We’ve seen vortex cannons before, where you usually fix a ... and it sends out a swirling donut of high-pressure air that travels surprisingly far. It’s like smoke rings, but amped up a ...

"Here, we report that microwave toroidal pulses can be launched by a transient finite-aperture broadband horn antenna emitter, as an electromagnetic counterpart of 'air vortex cannon'," an ...

Construct a DIY smoke ring shooter for air vortex fun. Pope Francis has died at the age of 88, the Vatican says World Economic Forum’s Schwab Steps Down After Over 50 Years China threatens ...

Using an air vortex cannon strapped to a bass reflex port to wiggle a flame to death. (Credit: The Action Lab) Using a fairly beefy speaker to blast a 70 Hz tone at a big alcohol flame was not ...