These are organized by a classification scheme developed exclusively for Cosma. More…
soap bubble : a hollow iridescent globe formed by blowing a film of soapsuds (as from a pipe) — Webster
Soap bubble is an extremely thin film of soapy water enclosing air that forms a hollow sphere with an iridescent surface. Soap bubbles usually last for only a few seconds before bursting, either on their own or on contact with another object. They are often used for children’s enjoyment, but they are also used in artistic performances. Assembling several bubbles results in foam. When light shines onto a bubble it appears to change color. Unlike those seen in a rainbow, which arise from differential refraction, the colors seen in a soap bubble arise from interference of light reflecting off the front and back surfaces of the thin soap film. Depending on the thickness of the film, different colors interfere constructively and destructively. — Wikipedia
Physicists determine the optimal soap recipe for blowing gigantic bubbles (Jennifer Ouellette)
Physics of Giant Soap Bubbles (Emory University)
How to make a giant bubble (Stephen Frazier, Xinyi Jiang, and Justin C. Burton, Physical Review Fluids)
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- Mechanical buckling of petals produces iridescent...on September 14, 2021 at 3:00 pm
Flowers are employing a materials science phenomenon typically associated with failures in structural engineering to produce exquisite three-dimensional petal patterns to lure pollinators.
- Tiny bubbles: Treating asthma with gene-silencing...on August 11, 2021 at 1:35 pm
Steroid-based inhalers deliver life-saving medication for millions of asthma sufferers, providing relief and the ability to simply breathe. Unfortunately, inhalers do not work for all patients, and with rates on the rise for a disease that leads to hundreds of thousands of deaths world-wide each year, new asthma treatments and strategies are needed.
- Foam 'fizzics'on June 17, 2021 at 5:07 pm
Chemical engineers at the University of Illinois Chicago and UCLA have answered longstanding questions about the underlying processes that determine the life cycle of liquid foams. The breakthrough could help improve the commercial production and application of foams in a broad range of industries.
- Researchers show how 'theory of mind' influences...on April 22, 2021 at 5:03 pm
Product marketers should be clear in their messaging to avoid customer skepticism that makes them feel duped, according to University of Oregon research.
- Active liquid crystal systems examined in search...on April 19, 2021 at 2:40 pm
Liquid Crystals (LC) are widely deployed in display technology and optical fibers. From smartphones in your pockets to large screen TVs, LCs are everywhere, as this special state of matter has been found in colorful soap bubbles as well as certain living tissues.
- Dry ice, the unsung hero of the COVID-19 vaccine...on March 22, 2021 at 8:27 pm
Robert Levis dumped chunks of a whitish substance into a beaker of water, and immediately the liquid began frothing and churning like a sorcerer's potion, spewing plumes of fog across the table of his office at Temple University.
- Why slow-pouring coffee makes a tower of liquid...on March 8, 2021 at 1:38 pm
When a droplet of coffee hits the liquid surface in the cup, a characteristic tower of coffee forms for a very short time, sometimes even with a new droplet on top. In a paper that appeared in Physical Review Fluids today, a team of researchers from Amsterdam, Delft and Paris shed new light on this intricate effect.
- New storage medium uses physical properties of...on February 22, 2021 at 1:50 pm
Using nanoscale quantum sensors, an international research team has succeeded in exploring certain previously uncharted physical properties of an antiferromagnetic material. Based on their results, the researchers developed a concept for a new storage medium published in the journal Nature Physics. The project was coordinated by researchers from the Department of Physics and the Swiss Nanoscience Institute at the University of Basel.
- Shuffling bubbles reveal how liquid foams evolveon February 8, 2021 at 5:33 pm
Foams are found everywhere, in soaps and detergents, meringues, beer foam, cosmetics and insulation for clothing and building. The application of foams tends to take advantage of their unique structure, which is why understanding how their structure can change over time is so important.
- Chemists synthesize 'flat' silicon compoundson December 22, 2020 at 7:37 pm
Chemists at the University of Bonn (Germany) have synthesized extremely unusual compounds. Their central building block is a silicon atom. Different from usual, however, is the arrangement of the four bonding partners of the atom, which are not in the form of a tetrahedron around it, but flat like a trapezoid. This arrangement is usually energetically extremely unfavorable, yet the molecules are very stable. Their properties are completely unknown so far; researchers now want to explore them. […]