Reverberation

Reverberation, in psychoacoustics and acoustics, is the persistence of sound after a sound is produced. A reverberation, or reverb, is created when a sound or signal is reflected causing a large number of reflections to build up and then decay as the sound is absorbed by the surfaces of objects in the space – which could include furniture, people, and air. This is most noticeable when the sound source stops but the reflections continue, decreasing in amplitude, until they reach zero amplitude.

Reverberation is frequency dependent: the length of the decay, or reverberation time, receives special consideration in the architectural design of spaces which need to have specific reverberation times to achieve optimum performance for their intended activity. In comparison to a distinct echo that is a minimum of 50 to 100 ms after the initial sound, reverberation is the occurrence of reflections that arrive in less than approximately 50 ms. As time passes, the amplitude of the reflections is reduced until it is reduced to zero. Reverberation is not limited to indoor spaces as it exists in forests and other outdoor environments where reflection exists.

Reverb (disambiguation)

Reverb may refer to:

Reverberation may refer to:

List of Marvel Comics characters: R

R. U. Reddy

R. U. Reddy (Winthrop Roan, Jr.) is a mutant and a member of the Thunderiders. He first appeared in Captain America #269 (May 1982), and was created by J. M. DeMatteis and Mike Zeck. Winthrop Roan, Jr. was the singer in a rock band known as Ruff Stuff. With Honcho and Wolf, he formed the professional motorcyclist team called Team America, which was eventually known as the Thunderiders. R.U. Reddy is a mutant who shares a mental link with the four other members of the Thunderiders. The five mutants can project their collective physical skills, strength, and knowledge into another person without diminishing their own abilities in any way.

Radion the Atomic Man

Radion the Atomic Man first appeared in Marvel Two-in-One #9 (May 1975), and was created by Steve Gerber, Chris Claremont and Herb Trimpe. Exposure to radioactive isotopes caused Dr. Henri Sorel to mutate into an inhuman being who could generate blasts of nuclear energy, and warped his personality. The Puppet Master agreed to assist Radion in exchange for his help. Radion amplified the radiation in the Puppet Master's clay, enabling him to use Thor to attack the Fantastic Four. When Wundarr the Aquarian arrived to help, he absorbed Radion's powers, causing Radion to flee. Sorel then constructed a suit of armor to contain his energies and protect himself from reaching critical mass. He renamed himself the Ravager and traveled to London. He is also known as the Atom.

Catharsis

Catharsis (from Greek κάθαρσις katharsis meaning "purification" or "cleansing") is the purification and purgation of emotions—especially pity and fear—through art or any extreme change in emotion that results in renewal and restoration. It is a metaphor originally used by Aristotle in the Poetics, comparing the effects of tragedy on the mind of spectator to the effect of a cathartic on the body.

Dramatic uses

Catharsis is a term in dramatic art that describes the effect of tragedy (or comedy and quite possibly other artistic forms) principally on the audience (although some have speculated on characters in the drama as well). Nowhere does Aristotle explain the meaning of "catharsis" as he is using that term in the definition of tragedy in the Poetics (1449b21-28). G.F. Else argues that traditional, widely held interpretations of catharsis as "purification" or "purgation" have no basis in the text of the Poetics, but are derived from the use of catharsis in other Aristotelian and non-Aristotelian contexts. For this reason, a number of diverse interpretations of the meaning of this term have arisen. The term is often discussed along with Aristotle's concept of anagnorisis.

Catharsis (disambiguation)

Catharsis is Greek word meaning "cleansing" or "purging".

Catharsis may also refer to:

See also

Catharsis (organization)

Catharsis is a charitable organization located in Tbilisi, Georgia. It has six branches in towns and regions of Georgia. One of the branches was working in Moscow in 1994-2009.

History

Catharsis was formed in 1990. The founder of Catharsis is Zaur-oleg Aladashvili.

Services

Services include: