researchers said their work may eventually help to design new X-ray sources.