APS tip sheet: Listening to bursting bubbles

February 24, 2020

Analyzing sounds from fluids in motion can help scientists gather data from biological and physical events that can be hard to quantify. For example, scientists use the famous Doppler effect to calculate how fast blood is flowing in the body. Now, scientists have measured the acoustics of a bursting soap bubble, a common example of violent event, to decipher the origin of the popping sound. Researchers Bussonnière et al. determined that the forces exerted by the liquid soap film on the air are those that create the "pop" as the bubble bursts. The results indicate how sound signatures from a violent event could be harnessed to measure forces during the event, according to the authors.
Acoustic sensing of forces driving fast capillary flows
Adrien Bussonnière, Arnaud Antkowiak, François Ollivier, Michaël Baudoin, and Régis Wunenburger

American Physical Society

Related Forces Articles from Brightsurf:

Scientists explain the paradox of quantum forces in nanodevices
Researchers proposed a new approach to describe the interaction of metals with electromagnetic fluctuations (i.e., with random bursts of electric and magnetic fields).

Mechanical forces of biofilms could play role in infections
Studying bacterial biofilms, EPFL scientists have discovered that mechanical forces within them are sufficient to deform the soft material they grow on, e.g. biological tissues, suggesting a ''mechanical'' mode of bacterial infection.

Gene expression altered by direction of forces acting on cell
Tissues and cells in the human body are subjected to a constant push and pull - strained by other cells, blood pressure and fluid flow, to name a few.

'Firefly' imaging method zooms in on 'the forces within us'
Scientists have developed a new technique using tools made of luminescent DNA, lit up like fireflies, to visualize the mechanical forces of cells at the molecular level.

How mechanical forces nudge tumors toward malignancy
Researchers studying two forms of skin cancer identified a long-overlooked factor determining why some tumors are more likely to metastasize than others: the physical properties of the tissue in which the cancer originates.

Molecular forces: The surprising stretching behavior of DNA
Experiments with DNA molecules show that their mechanical properties are completely different from what those of macroscopic objects - and this has important consequences for biology and medicine.

Using protons to tune interlayer forces in van-der-Waals materials
A Chinese-Australian collaboration has demonstrated for the first time that interlayer coupling in a van der Waals (vdW) material can be largely modulated by a protonic gate, 'injecting' protons into the device.

The nature of nuclear forces imprinted in photons
IFJ PAN scientists together with colleagues from the University of Milano (Italy) and other countries confirmed the need to include the three-nucleon interactions in the description of electromagnetic transitions in the 20O atomic nucleus.

Under pressure: New bioinspired material can 'shapeshift' to external forces
Inspired by how human bone and colorful coral reefs adjust mineral deposits in response to their surrounding environments, Johns Hopkins researchers have created a self-adapting material that can change its stiffness in response to the applied force.

Mechanical forces shape bacterial biofilms' puzzling patterns
Belying their slimy natures, the sticky patches of bacteria called biofilms often form intricate, starburst-like patterns as they grow.

Read More: Forces News and Forces Current Events
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.