News tagged with surface tension
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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Scientists revise the 60-year-old definition of surface tension on solids
Researchers of VTT Technical Research Centre of Finland have shown that surface tension on a solid material is unconnected to the energy required to create a new surface. Consequently, surface tension on a solid does not ...
Feb 27, 2012 |
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World's first magnetic soap produced
Scientists from the University of Bristol have developed a soap, composed of iron rich salts dissolved in water, that responds to a magnetic field when placed in solution. The soap's magnetic properties were ...
Jan 23, 2012 |
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Research teams develop rolling microcapsules to repair micro-sized defects in surfaces
(PhysOrg.com) -- Imagine if instead of relying on special x-ray or electrical current testing technology to find really tiny cracks in the skin that covers an airplane, microcapsules filled with easily detected ...
Nanotechnology / Nanomaterials
Jan 10, 2012 |
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A new twist on surface tension
(PhysOrg.com) -- On a mission to manipulate microscale structures of materials, researchers engineer new methods of controlling surface tension.
Jan 10, 2012 |
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Trapping butterfly wings' qualities
Butterflies have inspired humans since the time of ancient Egypt, but now they're also inspiring researchers to look toward nature to help create the next generation of waterproof materials for electronics ...
Jan 04, 2012 |
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Neutrons answer shampoo formulation puzzle
(PhysOrg.com) -- Scientists at the Institut Laue-Langevin have used neutrons to solve a long-standing mystery about the surface properties of polyelectrolyte/surfactant mixtures, such as those used in many ...
Chemistry / Analytical Chemistry
Dec 12, 2011 |
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'Watermark ink' device identifies unknown liquids instantly
Materials scientists and applied physicists collaborating at Harvard's School of Engineering and Applied Sciences (SEAS) have invented a new device that can instantly identify an unknown liquid.
Aug 04, 2011 |
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Researchers tap yeasts as source of 'green' surfactants
Surfactants, which are wetting agents that lower a liquid's surface tension, have a long list of uses, from detergents and cosmetics to paints and pesticides. Most surfactants are petroleum-based. But in Peoria, Ill., a team ...
Jul 28, 2011 |
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Microcantilevers are masters of measurement
(PhysOrg.com) -- Devices that look like tiny diving boards are a launching platform for research that could improve detergents and advance understanding of disease.
Chemistry / Analytical Chemistry
Jun 01, 2011 |
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Student experiment microgravity kit wins NASA-Make tech contest
"Bring It Back," a small and inexpensive microgravity spaceflight kit, has won the do-it-yourself technology and education space competition sponsored by NASA and MAKE Magazine.
Space & Earth / Space Exploration
May 23, 2011 |
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Venom tears: Snake bites can turn out to be groovy
Many people worry about the manner of their death. Death by car accident, death by cancer and death by gunshot are some of the more dreaded ways to go. No less awful is the prospect of death by snakebite. ...
May 13, 2011 |
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Fire ants assemble as a 'super-organism' (w/ video)
The ants may go marching one by one, but they end up forming a superstructure of thousands -- and together they can form a raft that stretches the boundaries of the laws of physics, according to new research ...
Apr 25, 2011 |
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The Marangoni effect: A fluid phenom (w/ Video)
(PhysOrg.com) -- What do a wine glass on Earth and an International Space Station experiment have in common? Well, observing the wine glass would be one of few ways to see and understand the experiment being ...
Mar 11, 2011 |
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The physics of coffee rings
For centuries, intellectuals have met at the ring-stained surfaces of coffee shops to pore over the most pressing problems of the day -- but has anyone ever pondered the coffee rings they left behind? What causes the formation ...
Nov 24, 2010 |
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