News tagged with amplitudes

Scientists discover new water waves

(PhysOrg.com) -- By precisely shaking a container of shallow water, researchers have observed wave behavior that has never been seen before. In a new study, Jean Rajchenbach, Alphonse Leroux, and Didier Clamond ...

Jul 19, 2011 feature
4.4 / 5 (21) 26 | with audio podcast

Tall water waves behave unexpectedly

(PhysOrg.com) -- In investigating the behavior of large-amplitude standing water waves, mathematician Jon Wilkening of the University of California, Berkeley, has discovered that the waves’ behavior cannot ...

Nov 15, 2011 feature
4.8 / 5 (18) 2 | with audio podcast

Scientists first to observe plasmons on graphene

With a beam of infrared light, scientists have sent ripples of electrons along the surface of graphene and demonstrated that they can control the length and height of these oscillations, called plasmons, using ...

Jun 20, 2012
5 / 5 (9) 5 | with audio podcast

Sound bullets in water

Sound waves are commonly used in applications ranging from ultrasound imaging to hyperthermia therapy, in which high temperatures are induced, for example, in tumors to destroy them. In 2010, researchers at Caltech led by ...

Nov 19, 2012
5 / 5 (9) 0 | with audio podcast

Seismic noise unearths lost hurricanes

Seismologists have found a new way to piece together the history of hurricanes in the North Atlantic—by looking back through records of the planet's seismic noise. It's an entirely new way to tap into the ...

Oct 20, 2009
4.7 / 5 (7) 1

The pink noise of water quality

Lakes and streams are an essential supply of freshwater. Monitoring their water quality relies on measuring their chemistry. Researchers from ETH Zürich and the British research institute CEH have discovered ...

Aug 12, 2013
4.7 / 5 (7) 0 | with audio podcast

Do dolphins use nonlinear mathematics?

Research from the University of Southampton, which examines how dolphins might process their sonar signals, could provide a new system for man-made sonar to detect targets, such as sea mines, in bubbly water.

Jul 18, 2012
4.8 / 5 (6) 6 | with audio podcast

What makes music sound so sweet (or not)

Ever since ancient times, scholars have puzzled over the reasons that some musical note combinations sound so sweet while others are just downright dreadful. The Greeks believed that simple ratios in the string lengths of ...

May 20, 2010
3.5 / 5 (8) 0 | with audio podcast

Squeezed light from single atoms

(PhysOrg.com) -- Max Planck Institute of Quantum Optics scientists generate amplitude-squeezed light fields using single atoms trapped inside optical cavities.

Jun 30, 2011
4.6 / 5 (5) 0 | with audio podcast