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Microcosmology : Atom change is in the physical properties only. Ice, water and steam are all chemically the same compound H20 and molecules retain their molecular identities. The modification of physical properties and the consequent transformation of one kind of energy into another is perhaps a typical instance of pariņāma.
KRIYA : MATTER IS ENERGY
Kriyā is characterised by motion!: Oscillation and vibrations are inherent attributes of matter and that is why pudgala is dynamic. Actually all types of motion come under kri yā, but motion is only one type of kriyā Fission and fusion are also krijā In fact, tranformation of energy of any kinds is kriyā and thus kri yāvān means capable of exerting forces and producing energy.
Because matter is inherently active. Galileo, Newton and Einstein were able to describe and explain many mysteries of the universe by formulating laws of mechanics. Motion of matter evolved a mechanical universe of forces, pressures, tensions, oscillations, and waves. Two fundamental forces exerted by matter are gravitation and electromagnetism. Save for gravitation, nearly all other forces in the material universe - frictional forces, chemical forces which hold atoms together in molecules, cohesive forces which bind particles of matter, elastic forces which cause bodies to maintain their shape are of electromagnetic origin, for all these involve the interplay of matter which is composed of electrical particles.
To describe the mechanics of dynamic, material universe, three parameters are necessary-distance in space, time and mass. In classical physics the mass of any body is fixed and unchanging property. But Einstein established the relativity of mass, asserting that the mass of a moving body increases with its velocity according to the following equation :
when mo is the mass of a body at rest, m is its mass when moving, v is the velocity of the body,
and c is the velocity of light, 1. Parispandana-laksana kriya - Pravacanasāra Pradipika Vrti, 2-37. 2. Mass is not heaviness or weight but denotes a fundamental property of
matter, namely resistance to a change of motion.
