Sound energy is subtler than light energy. If we believe theologians point of view, sound energy is the source of all energy.
Light is a distribution of the probability of detecting photons. Photons are particles that are formed by strings of equidistant energy packages. Each of these energy packages is a one-dimensional shock front that travels in our living space. This field is not the electromagnetic field.
Heat is the kinetic energy of an ensemble of particles. In general these particles need not be charged electrically.
Sound is a vibration of a coherent ensemble of particles.
You are joking about the theologians right?description Sound is essentially mecahnical energy in the medium.
Simplistically, sound in air is small variations in pressure at a receiver, caused by some vibrating body (source) that has or had source sound power. The original power over time, can be thought of as an equivalent excitation force on a mass. The mass may oscillate causing a tone, and the small pressure pertubations are the result of air particle (molecular level not sub-atomic) velocities. The sound pressure decays by friction, and gives of a minute amount of heat. Note that only 1 Watt of acoustic power, gives 120dB re: 1pW, which is very loud. This is nothing whatsoever to do with electro-magnetic waves, photons and the like. You need to read a book on this, so that you can visualise yourself what is happening. I hope that this has been helpful?
Thanks Dear Dr. Pedro for a highly enlightening response. Certainly we should wait for a new field Phononics.
Regards
Anirudh
According to Hindu Philosophy tanmatra is the subtle form of element. Tanmatra is the Sanskrit term which comes from the root words, tan, meaning 'subtle', and matra, meaning 'element. Sound is akash tattwa (element) which is known in English as ether. Gravitation Force is the subtlest state of akash (ether). This description is according to Hindu Philosophy particularly Philosophy of Radhasoami Faith.
Except there is no ether. When science and religion clash...religion loses. These may be senstive and beautiful descriptions, and contain some wisdom, but like phlogiston and the philosopher's stone, do not exist.
Sometimes I feel Einstein was more a religious philosopher than a physical science theorist. In 1896, the year Einstein entered into Swiss University, Swami Vivekananda delivered his class talks on Vedanta Philosophy in New York. In one of his talks he mentioned about 'Eternal Changeability of Prakriti (Nature)'. Perhaps this thought of Vivekananda might have given the way to Einstein to develop a theory of Law of Conservation of Mass and Energy and to give a very famous formula E = mc^2.
Regards
E=mc^2 came from special relativity, not a conservation of energy theory.
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