________________
62 JAIN PHILOSOPHY & MODERN SCIENCE
Some classify sound into three classes ie that produced by (1) animate things, (2) inanimate things (3) mixed effort of animate and inanimate things
With reference to the velocity of sound, the writers of scriptures have said that, sound produced by a great impact may reach the other end of the universe within a few instants 32
Darkness and Light Darkness is the result of a combination of large number of black pudgalas Hot light from incandescent objects, eg sun, lamp, is 'Atap'. Reflection from a mirror etc is 'Chhaya'. The cold reflected light, eg from the moon is 'Udyot' and the accumulation of the reflected light by brilliant stones is called 'Prabha' (brilliance) Although the ancient sages have made several divisions such as 'Udyot', 'Atap' etc of (pudgala) waves of matter, yet we can broadly classily them into two main subrlivisans; ught and darkness 'Udyot', 'Atap', 'Prabha' etc. are all but the different aspects of lght, while shadows etc may come under the category of darkness
Formation, Destruction and Continuity
Jain Philosophers have said that substance is that which is possessed of qualities and modes 33 Quality is the inherent property of a substance. Its
.
82 Pannavana Pad Bhasha. 11 38 Utradhyan Sutra Adhyan 28-6
