THE amplitude of vibrations on the wave surface of a spherical light wave may, or may not, be homogeneous. According to the classical electromagnetic theory of light, for a spherical wave emitted by a ...

On the rise. Signs of convection are seen in the motion of hot gas under the influence of a gravity-like acoustic force in a spherical glass container. The images were recorded 15, 40, and 140 ...

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"We don't need to go into space to do these experiments anymore." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Physicists have replicated the ...

"A full spherical wave is symmetric and has its focus exactly at the center of the sphere. However, to keep this spherical symmetry, light should propagate from all directions onto the sample. And ...

The pressure variations of a sound wave can make a gas bubble in a liquid periodically shrink and grow. At certain temperatures and pressures, the bubble may implode to generate a huge pulse of energy ...

Researchers in Switzerland have found a way of using sound waves to manipulate objects in disordered environments such as liquids. Instead of trapping the objects as conventional optical and acoustic ...

A pair of space zombies show that dead stars are still capable of incredible physics. Researchers found this out when they studied data from one of the most important astronomical events of the last ...

Microscopically small cages can be produced at TU Wien (Vienna). Their grid openings are only a few micrometers in size, making them ideal for holding cells and allowing living tissue to grow in a ...