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Resonance in Rainbow Bridge

By Guest PostDecember 28, 2016Scienceaircraft carrier, ben white, jeff moore, man made, model, natural, nimitz class, rainbow bridge, resonance, utah, vibrations

University of Utah study listens to the natural bridge vibrate and sing

Utah’s iconic Rainbow Bridge hums with natural and man-made vibrations, according to a new University of Utah study, published September 21 in Geophysical Research Letters. The study characterizes the different ways the bridge vibrates and what frequencies and energy sources cause the rock structure to resonate. The vibrations are small, according to geology and geophysics professor Jeff Moore, but the study provides a baseline measure of the bridge’s structural integrity and shows how human activities can rattle solid rock. (more…)

Vibrations make large landslides flow like fluid

By Guest PostMay 29, 2016Environment, Scienceacoustic fluidization, geoscientists, large landslides, mesa county, vibrations

New research shows why some large landslides travel greater distances across flat land than scientists would generally expect, sometimes putting towns and populations far from mountainsides at risk.

PROVIDENCE, R.I. and WEST LAFAYETTE, Ind. — A new study may finally explain why some landslides travel much greater distances than scientists would normally expect. A team of researchers used a sophisticated computer model to show that vibrations generated by large slides can cause tons of rock to flow like a fluid, enabling the rocks to rumble across vast distances. (more…)

Do we live in a 2-D hologram?

By Guest PostSeptember 26, 2014Scienceabsolute zero, abt, alwaleed bin talal, cosimo rusconi, darstellung von beschuldigten, energy state, katherine sarikakis, large igneous provinces, laser beam, magnetfeld, magnetkreisel, making of king, matter, media governance, next king, oriol romero isart, prince salman, saad hariri resignation, seth burgess, sills, spacetime, subsurface magma intrusions, university of chicago, vibrations

New Fermilab experiment will test the nature of the universe

A unique experiment at the U.S. Department of Energy’s Fermi National Accelerator Laboratory called the Holometer has started collecting data that will answer some mind-bending questions about our universe—including whether we live in a hologram. (more…)

Vibrations influence the circadian clock of a fruit fly

By Guest PostJanuary 31, 2014Health, Sciencebipolar disorder, circadian clock, daily locomotor activity, depression, diurnal change, drosophila, external world time, fruit fly, insomnia, joerg albert, light, ralf stanewsky, temperature, temperature fluctuation, ucl ear institute, university college london, vibrations

The internal circadian clock of a Drosophila (fruit fly) can be synchronised using vibrations, according to research published today in the journal Science. The study suggests that an animal’s own movements can influence its clock.

The circadian clock, which underlies the daily rhythms characterising most of our bodily functions, including the sleep cycle, is mainly set by diurnal changes in light and temperature. (more…)

Seeing Through Smoke

By Guest PostFebruary 18, 2013Sciencedark, Environment, firefighters, glove prototypes, intuitive, lucy dunne, obstacles, seeing through smoke, sensor gloves, sensor signal, sensory awareness, smoky buildings, smoky rooms, Technology, university of minnesota, vibrations, vibrotactile gloves

Sensor gloves detect obstacles for firefighters in smoky rooms

University of Minnesota researchers have taken a step toward providing first responders with a new means of finding their way through dark or smoky buildings.

Lucy Dunne, an assistant professor in the College of Design’s Department of Design, Housing & Apparel, and graduate student Tony Carton, working with funding from the U’s Minnesota Agricultural Experiment Station to augment the sensory awareness of first responders like firefighters, designed gloves that use ultrasonic sensors to detect walls and other objects. (more…)

Most Powerful Millimeter-Scale Energy Harvester Generates Electricity from Vibrations

By Guest PostMay 4, 2011Scienceconvert, energy harvester cyclic motions, harness energy, high-quality energy-harvesting piezoelectric material, intellectual property, novel silicon micromachining technique, ongoing life-cycle expenses of operating a wireless sensor, pervasive information-gathering sensor networks, sensors, solid-state, ultracapacitor, vibrations

ANN ARBOR, Mich.—Electrical engineers at the University of Michigan have built a device that can harness energy from vibrations and convert it to electricity with five to 10 times greater efficiency and power than other devices in its class. And it’s smaller than a penny.

“In a tiny amount of space, we’ve been able to make a device that generates more power for a given input than anything else out there on the market,” said Khalil Najafi, one of the system’s developers and chair of Electrical and Computer Engineering. (more…)

Under Pressure: Germanium

By Guest PostApril 11, 2011Scienceatomic number, China, condensed matter, condensed matter theory, crystal structures, element, fiber optic systems, flowers, germanium, ho kwang mao, next generation computer architecture, phonons, pressure, series of phase transitions, superconductivity, vibrations, viktor struzhkin, xiao-jia chen

Washington, D.C. — Although its name may make many people think of flowers, the element germanium is part of a frequently studied group of elements, called IVa, which could have applications for next-generation computer architecture as well as implications for fundamental condensed matter physics.

New research conducted by Xiao-Jia Chen, Viktor Struzhkin, and Ho-kwang (Dave) Mao from Geophysical Laboratory at Carnegie Institution for Science, along with collaborators from China, reveals details of the element’s transitions under pressure. Their results show extraordinary agreement with the predictions of modern condensed matter theory. (more…)

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