Posts Tagged ‘vibration’
Details of Earth’s core ‘ironed’ out
CALTECH (US) — Researchers have zeroed in on the behavior of iron—a key component of the Earth’s core—by conducting high-pressure experiments to simulate conditions at the planet’s interior. Continue…
Tuesday, December 27, 2011 11:28 - 0 Comments
Top Stories - Nov 10, 2011 10:54 - 0 Comments
Apply heat. Watch materials shrink
CALTECH (US) — Most materials expand when heated, but a few actually contract. Now engineers have figured out how one of these curious materials does the trick. (more…)
Science & Technology - Jul 29, 2011 14:27 - 1 Comment
Switch-up may lead to one-way sound
CALTECH (US) — A tunable diode that allows acoustic information to travel in one direction only may bring the concept of a true sound-proof room a step closer to reality. (more…)
Science & Technology - Nov 11, 2009 15:39 - 0 Comments
Virtual crashes sound like the real thing
CORNELL (US)—When you kick over a garbage can, it doesn’t make a pure, musical tone. That’s why the sound is so hard to synthesize. Now computer scientists have developed a practical method to generate the crashing and rumbling sounds of objects made up of thin “harmonic shells.” (more…)
Science & Technology - Mar 6, 2009 18:35 - 0 Comments
Elephants feel love deep down in their bones
STANFORD (US)—Falling in love can be an earth-shaking moment. That’s especially true for elephants. A Stanford University ecologist has found that when issuing calls, including those of love, elephants produce not only audible sounds but also low-frequency seismic vibrations that can travel for distances up to several kilometers. (more…)
