Hill, together with Rachel Howe, who is also at the NSO, employed two primary instruments in a relatively new science called helioseismology that traces sound waves to reveal conditions in the Sun's interior.    From Wordnik.com.  [Latest Articles] Reference

Rachel Howe and Frank Hill of the National Solar Observatory (NSO) in Tucson, Arizona, used a technique called helioseismology to detect and track the jet stream down to depths of 7,000 km below the surface of the sun.    From Wordnik.com.  [SPACE.com] Reference

Solar rhythm: The sun rings like a bell, and that has inspired the new science of helioseismology.    From Wordnik.com.  [Mysteries Of The Sun] Reference

The advent of helioseismology has made it possible to probe the solar interior and watch these flows evolve as the cycle progresses.    From Wordnik.com.  [October 24th, 2009] Reference

The resulting 100-plus hours of continuous solar observations set a new standard for helioseismology -- the study of "sunquakes" and the sun's internal structure.    From Wordnik.com.  [Astrophysicist Turned Antarctica] Reference

In particular, he pioneered solar observations using helioseismology, becoming the first scientist to set up a telescope and observe the sun for 120 continuous hours from a single point on Earth.    From Wordnik.com.  [Martin A. Pomerantz (12/17/1916 - 10/25/2008)] Reference

There is a new article on helioseismology this week in Science Daily.    From Wordnik.com.  [eHam.net News] Reference

A bright young sun consistent with helioseismology and warm temperatures on ancient earth and mars.    From Wordnik.com. Reference

Even solar physicists use the method of helioseismology to understand the interior of our Sun by observing its wobble.    From Wordnik.com.  [Universe Today] Reference

The instrument monitors magnetic flux and takes helioseismology readings, tracking the propagation of sound waves across the sun's surface.    From Wordnik.com.  [The Money Times] Reference

The instrument monitors magnetic flux and takes helioseismology readings, tracking the propagation of sound waves across the surface of the sun.    From Wordnik.com.  [Scientific American] Reference

The torrent will include dozens of ultrahigh-resolution images each minute and helioseismology readings that track the propagation of acoustic waves across the sun's surface.    From Wordnik.com.  [Scientific American] Reference

A recent study led by National Oceanic and Atmospheric Administration research scientist Alysha Reinard showed how helioseismology can be used to track swirling plasma flows in the sun and predict solar flares with unprecedented accuracy.    From Wordnik.com.  [Scientific American] Reference

The new science of helioseismology, enabled by instruments such as the ground - based GONG, the Michelson Doppler Imager aboard the SOHO spacecraft, and NASA's planned Solar Dynamics Observatory, has revolutionized understanding of the solar interior.    From Wordnik.com.  [Space News From SpaceDaily.Com] Reference

It will measure the motion of the solar photosphere (the Sun's visible surface) to study solar oscillations (the photosphere rises and falls with about a 5-minute period) and better understand what's going on in the Sun's interior, a technique known as helioseismology.    From Wordnik.com.  [Gearlog] Reference

2000 Ed's wife, Kris Sherwood, discovered additional evidence, supported by recent and remarkable discoveries in the Solar physics of helioseismology, affirming Ed Sherwood's original observations that the Sun and 'Sound' play a major role in the physics of non-manmade.    From Wordnik.com.  [WN.com - Articles related to Natural and organic living is important for your pets, too] Reference

As an example he offers helioseismology: "By monitoring the sun's vibrating surface, helioseismologists can probe the stellar interior in much the same way geologists use earthquakes to probe inside Earth.    From Wordnik.com.  [Radiopassioni] Reference