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days, Pi-messons, Mu--messons and K-messons are also known. It is not known where shall the end take place. Even protons, neutrons and electrons are assumed to be composed of 3 types of quarks. The final definition of Paramaņu is not yet settled.
Shabd (Sound) :-It may be mentioned here that some Indian systems of thoughts (Vaišeşikas, Naiyayikas) associate sound with Ākāsa (space). But Akāśa is incorporal (Amūrta-devoid of the properties of matter).12 On the other hand sound is caught by the ears.13 Amūrta Substance can not generate the attributes of Mārta (Material-corporeal). Process of audibility :
The waves of sound particles (Sabdavargaņā) while striking against the ear's membrane produce quivers in it. These quivers cause motion in the three thin bones - Incus, Malicus and Stepes of the middle part. As a result the liquid perilymph of the inner ear begins to ripple, which in turn causes agitation in the cells of corte organ. These agitations send sensations through auditory nerves to the brain. According to Jain conception, when two physical bodies (organic, inorganic or mixed afga, aga, f#7) strike against each other automatically (Svabhavatah) or by physical effort (Prayogatah) the sound particles (Sabdavarganā) adopt the phenomena of sound. It is Sūkşamasthūla. These sound waves require some medium for onward transmission and made audible. In vacuum it is not audible. In air its velocity is 1100 ft. per second. In different mediums liquids or gass it has different velocities which also differon temperature or pressure. Sound particles are composed of matter, as has also been corroborated by the modern science, so much so that these sound particles (Phonons) can be converted into electric currents which in turn by oscillating a mirror transform into light waves. Light waves are reconverted into electric current which produce (by compression and rarefaction of air) sound waves to the hearer. Telephone, tape-recorder, public address equipments etc, are the instances of how sound waves are converted into eletric current which by striking against the cone through the amplifier are converted into sound waves. 14 Thus sound is nothing but a modification of matter (agitation) created by violent knocks of two physical bodies (Skandha). It is on this very basis of sound that the Jain seers have pronounced an individual atom (Paramanu) as
unsounding itself. It has been defined as having a minutest Jain Education International For Private & Personal Use Only .
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