The foamy bubbles that are typically produced when a sponge is immersed in a warm, humid environment are thought to come from a chemical reaction in the sponge.
Now, researchers have discovered that the foamy particles are actually created by the sponge bed itself.
In a study published online today in the journal Science, scientists at the University of California, San Diego, found that the bubbles are created when the bubbles created by a sponge bed are pushed into the surrounding air and then trapped.
“What we found was that the surface area of the bubbles is actually a reflection of the volume of the sponge,” said lead author Dr. Stephanie L. Schmid, a postdoctoral researcher in the department of chemistry and physics at UC San Diego.
“If we look at the surface of a sponge, we’re seeing bubbles.
When we push the sponge up, it pushes bubbles into the air, and that bubbles are what we’re going to see on the surface,” Schmid said.”
The surface of the foam is what’s creating the bubbles.”
Schmid said the bubbles produced by a foamy sponge are typically generated by the surface tension of the foams surface.
The foam also provides a buffer between the sponge and the surrounding water.
“We think that this is how foam bed bubbles get formed,” she said.
The researchers measured the surface pressure of bubbles created on the foam by placing the sponge in a glass jar filled with a solution of water and carbon dioxide.
They then monitored how long bubbles stayed trapped.
The researchers found that when bubbles are trapped, they tend to stay trapped for a few minutes, after which the bubbles begin to relax and release.
“You don’t want bubbles to be trapped too long because that can create a lot of bubbles,” Schmit said.
When bubbles are released, they form a surface that has the same surface tension as the water inside the sponge, but the bubbles also have an extra layer of air to cushion them from the air.
“Because the foam surface is very water-like, the bubbles will stay trapped longer,” Schmied said.
In this case, bubbles are formed at the water surface and then released into the water when bubbles in the foam break off.
“When bubbles break off, they create a layer of water on top of the water,” Schmed said.
“It creates a really unique surface that we can’t see from the surface.”
Bubbles are a great way to monitor the surface because we can see if they are expanding, or if they’re contracting, or they’re being broken up,” she added.
When the researchers measured how long the bubbles remained trapped, Schmid said they found that bubbles tend to remain stable at about 100 percent pressure for about a minute.
The bubbles break up into smaller bubbles, which can then be observed on the screen.
Schmid and her colleagues have been looking at foam beds for more than a decade and are looking for ways to improve the effectiveness of foam beds in making bubbles.”
This study is a great example of how we can use our scientific knowledge and the technology we have to develop foam beds that are more efficient at producing bubbles, but also that we also can use these to improve air quality,” Schmet said.
Schmet is also a member of the Department of Physics and Astronomy at UC Santa Barbara and is currently working on an article that will address the foam bed’s use as a way to protect people from air pollution.
She said the foam beds have potential applications for the prevention of air pollution and the development of air-quality standards.
For more information, contact Schmried at [email protected] or 858-982-7000.