Sound
In physics, sound is a vibration that propagates as a typically audible mechanical wave of pressure and displacement, through a medium such as air or water. In physiology and psychology, sound is the ...
Sound - Wikipedia
Science Says Silence Is Much More Important To Our Brains Than We Think
Silence may allow your brain to rejuvenate leaving you feeling a new freedom
Romania mea - Toaca de la Mănăstirea Petru Voda. Nu...
Toaca de la Mănăstirea Petru Voda. Nu exista sunet mai înălțător ca acesta! Merita distribuit !
Ultrasound Treatment Could Help Restore Memory Of Alzheimer's Patients
A non-invasive scanning ultrasound can be used to treat Alzheimer’s disease, according to a discovery by researchers at the University of Queensland. The new...
Only 2% Of The Human Population Can Hear This Mysterious Sound And No One Understands Why
A variety of theories have been offered as an explanation, ranging from the mundane to the fantastic, the psychological to the paranormal.
Supersonic Breakthrough: Concorde Could Fly Again Within Four Years
British fans of the famous jet say they have enough money to buy one and return it to service for the first time since 2003. Club Concorde, which consists of “ex-captains, ex-charterers and people pas...
Sonogenetics: Sound Waves Successfully Used To Control Brain Cells
Scientists say simulating neurons with ultrasound is less invasive than light-based optogenetics. Sound waves have been used to control brain cells for the first time by scientists in California. Dubb...
An Intelligent Device Could Help A Robot To Distinguish Voices At Cocktail Party
Human brains are able to focus in on one conversation in the hubub of a cocktail party by discarding the background noise. But what about robots? Researchers from Duke University demonstrated a intell...
Airbus Patents Mach 4.5 Passenger Jet. Could Fly London To NY In One Hour
The invention concerns an ultra-rapid air vehicle together with a method of aerial locomotion by means of an ultra-rapid air vehicle, where the air vehicle is propelled by a system of motors formed o...
This New Medical Device Can Improve Healing Rates By 30%
A new medical device that can accelerate the body's capacity to heal wounds by up to 30 percent has been developed by researchers in the UK, and it works by tricking the skin cells into behaving much ...
Sound Waves Separate Rare Cancer Cells From Blood
Circulating tumor cells (CTCs) are a rare type of cancer cell that are found in the blood stream of patients with localized tumors. Successful separation of CTCs from blood could serve as a liquid bio...
Top 10 Memorable Movie Sound Effects
Our picks for the top 10 most memorable movie sound effects.
What Animal Sounds Look Like
Mark Fischer, a software developer in California, turns data from recordings of whales, dolphins and birds into psychedelic art...
Unidentified sounds - Unidentified sounds under the Pacific Ocean
Across the 90s , NOAA captured many mysterious sounds across the ocean. The origins of all the sounds remain unknown. They may have a possible connection to ...
Experimental music
This is the experimental video I made that won Best Music Media at the 2006 Ffresh Festival. None of the images are computer created, they're all real things...
Infrasound
Infrasound, sometimes referred to as low-frequency sound, is sound that is lower in frequency than 20 Hz (hertz) or cycles per second, the "normal" limit of human hearing. Hearing becomes gradual...
Infrasound - Wikipedia
Ultrasound
Ultrasound is an oscillating sound pressure wave with a frequency greater than the upper limit of the human hearing range. Ultrasound is thus not separated from 'normal' (audible) sound by differen...
Ultrasound - Wikipedia
Hearing (sense)
Hearing, auditory perception, or audition is the ability to perceive sound by detecting vibrations, changes in the pressure of the surrounding medium through time, through an organ such as the ear. So...
Hearing (sense) - Wikipedia
Silence
Silence is the lack of audible sound or presence of sounds of very low intensity. By analogy, the word silence can also refer to any absence of communication, including in media other than speech. Sil...
Silence - Wikipedia
Acoustics
Acoustics is the interdisciplinary science that deals with the study of all mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound. A scien...
Acoustics - Wikipedia
Amplitude
The amplitude of a periodic variable is a measure of its change over a single period (such as time or spatial period). There are various definitions of amplitude (see below), which are all functions o...
Decibel
The decibel (dB) is a logarithmic unit used to express the ratio between two values of a physical quantity, often power or intensity. One of these quantities is often a reference value, and in this ca...
Noise (audio)
Noise in audio, recording, and broadcast systems refers to the residual low level sound (usually hiss and hum) that is heard in quiet periods of a program.In audio engineering it can refer either to t...
Supersonic
Supersonic speed is a rate of travel of an object that exceeds the speed of sound (Mach 1). For objects traveling in dry air of a temperature of 20 °C (68 °F) at sea level, this speed i...
Supersonic - Wikipedia
Sonic boom
A sonic boom is the sound associated with the shock waves created by an object traveling through the air faster than the speed of sound. Sonic booms generate enormous amounts of sound energy, sounding...
Sonic boom - Wikipedia
Microphone
A microphone, colloquially mic or mike (/ˈmaɪk/), is an acoustic-to-electric transducer or sensor that converts sound in air into an electrical signal. Microphones are used in many applications such a...
Microphone - Wikipedia
Stereophonic sound
Stereophonic sound or, more commonly, stereo, is a method of sound reproduction that creates an illusion of directionality and audible perspective. This is usually achieved by using two or more indepe...
Stereophonic sound - Wikipedia
Soundproofing
Soundproofing is any means of reducing the sound pressure with respect to a specified sound source and receptor. There are several basic approaches to reducing sound: increasing the distance between ...
Soundproofing - Wikipedia
Sound of fingernails scraping chalkboard
Scraping a chalkboard (also known as a blackboard) with the fingernails produces a sound which most people find extremely irritating. The basis of this innate reaction has been studied in the field of...