(PhysOrg.com) -- There are many microorganisms out there, navigating through complex biological fluids. “One of the most common migrations takes place with spermatozoa as it navigates the female reproductive tract,” Joseph ...
(Phys.org) —A trio of researches with Université Paris Diderot has found that viscoelastic fluids spontaneously form wings which in turn cause the formation of geometric shapes when the fluid is shot out of a jet at high ...
Whether you are familiar with the term "Magnus effect" or not, you have certainly seen it in action. It is when a spinning ball—for instance in football, cricket or baseball—bends away from its expected trajectory, often ...
General Physics
Sep 26, 2023
0
139
Swimming in a pool of syrup would be difficult for most people, but for bacteria like E. coli, it's easier than swimming in water. Scientists have known for decades that these cells move faster and farther in viscoelastic ...
Soft Matter
Nov 25, 2015
0
681
If you've ever splattered paint on a canvas or sprayed a cookie sheet with oil, you likely created—aside from a minor mess—a shower of droplets, ranging from dime-sized splotches to pencil-point specks.
Condensed Matter
Nov 10, 2016
1
179
Specialized stringy fluids flow through the human joints and help constitute substances such as mucus. These fluids contain long, flexible molecules like polymers or proteins, giving them the ability to stretch and absorb ...
Nanophysics
Jan 30, 2020
0
38
(Phys.org) —A high-angle helix helps microorganisms like sperm and bacteria swim through mucus and other viscoelastic fluids, according to a new study by researchers from Brown University and the University of Wisconsin. ...
General Physics
Aug 13, 2013
0
0
Fluids such as water are Newtonian, and their viscous behavior is well understood. However, many common fluids are "viscoelastic." These fluids, such as those commonly found in cosmetics, soaps and paints, possess a combination ...
Soft Matter
Nov 22, 2016
0
5
Scale plays a major role in locomotion. Swimming microorganisms, such as bacteria and spermatozoa, are subjected to relatively small inertial forces compared to the viscous forces exerted by the surrounding fluid. Such low-level ...
General Physics
Jul 29, 2014
0
3
Why do large gas bubbles in viscoelastic liquids (such as polymer and protein solutions) rise so much faster than expected? An open question with great relevance for industrial production processes. Researchers at TU Graz ...
Soft Matter
Mar 3, 2022
1
43
