Bursting Soap Bubble

Dynamics of soap bubble bursting and its implications to volcano acoustics

In order to assess the physical mechanisms at stake when giant gas bubbles burst at the top of a magma conduit, laboratory experiments have been performed. An overpressurized gas cavity is initially closed by a thin liquid film, which suddenly bursts. The acoustic signal produced by the bursting is investigated. The key result is that the amplitude and energy of the acoustic signal strongly dep...

Bubble Clouds: 3D Display Composed of Soap Bubble Cluster

We examine Bubble Clouds composed of a bubble cluster for a three-dimensional display. A bubble cluster is flexible in that its shape can be modified and it can float in the air with helium gas confinement of the bubbles. By varying the density of the bubble clusters, we project images onto the bubbles without requiring fog confinement or use of special equipment. Moreover, we investigate wheth...

Planar soap bubble clusters with multiple cavities

The floppiness of bubble chains and the rigidity with respect to slidings of three-bubble clusters are used to construct numerically degenerate local energy-minimizing bubble clusters in the plane with as many cavities as desired. Experimental demonstrations are also given. © 2009 Elsevier Ltd. All rights reserved. 1. Formulation of the problem and experimental demonstration The purpose of this...

The Bursting of the Pedigree Bubble

Centaurus A : multiple outbursts or bursting bubble ?

We present new radio observations of the brighter region of the northern lobe (the Northern Middle Lobe, NML) of Centaurus A obtained at 20 cm with the Australia Telescope Compact Array. The angular resolutions are ∼50 and ∼130 arcsec, therefore much higher than for the previously available radio images of this region. The most interesting feature detected in our images is a large-scale jet tha...