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String-like objects in relativistic theories, such as the strings used in some models of interactions between quarks, or those used in the modern string theory, also possess tension. These strings are analyzed in terms of their world sheet, and the energy is then typically proportional to the length of the string. As a result, the tension in ...
Vol. 1: An introduction to the bosonic string. ISBN 0-521-63303-6. Vol. 2: Superstring theory and beyond. ISBN 0-521-63304-4. Szabo, Richard J. (Reprinted 2007) An Introduction to String Theory and D-brane Dynamics. Imperial College Press. ISBN 978-1-86094-427-7. Zwiebach, Barton (2004) A First Course in String Theory. Cambridge University Press.
Two strings are attached from the pegs to the base, and a small loop of string (千斤, qiān jīn) placed around the neck and strings acting as a nut pulls the strings towards the skin, holding a minute wooden bridge in place. The erhu has some unusual features: Its characteristic sound is produced through the vibration of the python skin by ...
In string theory, the strings may be open (forming a segment with two endpoints) or closed (forming a loop like a circle) and may have other special properties. [1] Prior to 1995, there were five known versions of string theory incorporating the idea of supersymmetry (these five are known as superstring theories) and two versions without supersymmetry known as bosonic string theories, which ...
This string crossing is often rapid and is best executed with a sinuous movement of the bow arm. Sometimes the same pitch as an open string will be fingered on an adjacent string, so that the alternation is between the same note on two strings, one stopped, one open, giving a rhythmic pulsating effect.
If the tension on a string is ten lbs., it must be increased to 40 lbs. for a pitch an octave higher. [1] A string, tied at A, is kept in tension by W, a suspended weight, and two bridges, B and the movable bridge C, while D is a freely moving wheel; all allowing one to demonstrate Mersenne's laws regarding tension and length [1]
Vibration, standing waves in a string. The fundamental and the first 5 overtones in the harmonic series. A vibration in a string is a wave. Resonance causes a vibrating string to produce a sound with constant frequency, i.e. constant pitch. If the length or tension of the string is correctly adjusted, the sound produced is a musical tone.
Poldo tackle – an instant tension-applying and tension-releasing mechanism in rope; Pratt knot – a method of tying a tie around one's neck and collar; Pretzel link knot – in knot theory, a branch of mathematics, a pretzel link is a special kind of link; Prusik knot – friction hitch or knot used to put a loop of cord around a rope