News tagged with viscosity
The dance of hot nanoparticles
(PhysOrg.com) -- "Brownian motion is a very old concept," Klaus Kroy tells PhysOrg.com. "The laws explaining it were formulated more than a century ago by Albert Einstein. However, we are finding some intere ...
Sep 08, 2010 |
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Images capture split personality of dense suspensions
Stir lots of small particles into water, and the resulting thick mixture appears highly viscous. When this dense suspension slips through a nozzle and forms a droplet, however, its behavior momentarily reveals ...
Mar 30, 2012 |
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Researchers create rollerball-pen ink to draw circuits
(PhysOrg.com) -- Two professors from the University of Illinois; one specializing in materials science, the other in electrical engineering, have combined their talents to take the idea of printing circuits ...
Nanotechnology / Nanomaterials
Jun 28, 2011 |
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Physicists hit on mathematical description of superfluid dynamics
(PhysOrg.com) -- It has been 100 years since the discovery of superconductivity, a state achieved when mercury was cooled, with the help of liquid helium, to nearly the coldest temperature achievable to form ...
Jun 09, 2011 |
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Water in Earth's mantle may be associated with subduction
A team of scientists from Oregon State University has created the first global three-dimensional map of electrical conductivity in the Earth's mantle and their model suggests that that enhanced conductivity ...
Space & Earth / Earth Sciences
Aug 19, 2009 |
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Study Finds that Styrofoam Increases Biodiesel Power Output
(PhysOrg.com) -- By dissolving polystyrene packing peanuts in biodiesel, scientists have found that they can boost the power output of the fuel while getting rid of garbage at the same time.
Technology / Energy & Green Tech
May 04, 2009 |
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A sticky business -- how cancer cells become more 'gloopy' as they die
The viscosity, or 'gloopiness', of different parts of cancer cells increases dramatically when they are blasted with light-activated cancer drugs, according to new images that provide fundamental insights into how cancer ...
Mar 15, 2009 |
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Mechanical properties of stem cells can foretell what they will become
To become better healers, tissue engineering need a timely and reliable way to obtain enough raw materials: cells that either already are or can become the tissue they need to build. In a new study, Brown ...
May 21, 2012 |
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Pesticide additives cause drifting droplets, but can be controlled
(PhysOrg.com) -- Chemical additives that help agricultural pesticides adhere to their targets during spraying can lead to formation of smaller "satellite" droplets that cause those pesticides to drift into ...
Mar 20, 2012 |
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The perfect liquid -- now even more perfect
Ultra hot quark-gluon-plasma, generated by heavy-ion collisions in particle accelerators, is supposed to be the "most perfect fluid" in the world. Previous theories imposed a limit on how "liquid" fluids can ...
Jan 17, 2012 |
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Bees, and similar nectar feeders, get sweeter juice with dipping tongues
A field of flowers may seem innocuous -- but for the birds and bees that depend on it for sustenance, that floral landscape can be a battlefield mined with predators and competitors. The more efficient a pollinator is in ...
Oct 12, 2011 |
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Physicists capture microscopic origins of thinning and thickening fluids
(PhysOrg.com) -- In things thick and thin: Cornell physicists explain how fluids – such as paint or paste - behave by observing how micron-sized suspended particles dance in real time. Using high-speed ...
Sep 01, 2011 |
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Using magnets to help prevent heart attacks
If a person's blood becomes too thick it can damage blood vessels and increase the risk of heart attacks. But a Temple University physicist has discovered that he can thin the human blood by subjecting it to a magnetic field.
Jun 07, 2011 |
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Long-standing question about swimming in elastic liquids, answered
A biomechanical experiment conducted at the University of Pennsylvania School of Engineering and Applied Science has answered a long-standing theoretical question: Will microorganisms swim faster or slower in elastic fluids? ...
May 18, 2011 |
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Mixing fluids efficiently in confined spaces: Let the fingers do the working
Getting two fluids to mix in small or confined spaces is a big problem in many industries where, for instance, the introduction of one fluid can help extract another — like water pumped underground can release oil trapped ...
May 12, 2011 |
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