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Latest Viscosity Stories

2011-06-16 08:25:00

LOS ANGELES, June 16, 2011 /PRNewswire/ -- CTi (OTCBB: CVAT, Frankfurt, Berlin & Stuttgart:WTC). Cavitation Technologies, Inc. (the "Company") is pleased to announce Todd J. Zelek as the new Chairman and Chief Executive Officer. Mr. Zelek is replacing Roman Gordon, who will become the Company's Chief Technology Officer. Mr. Zelek is a private investor and has over 20 years of experience as an investment banker, most recently as Managing Director and Group Head at Lehman Brothers where...

2011-06-09 23:39:10

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 a superfluid that provides no resistance to electrons as they flow through it. During that century, scientists have struggled to find a precise mathematical explanation of why and how this strange fluid behaves as it does. Liquid helium-4 itself becomes a superfluid when cooled to within a few degrees of...

2011-06-08 01:16:50

Magnetic field can reduce blood viscosity 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. Rongjia Tao, professor and chair of physics at Temple University, has pioneered the use of electric or magnetic fields to decrease the viscosity of oil in engines and pipelines. Now, he is using the same magnetic fields to thin...

2011-05-18 15:30:00

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? For a prevalent type of swimming, undulation, the answer is "slower." Paulo Arratia, assistant professor of mechanical engineering and applied mechanics, along with student Xiaoning Shen, conducted the experiment. Their findings were published in the journal Physical...

2011-04-27 13:25:32

Manufacturers who design new materials often struggle to understand viscous liquids at a molecular scale. Many substances including polymers and biological materials change upon cooling from a watery state at elevated temperatures to a tar-like consistency at intermediate temperatures, then become a solid "glass" similar to hard candy at lower temperatures. Scientists have long sought a molecular-level description of this theoretically mysterious, yet common, "glass transition" process as an...

2011-03-11 15:51:29

The droning of a car driving along the highway can be nerve-racking. Often, a driver cannot understand the passengers in the rear seat, not to mention the pianissimo on the car stereo. Actually, though, there are ways to drive this disruptive vibration out of the car. This is possible thanks to "smart materials" "“ intelligent materials that can tailor their own condition to changing situations with highest speed. The possible applications are diverse and promising "“ not just for...

2011-02-25 15:34:00

METUCHEN, N.J., Feb. 25, 2011 /PRNewswire/ -- The Petroleum Quality Institute of America issued Consumer Alerts on two passenger car engine oils today that are currently on the market. The oils are Liberty Gold Plus SMO 5W-30 Motor Oil and Bullseye Automotive Products High Mileage 10W-30 Motor Oil (SC/CC). According to PQIA, these products can cause harm to an automobile engine and void warranties. These two brands of passenger car engine oil were purchased by the Petroleum Quality...

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2010-12-10 06:30:00

Using lasers to contain some ultra-chilled atoms, a team of scientists has measured the viscosity or stickiness of a gas often considered to be the sixth state of matter. The measurements verify that this gas can be used as a "scale model" of exotic matter, such as super-high temperature superconductors, the nuclear matter of neutron stars, and even the state of matter created microseconds after the Big Bang. The results may also allow experimental tests of string theory in the future. Duke...

2010-12-03 15:58:28

Hit it hard and it will fracture like a solid"¦ but tilt it slowly and it will flow like a fluid. This is the intriguing property of a type of "Ëœcomplex fluid' which has revealed "Ëœnew physics' in research by scientists at The University of Nottingham. The new findings will be highly useful to the manufacturing industry because the processing and dispensing of everyday products like toothpaste, cosmetics, pharmaceuticals and foodstuffs depends on an understanding...

2010-11-30 15:15:47

Glass is something we all know about. It's what we sip our drinks from, what we look out of to see what the weather is like before going outside and it is the backbone to our high speed communications infrastructure (optical fibers). But what most people don't know is that "glass transitions," where changes in structure of a substance accompanying temperature change get "frozen in," can show up during cooling of most any material, liquids through metals. This produces "glassy states," of that...


Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.